mailing way, energy'ay

Inc.

L e g a l R e g u l a t o r y D e p a r t m e n t

4 0 0 O t a r r e P a r k w a y , C a y c e , SC 2 9 0 3 3

M a i l i n g A d d r e s s :

2 2 0 O p e r a t i o n W a y , MC C 2 2 2 , C a y c e SC 2 9 0 3 3

D o m i n i o n E n e r g y . c o m

VIA ELECTRONIC FILING

The Honorable Jocelyn G. Boyd Chief Clerk/Administrator

May 23,2019

Public Service Commission of South Carolina 101 Executive Center Drive Columbia, South Carolina 29210

j-"1 DE ominion p nergy ·

RE: Request of Dominion Energy South Carolina, Inc. for Approval of New "Rider to Retail Rates- Economic Development Rider (EDR)" Tariff (No adjustment to retail electric base rates of Dominion Energy South Carolina, Inc. requested) Docket No. 2019-151-E

Dear Ms. Boyd:

By Order No. 2019-375, dated May 22, 2019, in the above-referenced docket, the Public Service Commission of South Carolina ("Commission") approved Dominion Energy South Carolina, Inc.'s ("DESC" or "Company") "Rider to Retail Rates -Economic Development Rider (EDR)" tariff ("EDR Tariff').

DESC provided the approved EDR Tariff to the appropriate Commission personnel for uploading to the Commission's Etariff system earlier today. In so doing, DESC discovered a scrivener's error that DESC hereby requests approval to correct. Specifically, on page 3 of the EDR Tariff, under the column heading "Load Factor(%)" under "EDI Credit Percentages(%)," the term "Months 47-60" should read "Months 49-60." Clean and redlined versions of the revised EDR Tariff reflecting this correction are attached hereto.

Approval of the correction of the scrivener's error on the EDR Tariff does not require a determination of the entire r::~te Rtructure and overall rate of return and does not result in any rate increase to the Company. As such, DESC respectfully requests that the Commission approve the revised EDR Tariff without notice and hearing. See S.C. Code Ann. § 58-27-870(F).

(Continued ... )

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Dominion Energy Southeast Services, Inc.Legal Regulatory Department400 Otarre Parkway, Cayce, SC 29033Mailing Address:220 Operation Way, MC C222, Cayce SC 29033DominionEnergy.corn

~~ Dominion~~ Energy'ay

23, 2019

VIA ELECTRONIC FILING

The Honorable Jocelyn G. BoydChief Clerk/AdministratorPublic Service Commission of South Carolina101 Executive Center DriveColumbia, South Carolina 29210

RE: Request of Dominion Energy South Carolina, Inc. for Approval of New"Rider to Retail Rates — Economic Development Rider (EDR)" Tariff (Noadjustment to retail electric base rates of Dominion Energy SouthCarolina, Inc. requested)Docket No. 2019-151-E

Dear Ms. Boyd:

By Order No. 2019-375, dated May 22, 2019, in the above-referenced docket,the Public Service Commission of South Carolina ("Commission") approved DominionEnergy South Carolina, Inc.'s ("DESC" or "Company") "Rider to Retail Rates—Economic Development Rider (EDR)" tariff ("EDR Tariff'.

DESC provided the approved EDR Tariff to the appropriate Commissionpersonnel for uploading to the Commission's Etariff system earlier today. In so doing,DESC discovered a scrivener's error that DESC hereby requests approval to correct.Specifically, on page 3 of the EDR Tariff, under the column heading "Load Factor ('/0)"

under "EDI Credit Percentages ('/0)," the term "Months 47-60" should read "Months49-60." Clean and redlined versions of the revised EDR Tariff reflecting thiscorrection are attached hereto.

Approval of the correction of the scrivener's error on the EDR Tariff does notreouire a determination of the entire rate structure and overall rate of return anddoes not result in any rate increase to the Company. As such, DESC respectfullyrequests that the Commission approve the revised EDR Tariff without notice andhearing. See S.C. Code Ann. $ 58-27-870(F).

(Continued... )

Pa e 2

B y c o p y o f t h i s l e t t e r , w e a r e s e r v i n g c o u n s e l f o r t h e S o u t h C a r o l i n a O f f i c e o f

R e g u l a t o r y S t a f f w i t h t h e C o m p a n y ' s r e q u e s t .

T h a n k y o u f o r y o u r t i m e a n d c o n s i d e r a t i o n . If you have any questions or concerns, please do not hesitate to contact us.

MWG/kms Enclosures

cc: Dawn Hipp Jeffrey M. Nelson, Esquire Becky Dover, Esquire Carri Grube-Lybarker, Esquire

Matthew W. Gissendanner

(all via electronic mail and First Class U.S. Mail w/enclosure)

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The Honorable Jocelyn G. BoydMay 28, 2019Pa e2

By copy of this letter, we are serving counsel for the South Carolina Office ofRegulatory Staff with the Company's request.

Thank you for your time and consideration. If you have any questions orconcerns, please do not hesitate to contact us.

Matthew W. Gissendanner

MWG/kmsEnclosures

CC: Dawn HippJeffrey M. Nelson, EsquireBecky Dover, EsquireCarri Grube-Lybarker. Esquire

(all via electronic mail and First Class U.S. Mail w/enclosure)

E N E R G Y S O U T H C A R O L I N A , INC.

E L E C T R I C I T Y

R I D E R T O R E T A I L R A T E S

A V A I L A B I L I T Y

E C O N O M I C D E V E L O P M E N T R I D E R ( E D R )

( P a g e 1 o f 4 )

T h i s r i d e r is a v a i l a b l e at the C o m p a n y ' s option t o n o n - r e s i d e n t i a l c u s t o m e r s t a k i n g s e r v i c e u n d e r t h e C o m p a n y ' s rate s c h e d u l e s

20, 21, 2 3 and 2 4 p r o v i d e d t h a t the e n t i t y a t t h i s s e r v i c e a d d r e s s is n o t c l a s s i f i e d as Retail T r a d e , E d u c a t i o n a l S e r v i c e s , O t h e r

S e r v i c e s ( e x c e p t P u b l i c A d m i n i s t r a t i o n ) o r P u b l i c A d m i n i s t r a t i o n by t h e N o r t h A m e r i c a n I n d u s t r y C l a s s i f i c a t i o n S y s t e m as

p u b l i s h e d by t h e U n i t e d S t a t e s G o v e r n m e n t , o r t h e s u c c e s s o r s y s t e m t h a t m a y s u p e r s e d e t h i s c l a s s i f i c a t i o n system.

T h i s r i d e r is a v a i l a b l e f o r I n c r e m e n t a l Load, as d e f i n e d b e l o w , a s s o c i a t e d w i t h p e r m a n e n t s e r v i c e t o n e w o r e x i s t i n g

e s t a b l i s h m e n t s and e x p a n s i o n s o f e x i s t i n g e s t a b l i s h m e n t s w h e r e c u s t o m e r s m a k e a p p l i c a t i o n u n d e r t h i s r i d e r and w h e r e t h e

C o m p a n y a p p r o v e s s u c h a p p l i c a t i o n . T h e I n c r e m e n t a l Load m u s t be a m i n i m u m o f 5 0 0 k W o r 588 k V A a t o n e p o i n t o f d e l i v e r y .

To q u a l i f y f o r s e r v i c e u n d e r t h i s rider, the C u s t o m e r m u s t a l s o m e e t the q u a l i f i c a t i o n s u n d e r Part A o r B below:

A. The customer must employ an additional workforce of a minimum of twenty-five (25) new permanent full-time equivalent employees per 500 kW or 588 kVA of Incremental Load as defined below. Employee additions must occur following the Company's approval for service under this rider and be certified to the Company by the Customer in writing.

B. The Customer's Incremental Load must result in a minimum new capital investment of five hundred thousand dollars ($500,000) per 500 kW or 588 kVA. The new capital investment must occur following the Company's approval of service under this rider and be certified to the Company by the customer in writing.

This rider is not available for load shifted from one establishment or set of delivery points on Dominion Energy South Carolina's system to another establishment. Absent a qualifying expansion, this rider is also not available to a new customer which results from a change of ownership of an existing customer at an existing location on Dominion Energy South Carolina's system. However, if a change of ownership occurs after a customer contracts for service under this rider, the new customer will be allowed to continue service under this rider for the balance of the contract term. Additionally, this rider is not available for renewal of service from an existing customer following interruptions of operations including but not limited to, interruptions resulting from equipment failure, fire, earthquake, temporary plant shutdowns, natural or man-made catastrophes, strikes or economic conditions.

CHARACTER OF SERVICE

The rider provides discounts to the Customer's bills as calculated under applicable rate schedules which are selected by the Customer and will be classified as standard service under such rate schedules. As indicated in the Billing section, below, discounts under this rider will only be applicable to Basic Facilities Charges, Demand Charges and Energy Charges incurred under rate schedules 20, 21, 23 and 24.

DEFINITIONS

1. Incremental Load: Means the net permanent, new load, excluding renewal of service loads, which is greater than the load which existed prior to approval of an application for service under this rider. Such load will be determined solely by the Company. Incremental Load shall exclude any interruptible service, back-up service, standby service, or othe!"Nise non-standard power se!"Jice.

2. Effective Date: Means the date the Contract for service under this rider is signed.

3. Contract Year: Means the period of twelve (12) consecutive monthly billing cycles beginning with the first invoice to which the Economic Development Incentive ("EDI") Credit is applied.

4. Month: Means the period between any two (2) regular readings of the Company's meters which ordinarily shall not be less than twenty-eight (28) days or more than thirty-four (34) days.

5. Service Date: Means the first day of the first month in which the EDI Credit will be included on the bill.

Effective May 22, 2019 Pursuant to Public Service Commission of South Carolina Order No. 2019-375

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DONIINION ENERGY SOUTH CAROLINA, INC. ELECTRICITY

RIDER TO RETAIL RATES ECONOMIC DEVELOPNIENT RIDER (EDR)(Page 1 of 4)

AVAILABILITY

This rider is available at the Company's option to non-residential customers taking service under the Company's rate schedules20, 21, 23 and 24 provided that the entity at this service address is not classified as Retail Trade, Educational Services, OtherServices (except Public Administration) or Public Administration by the North American Industry Classification System aspublished by the United States Government, or the successor system that may supersede this classification system.

This rider is available for Incremental Load, as defined below, associated with permanent service to new or existingestablishments and expansions of existing establishments where customers make application under this rider and where theCompany approves such application. The Incremental Load must be a minimum of 500 kW or 588 kVA at one point of delivery.To qualify for service under this rider, the Customer must also meet the qualifications under Part A or B below:

A. The customer must employ an additional workforce of a minimum of twenty-five (25) new permanent full-timeequivalent employees per 500 kW or 588 kVA of Incremental Load as defined below. Employee additions mustoccur following the Company's approval for service under this rider and be certified to the Company by theCustomer in writing.

B. The Customefs Incremental Load must result in a minimum new capital investment of five hunidred thousanddollars ($500,000) per 500 kW or 588 kVA. The new capital investment must occur following the Company'sapproval of service under this rider and be certified to the Company by the customer in writing.

This rider is not available for load shifted from one establishment or set of delivery points on Dominion Energy South Carolina'ssystem to another establishment. Absent a qualifying expansion, this rider is also not available to a new customer which resultsfrom a change of ownership of an existing customer at an existing location on Dominion Energy South Carolina's system.However, if a change of ownership occurs after a customer contracts for service under this rider, the new customer will beallowed to continue service under this rider for the balance of the contract term. Additionally, this rider is not available for renewalof service from an existing customer following interruptions of operations including but not limited to, interruptions resulting fromequipment failure, fire, earthquake, temporary plant shutdowns, natural or man-made catastrophes, strikes or economicconditions.


The rider provides discounts to the Customer's bills as calculated under applicable rate schedules which are selected by theCustomer and will be classified as standard service under such rate schedules. As indicated in the Billing section, below,discounts under this rider will only be applicable to Basic Facilities Charges, Demand Charges and Energy Charges incurredunder rate schedules 20, 21, 23 and 24.

DEFINITIONS

1. Incremental Load: Means the net permanent, new load, excluding renewal of service loads, which is greater than theload which existed prior to approval of an application for service under this rider. Such load will be determined solelyby the Company. Incremental Load shall exclude any interruptible service, back-up service, standby service, orother vise non-standard power acr.ice.


3. Contract Year: Means the period of twelve (12) consecutive monthly billing cycles beginning with the first invoice towhich the Economic Development Incentive ("EDI") Credit is applied.

4. Month: Means the period between any two (2) regular readings of the Company's meters which ordinarily shall not beless than twenty-eight (28) days or more than thirty-four (34) days.

Effective May 22, 2019Pursuant to Public Service Commission of South Carolina Order No. 2019-375

G E N E R A L P R O V I S I O N S


(Page 2 of 4)

1. The Customer must make application to the Company for service under this rider and the Company must have approved the application before an EDI Credit will apply. The application must include a description of the amount and nature of the Incremental Load and must specify the basis on which the Customer seeks to qualify under the Availability section above, including Part A or B. In the application, the Customer must affirm by means of a signed affidavit that the availability of this rider \Nas instrumental in the Customer's decision to locate or expand its facilities on the Company's system.

2. The Customer must sign a contract for service under the terms of this rider (Contract) and must agree to an initial minimum Contract term of ten (1 0) years, with the EDI Credits being available for a maximum period of five (5) years beginning with the Service Date.

3. The Customer shall notify the Company in writing at least thirty (30) days in advance of the month to which it elects for the EDI Credits to begin to apply. If no such notice is received, the Company will declare a Service Date and begin to apply the EDI Credits, if any are due, not later than six (6) months after the Company-owned transformers are energized and electric service was first made available to the Customer. The five-year eligibility period for the EDI Credits will begin to run at that time even if the Customer does not take service. Service received by the Customer prior to the Service Date may be under a rate schedule not listed on this rider.

4. For Customers applying for EDI credits based on an expansion, the Company will determine, based on historical usage during the appropriate period, what portion of the Customer's load qualifies as Incremental Load that is eligible under this rider. The Customer must also meet all other qualifications as outlined in the Availability section above.

5. All provisions of the applicable rate schedules described above will apply to service qualifying under this rider. EDI credits shall only apply to the specific rate elements listed in the Billing section, below.

6. In consideration for the EDI credits provided under this rider, the Customer shall take full-requirements service from the Company for the term of the Contract such that all energy and capacity needs at the Customer's facility will be purchased from the Company except for Customer-owned power generation for emergency use by Customer as backup for its critical infrastructure and/or the installation and operation of a battery storage system for emergency use by Customer as backup for its critical infrastructure. The Company may enforce this requirement through legal or regulatory proceedings. In addition and at the Company's option, in the event of non-compliance by the Customer, the Customer agrees to pay to Company an amount equal to the sum of all EDis applied by the Company to the Customer's invoices under the Contract. This requirement does not preclude the Customer from participating in any of the Company's otherwise applicable programs including its Distributed Energy Resource (DER) or Standby Generator programs.

BILLiNG

The Customer will be billed according to the rate schedule the Customer has chosen consisting of: 1) Basic Facilities Charges; 2) Energy Charges; 3) Demand Charges; and 4) any other applicable charges as specified in that rate schedule. Beginning with the Service Date, and extending for the first five (5) years of the ten (1 0) year Contract term, a qualifying Customer will receive an EDI Credit as follows:

1. EDI Credit: The Customer's monthly EDI Credit shall be determined by applying the applicable EDI Credit percentage (EDI Credit Percentage) as shown in paragraph 2 below to the sum of the Basic Facilities Charges, the Demand Charges and the Energy Charges as billed for that service under the Company's rate schedules 20, 21, 23 and 24.


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DOMINION ENERGY SOUTH CAROLINA, INC. ELECTRICITY

RIDER TO RETAIL RATES ECONOMIC DEVELOPMENT RIDER (EDR)(Page 2 of 4)

GENERAL PROVISIONS

1. The Customer must make application to the Company for service under this rider and the Company must haveapproved the application before an EDI Credit will apply. The application must include a description of the amountand nature of the Incremental Load and must specify the basis on which the Customer seeks to qualify under theAvailability section above, including Part A or B. In the application, the Customer must affirm by means of a signedaffidavit that the ava!!ab!!!Iii of this ride; was instrumental in the C sterne s decision to locate or expand ils faciliffeson the Company's system.

2. The Customer must sign a contract for service under the terms of this rider (Contract) and must agree to an initialminimum Contract term of ten (10) years, with the EDI Credits being available for a maximum period of five (5) yearsbeginning with the Service Date.

3. The Customer shall notify the Company in writing at least thirty (30) days in advance of the month to which it electsfor the EDI Credits to begin to apply. If no such notice is received, the Company will declare a Service Date andbegin to apply the EDI Credits, if any are due, not later than six (6) months after the Company-owned transformersare energized and electric service was first made available to the Customer. The five-year eligibility period for theEDI Credits will begin to run at that time even if the Customer does not take service. Service received bythe Customerprior to the Service Date may be under a rate schedule not listed on this rider.

4. For Customers applying for EDI credits based on an expansion, the Company will determine, based on historicalusage during the appropriate period, what portion of the Customer's load qualifies as Incremental Load that is eligibleunder this rider. The Customer must also meet all other qualifications as outlined in the Availability section above.

5. All provisions of the applicable rate schedules described above will apply to service qualifying under this rider. EDIcredits shall only apply to the specific rate elements listed in the Billing section, below.

6. In consideration for the ED I credits provided under this rider, the Customer shall take full-requirements service fromthe Company for the term of the Contract such that all energy and capacity needs at the Customer's facility will bepurchased from the Company except for Customer-owned power generation for emergency use by Customer asbackup for its critical infrastructure and/or the installation and operation of a battery storage system for emergencyuse by Customer as backup for its critical infrastructure. The Company may enforce this requirement through legalor regulatory proceedings. In addition and at the Company's option, in the event of non-compliance by the Customer,the Customer agrees to pay to Company an amount equal to the sum of all EDls applied by the Company to theCustomer's invoices under the Contract. This requirement does not preclude the Customer from participating in anyof the Company's otherwise applicable programs including its Distributed Energy Resource (DER) or StandbyGenerator programs,

BILLiNG

The Customer will be billed according to the rate schedule the Customer has chosen consisting of: 1) Basic Facilities Charges;2) Energy Charges; 3) Demand Charges; and 4) any other applicable charges as specified in that rate schedule. Beginning withthe Service Date, and extending for the first five (5) years of the ten (10) year Contract term, a qualifying Customer will receivean EDI Credit as follows:

1. EDI Credit; The Customer's monthly EDI Credit shall be determined by applying the applicable EDI Credit percentage(EDI Credit Percentage) as shown in paragraph 2 below to the sum of the Basic Facilities Charges, the DemandCharges and the Energy Charges as billed for that service under the Company's rate schedules 20, 21, 23 and 24.


E N E R G Y SOUTH C A R O L I N A , INC.


R I D E R TO R E T A I L R A T E S

ECONOMIC D E V E L O P M E N T RIDER (EDR)

(Page 3 o f 4)

2. E x c l u d e d from EDI C r e d i t c a l c u l a t i o n s are t h o s e rate c o m p o n e n t s ( C o m p o n e n t s ) w h i c h are c h a r g e d u n d e r o t h e r

riders o r a d j u s t m e n t s w h i c h e i t h e r are c u r r e n t l y in e f f e c t o r w h i c h m a y be added in t h e future. T h e C o m p o n e n t s t h a t

are c u r r e n t l y in e f f e c t i n c l u d e : (1) A d j u s t m e n t f o r Fuel, V a r i a b l e E n v i r o n m e n t a l & A v o i d e d Capacity, and Distributed

E n e r g y Resource Costs; (2) Demand Side M a n a g e m e n t C o m p o n e n t ; (3) Pension Costs Component; and (4) Storm

D a m a g e C o m p o n e n t .

3. EDI C r e d i t P e r c e n t a g e s : T h e C u s t o m e r ' s EDI C r e d i t P e r c e n t a g e shall be:

L o a d F a c t o r ( % )

M o n t h s 1-12

M o n t h s 1 3 - 2 4

M o n t h s 2 5 - 3 6

M o n t h s 3 7 - 4 8

M o n t h s 4 9 - 6 0

4 0 - 4 9

15

10

5 5 0

EDI CREDIT PERCENTAGES(%)

50-64 25 15 10 5 5

65 or greater 30 20 15 10 5

4. The appropriate EDI Credit Percentage will apply based on the Customer's actual load factor calculated at billing. The load factor will be calculated based on kilowatt-hours (kWh) used during the month divided by the product of the maximum 15-minute kW demand registered or computed times the actual number of billing hours in the month. The load factor used to determine the EDI credit for expansion loads will be the load factor for the total facility.

5. In the event that the Customer is no longer served under rate schedules 20, 21, 23 and 24 for any portion Customer's load, the EDI Credits will no longer be applicable to such portion.

6. EDI Credits will be terminated in the event that the Customer violates or no longer meets any of the terms and conditions associated with the rider or the application for service under it.

EARLY TERMINATION CHARGES

Should this rider be terminated for any reason prior to the conclusion of the initial term, the Company shall bill and the Customer shall pay, within thirty (30) days of the invoice date, the percentage of all EDI Credits previously applied by the Company to the Customer's invoices under this rider according to the following schedule:

Contract Year 1-5

6 7 8 9

10

%of Total Received EDI Credits 100% 80% 60% 40% 20% 10%

The Early Termination Charges under this rider are in addition to all other termination charges provided for in the Contract including but not limited to the facilities termination charge described in the Standard Conditions and the demand termination charge described in the Standard Conditions.

SPECIAL PROVISIONS

The Company will furnish service in accordance with its standard specifications. Non-standard service will be furnished only when the customer pays the difference in costs between non-standard service and standard service or pays to the Company its normal monthly facility charge based on such difference in costs.


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RIDER TO RETAIL RATES ECONOMIC DEVELOPIIIIENT RIDER (EDR)(Page 3 of 4)

2. Excluded from EDI Credit calculations are those rate components (Components) which are charged under otherriders or adjustments which either are currently in effect or which may be added in the future. The Components thatare currently in effect include: (1) Adjustment for Fuel, Venable Environmental 8 Avoided Capacity, and DistributedEnergy Resource Costs; (2) Demand Side Management Component; (3) Pension Costs Component; and (4) StormDamage Component.

3. EDI Credit Percentages: The Customer's EDI Credit Percentage shall be:

EDI CREDIT PERCENTAGES ('/0)

Load Factor ('/o)Months 1-12Months 13-24Months 25-36Months 37-48Months 49-60

40-491510550

50-6425151055

65 or greater302015105

4. The appropriate EDI Credit Percentage will apply based on the Customer's actual load factor calculated at billing.The load factor will be calculated based on kilowatt-hours (kWh) used during the month divided by the product of themaximum 15-minute kW demand registered or computed times the actual number of billing hours in the month. Theload factor used to determine the EDI credit for expansion loads will be the load factor for the total facility.

5. In the event that the Customer is no longer served under rate schedules 20, 21, 23 and 24 for any portion Customer'load, the EDI Credits will no longer be applicable to such portion.

6. EDI Credits will be terminated in the event that the Customer violates or no longer meets any of the terms andconditions assomated with the rider or the application for service under it.


Should this rider be terminated for any reason prior to the conclusion of the initial term, the Company shall bill and the Customershall pay, within thirty (30) days of the invoice date, the percentage of all EDI Credits previously applied by the Company to theCustomer's invoices under this rider according to the following schedule:

Contract Year1-5

6789

10

'/o of Total Received EDI Credits100'/080'/o60'/040'/o20'/010o/o

The Early Termination Charges under this rider are in addition to all other termination charges provided for in the Contractincluding but not limited to the famlities termination charge described in the Standard Conditions and the demand terminationcharge described in the Standard Conditions.

SPECIAL PROVISIONS

The Company will furnish service in accordance with its standard specifications. Non-standard service will be furnished onlywhen the customer pays the difference in costs between non-standard service and standard service or pays tn the Cnmnany iis

Effective May 22, 201 9Pursuant to Public Service Commission of South Carolina Order I'lo. 2019-375




T E R M O F C O N T R A C T


(Page 4 of 4)

Contracts shall be for an initial minimum term of ten (10) years, with the EDI Credits being available for a maximum period of five (5) years beginning with the Service Date. There shall be a separate Contract for each meter at each location. Contracts will survive termination or expiration of EDI Credits.

GENERAL TERMS AND CONDITIONS

The Company's General Terms and Conditions are incorporated by reference and are part of this rider.

Effective May 22,2019 Pursuant to Public Service Commission of South Carolina Order No. 2019-375

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TERNI OF CONTRACT

Contracts shall be for an initial minimum term of ten (10) years, with the EDI Credits being available for a maximum period offive (5) years beginning with the Service Date. There shall be a separate Contract for each meter at each location. Contractswill survive termination or expiration of EDI Credits.

GENERAL TERMS AND CONDITIONS



D E V E L O P M E N T R I D E R ( E D R )

(Page 1 of 4)

This rider is available at the Company's option to non-residential customers taking service under the Company's rate schedules 20, 21, 23 and 24 provided that the entity at this service address is not classified as Retail Trade, Educational Services, Other Services (except Public Administration) or Public Administration by the North American Industry Classification System as published by the United States Government, or the successor system that may supersede this classification system.

This rider is available for Incremental Load, as defined below, associated with permanent service to new or existing establishments and expansions of existing establishments where customers make application under this rider and where the Company approves such application. The Incremental Load must be a minimum of 500 kW or 588 kVA at one point of delivery. To qualify for service under this rider, the Customer must also meet the qualifications under Part A or B below:

A. The customer must employ an additional workforce of a minimum of twenty-five (25) new permanent full-time equivalent employees per 500 kW or 588 kVA of Incremental Load as defined below. Employee additions must occur following the Company's approval for service under this rider and be certified to the Company by the Customer in writing.

B. The Customer's Incremental Load must result in a minimum new capital investment of five hundred thousand dollars ($500,000) per 500 kW or 588 kVA. The new capital investment must occur following the Company's approval of service under this rider and be certified to the Company by the customer in writing.

This rider is not available for load shifted from one establishment or set of delivery points on Dominion Energy South Carolina's system to another establishment. Absent a qualifying expansion, this rider is also not available to a new customer which results from a change of ownership of an existing customer at an existing location on Dominion Energy South Carolina's system. However, if a change of ownership occurs after a customer contracts for service under this rider, the new customer will be allowed to continue service under this rider for the balance of the contract term. Additionally, this rider is not available for renewal of service from an existing customer following interruptions of operations including but not limited to, interruptions resulting from equipment failure, fire, earthquake, temporary plant shutdowns, natural or man-made catastrophes, strikes or economic conditions.


The rider provides discounts to the Customer's bills as calculated under applicable rate schedules which are selected by the Customer and will be classified as standard service under such rate schedules. As indicated in the Billing section, below, discounts under this rider will only be applicable to Basic Facilities Charges, Demand Charges and Energy Charges incurred under rate schedules 20, 21, 23 and 24.

DEFINITIONS

1. Incremental Load: Means the net permanent, new load, excluding renewal of service loads, which is greater than the load which existed prior to approval of an application for service under this rider. Such load will be determined solely by the Company. Incremental Load shall exclude any interruptible service, back-up service, standby service, or otherwise non-standard power service.


3. Contract Year: Means the period of twelve (12) consecutive monthly billing cycles beginning with the first invoice to which the Economic Development Incentive ("EDI") Credit is applied.

4. Month: Means the period between any two (2) regular readings of the Company's meters which ordinarily shall not be less than twenty-eight (28) days or more than thirty-four (34) days.

5. Service Date: Means the first day of the first month in which the EDI Credit will be included on the bill.


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RIDER TO RETAIL RATES

AVAILABILITY

ECONOMIC DEVELOPMENT RIDER (EDR)(Page 1 of4)

This rider is available at the Company's option to non-residential customers taking service under the Company's rate schedules20, 21, 23 and 24 provided that the entity at this service address is not classified as Retail Trade, Educational Services, OtherServices (except Public Administration) or Public Administration by the North American Industry Classification System aspublished by the United States Government, or the successor system that may supersede this classification system.

This rider is available for Incremental Load, as defined below, associated with permanent service to new or existingestabhshments and expansions of existing establishments where customers make application under this rider and where theCompany approves such application. The Incremental Load must be a minimum of 500 kW or 588 kVA at one point of delivery.To qualify for service under this rider, the Customer must also meet the qualifications under Part A or B below:

A. The customer must employ an additional workforce of a minimum of twenty-five (25) new permanent full-timeequivalent employees per 500 kW or 588 kVA of Incremental Load as defined below. Employee additions mustoccur following the Company's approval for service under this rider and be certified to the Company by theCustomer in writing.

B. The Customer's Incremental Load must result in a minimum new capital investment of five hundred thousanddollars ($500,000) per 500 kW or 588 kVA. The new capital investment must occur following the Company'sapproval of service under this rider and be certified to the Company by the customer in writing.

This rider is not available for load shiffed from one establishment or set of delivery points on Dominion Energy South Carolina'ssystem to another establishment. Absent a qualifying expansion, this rider is also not available to a new customer which resultsfrom a change of ownership of an existing customer at an existing location on Dominion Energy South Carolina's system.However, if a change of ownership occurs after a customer contracts for service under this rider, the new customer will beallowed to continue service under this rider for the balance of the contract term. Additionally, this rider is not available for renewalof seirvice from an existing customer following interruptions of operations including but not limited to, interruptions resulting fromequipment failure, fire, earthquake, temporary plant shutdowns, natural or man-made catastrophes, strikes or economicconditions.


The rider provides discounts to the Customer's bills as calculated under applicable rate schedules which are selected by theCustomer and will be classified as standard service under such rate schedules. As indicated in the Billing section, below,discounts under this rider will only be applicable to Basic Facilities Charges, Demand Charges and Energy Charges incurredunder rate schedules 20, 21, 23 and 24.

DEFINITIONS

1. Incremental Load: Means the net permanent, new load, excluding renewal of service loads, which is greater than theload which existed prior to approval of an application for service under this rider. Such load will be determined solelyby the Company. Incremental Load shall exclude any interruptible service, back-up service, standby service, orotherwise non-standard power service.

2. Effective Date; Means the date the Contract for service under this rider is signed.

3. Contract Year: Means the period of twelve (12) consecutive monthly billing cycles beginning with the first invoice towhich the Economic Development Incentive ("EDI") Credit is applied,

4. Month: Means the period between any two (2) regular readings of the Company's meters which ordinarily shall not beless than twenty-eight (28) days or more than thirty-four (34) days.





G E N E R A L P R O V I S I O N S


(Page 2 of 4)

1. The Customer must make application to the Company for service under this rider and the Company must have approved the application before an EDI Credit will apply. The application must include a description of the amount and nature of the Incremental Load and must specify the basis on which the Customer seeks to qualify under the Availability section above, including Part A or B. In the application, the Customer must affirm by means of a signed affidavit that the availability of this rider \Vas instrumental in the Customer's decision to locate or expand its facilities on the Company's system.

2. The Customer must sign a contract for service under the terms of this rider (Contract) and must agree to an initial minimum Contract term of ten (1 0) years, with the EDI Credits being available for a maximum period of five (5) years beginning with the Service Date.

3. The Customer shall notify the Company in writing at least thirty (30) days in advance of the month to which it elects for the EDI Credits to begin to apply. If no such notice is received, the Company will declare a Service Date and begin to apply the EDI Credits, if any are due, not later than six (6) months after the Company-owned transformers are energized and electric service was first made available to the Customer. The five-year eligibility period for the EDI Credits will begin to run at that time even if the Customer does not take service. Service received by the Customer prior to the Service Date may be under a rate schedule not listed on this rider.

4. For Customers applying for EDI credits based on an expansion, the Company will determine, based on historical usage during the appropriate period, what portion of the Customer's load qualifies as Incremental Load that is eligible under this rider. The Customer must also meet all other qualifications as outlined in the Availability section above.

5. All provisions of the applicable rate schedules described above will apply to service qualifying under this rider. EDI credits shall only apply to the specific rate elements listed in the Billing section, below.

6. In consideration for the EDI credits provided under this rider, the Customer shall take full-requirements service from the Company for the term of the Contract such that all energy and capacity needs at the Customer's facility will be purchased from the Company except for Customer-owned power generation for emergency use by Customer as backup for its critical infrastructure and/or the installation and operation of a battery storage system for emergency use by Customer as backup for its critical infrastructure. The Company may enforce this requirement through legal or regulatory proceedings. In addition and at the Company's option, in the event of non-compliance by the Customer, the Customer agrees to pay to Company an amount equal to the sum of all EDis applied by the Company to the Customer's invoices under the Contract. This requirement does not preclude the Customer from participating in any of the Company's otherwise applicable programs including its Distributed Energy Resource (DER) or Standby Generator programs.

BILLING

The Customer will be billed according to the rate schedule the Customer has chosen consisting of: 1) Basic Facilities Charges; 2) Energy Charges; 3) Demand Charges; and 4) any other applicable charges as specified in that rate schedule. Beginning with the Service Date, and extending for the first five (5) years of the ten (1 0) year Contract term, a qualifying Customer will receive an EDI Credit as follows:

1. EDI Credit: The Customer's monthly EDI Credit shall be determined by applying the applicable EDI Credit percentage (EDI Credit Percentage) as shown in paragraph 2 below to the sum of the Basic Facilities Charges, the Demand Charges and the Energy Charges as billed for that service under the Company's rate schedules 20, 21, 23 and 24.


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RIDER TO RETAIL RATES

GENERAL PROVISIONS

ECONOMIC DEVELOPMENT RIDER {EDR)(Page 2 of 4)

1. The Customer must make application to the Company for service under this rider and the Company must haveapproved the application before an EDI Credit will apply. The application must include a description of the amountand nature of the Incremental Load and must specify the basis on which the Customer seeks to qualify under theAvailability section above, including Part A or B. In the application, the Customer must affirm by means of a signedatffdavit that the ava!!abi!it" of this rider was instr ...ental in the Custoiner's decision to ocale ol expand its lacilllieson the Company's system.

2. The Customer must sign a contract for service under the terms of this rider (Contract) and must agree to an initialminimum Contract term of ten (10) years, with the EDI Credits being available for a maximum period of five (5) yearsbeginning with the Service Date.

3. The Customer shall notify the Company in writing at least thirty (30) days in advance of the month to which it electsfor the EDI Credits to begin to apply. If no such notice is received, the Company will declare a Service Date andbegin to apply the EDI Credits, if any are due, not later than six (6) months after the Company-owned transformersare energized and electdic service v!as first made available to the Customer. The five-year eligibility period for theEDI Credits will begin to run at that time even if the Customer does not take service. Service received by the Customerprior to the Service Date may be under a rate schedule not listed on this rider.

4. For Customers applying for EDI credits based on an expansion, the Company will determine, based on historicalusage during the appropriate period, what portion of the Customer's load qualifies as Incremental Load that is eligibleunder this rider. The Customer must also meet all other qualifications as outlined in the Availability section above,

5. AII provisions of the applicable rate schedules described above will apply to service qualifying under this rider. EDIcredits shall only apply to the specific I'ate elements listed in the Billing section, below.

6. In consideration for the EDI credits provided under this rider, the Customer shall take full-requirements service fromthe Company for the term of the Contract such that all energy and capacity needs at the Customer's facility will bepurchased from the Company except for Customer-owned power generation for emergency use by Customer asbackup for its critical infrastructure and/or the installation and operation of a battery storage system for emergencyuse by Customer as backup for its critical infrastructure. The Company may enforce this requirement through legalor regulatory proceedings. In addition and at the Company's option, in the event of non-compliance by the Customer,the Customer agrees to pay to Company an amount equal to the sum of all EDls applied by the Company to theCustomer's invoices under the Contract. This requirement does not preclude the Customer from participating in anyof the Company's otherwise applicable programs including its Distdibuted Energy Resource (DER) or StandbyGenerator programs.

BILLING

The Customer will be billed according to the rate schedule the Customer has chosen consisting of: 1) Basic Facilities Charges;2) Energy Charges; 3) Demand Charges; and 4) any other applicable charges as specified in that rate schedule. Seginning withthe S rvice Date, and eidending for the first five (5) years of the ten (10) year Contract term, a qualifying Customer will receivean EDI Credit as follows:

1. EDI Credit: The Customer's monthly EDI Credit shall be determined by applying the applicable EDI Credit percentage(EDI Credit Percentage) as shown in paragraph 2 below to the sum of the Basic Facilities Charges, the DemandCharges and the Energy Charges as billed for that service under the Company's rate schedules 20, 21, 23 and 24.


E N E R G Y S O U T H C A R O L I N A , I N C .



E C O N O M I C D E V E L O P M E N T R I D E R (EDR)

( P a g e 3 o f 4)

2. E x c l u d e d from EDI C r e d i t c a l c u l a t i o n s a r e t h o s e rate c o m p o n e n t s ( C o m p o n e n t s ) w h i c h a r e c h a r g e d u n d e r o t h e r

r i d e r s o r a d j u s t m e n t s w h i c h e i t h e r a r e c u r r e n t l y in e f f e c t o r w h i c h m a y be a d d e d in t h e f u t u r e . T h e C o m p o n e n t s t h a t

are c u r r e n t l y in e f f e c t i n c l u d e : (1) A d j u s t m e n t f o r Fuel, V a r i a b l e E n v i r o n m e n t a l & A v o i d e d Capacity, and D i s t r i b u t e d

E n e r g y R e s o u r c e C o s t s ; (2) D e m a n d S i d e M a n a g e m e n t C o m p o n e n t ; (3) P e n s i o n C o s t s C o m p o n e n t ; and (4) Storm

D a m a g e C o m p o n e n t .

3. EDI C r e d i t P e r c e n t a g e s : T h e C u s t o m e r ' s EDI C r e d i t P e r c e n t a g e s h a l l be:

L o a d F a c t o r ( % )

M o n t h s 1 - 1 2

M o n t h s 1 3 - 2 4

M o n t h s 2 5 - 3 6

M o n t h s 3 7 - 4 8

M o n t h s 4 7 4 9 - 6 0

4 0 - 4 9

1 5

1 0

5 5 0

EDI CREDIT PERCENTAGES(%)

50-64 25 15 10 5 5

65 or greater 30 20 15 10 5

4. The appropriate EDI Credit Percentage will apply based on the Customer's actual load factor calculated at billing. The load factor will be calculated based on kilowatt-hours (kWh) used during the month divided by the product of the maximum 15-minute kW demand registered or computed times the actual number of billing hours in the month. The load factor used to determine the EDI credit for expansion loads will be the load factor for the total facility.

5. In the event that the Customer is no longer served under rate schedules 20, 21, 23 and 24 for any portion Customer's load, the EDI Credits will no longer be applicable to such portion.

6. EDI Credits will be terminated in the event that the Customer violates or no longer meets any of the terms and conditions associated with the rider or the application for service under it.


Should this rider be terminated for any reason prior to the conclusion of the initial term, the Company shall bill and the Customer shall pay, within thirty (30) days of the invoice date, the percentage of all EDI Credits previously applied by the Company to the Customer's invoices under this rider according to the following schedule:

Contract Year 1-5

6 7 8 9

10

%of Total Received EDI Credits 100% 80% 60% 40% 20% 10%

The Early Termination Charges under this rider are in addition to all other termination charges provided for in the Contract including but not limited to the facilities termination charge described in the Standard Conditions and the demand termination charge described in the Standard Conditions.

SPECIAL PROVISIONS

The Company will furnish service in accordance with its standard specifications. Non-standard service will be furnished only when the customer pays the difference in costs between non-standard service and standard service or pays to the Company its normal monthly facility charge based on such difference in costs.


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RIDER TO RETAIL RATES ECONOMIC DEVELOPINENT RIDER (EDR){Page 3 of 4)

2. Excluded from EDI Credit calculations are those rate components (Components) which are charged under otherriders or adjustments which either are currently in effect or which may be added in the future. The Components thatare currently in effect include: (1) Adjustment for Fuel, Variable Environmental 8, Avoided Capacity, and DistributedEnergy Resource Costs; (2) Demand Side Management Component; (3) Pension Costs Component; and (4) StormDamage Component.

3. EDI Credit Percentages: The Customer's EDI Credit Percentage shall be:

EDI CREDIT PERCENTAGES ('/o)

Load Factor ('/o)Months 1-12Months 13-24Months 25-36Months 37-48Months 474ox-60

40-491510550

50-6425151055

65 or greater302015105

4. The appropriate ED I Credit Percentage will apply based on the Customer's actual load factor calculated at billing.The load factor will be calculated based on kilowatt-hours (kWh) used during the month divided by the product of themaximum 15-minute kW demand registered or computed times the actual number of billing hours in the month. Theload factor used to determine the EDI credit for expansion loads will be the load factor for the total facility.

5. In the event that the Customer is no longer served under rate schedules 20, 21, 23 and 24 for any portion Customer'load, the EDI Credits will no longer be applicable to such portion.

6. EDI Credits will be terminated in the event that the Customer violates or no longer meets any of the terms andconditions associated with the rider or the application for service under it.

EARLY TERIIIIINATION CHARGES

Should this rider be terminated for any reason prior to the conclusion of the initial term, the Company shall bill and the Customershall pay, within thirty (30) days of the invoice date, the percentage of all EDI Credits previously applied by the Company to theCustomer's invoices under this rider according to the following schedule:

Contract Year1-5

6789

10

'/o of Total Received EDI CreditsIPPo/o

80 /o60'/o40'/o20'/o10'/o

The Early Termination Charges under this rider are in addition to all other termination charges provided for in the Contractincluding but not limited to the facilities termination charge described in the Standard Conditions and the demand terminationcharge described in the Standard Conditions.

SPECIAL PROVISIONS

The Company will furnish service in accordance with its standard specifications. Non-standard service will be furnished onlywhen the customer pays the difference in costs between non-standard service and standard service or oavs to the Comoanv its


E N E R G Y S O U T H C A R O L I N A , I N C .



T E R M O F C O N T R A C T


(Page 4 of 4)

Contracts shall be for an initial minimum term of ten (1 0) years, with the EDI Credits being available for a maximum period of five (5) years beginning with the Service Date. There shall be a separate Contract for each meter at each location. Contracts will survive termination or expiration of EDI Credits.

GENERAL TERrv,S AND CONDITIONS



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of10DOMINION ENERGY SOUTH CAROLINA, INC. ELECTRICITY


TERIIII OF CONTRACT

Contracts shall be for an initial minimum term of ten (10) years, with the EDI Credits being available for a maximum period offive (5) years beginning with the Service Date. There shall be a separate Contract for each meter at each location. Contractswill survive termination or expiration of EDI Credits

GENERAL TERiMiS AND CONDITIOi48

The Company's General Terms and Conditions are incorporated by reference and are part of this hider.

Effective May 22, 2019Pursuant to Public Service Commission of South Carolina Order No. 201 9-375

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