project zenergy lighting management system · project zenergy lighting management system...
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Project Zenergy Lighting Management System
Presentation to Eskom DSMProject Developer Zenergy SA (Pty) LtdPrepared By Tatenda ZisoDate November 2010
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Content
• Project Objectives• Project Developer Details• Project Profile• Load Profile Example• Savings Profile• How it works• Installation of Zenergy• Benefits• Proposal
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Objective
• Project Evaluation Committee’s (PEC) – Zenergy SA (Pty) Ltd requests approval of and recommendation to expand the
Zenergy Savings Program and implement its Lighting Management System that reduces energy demand and consumption of lighting loads for Clients.
• Eskom S O P Criteria– Savings Incentive Payment : R0.34/kWh– Maximum Energy Savings : 4 160 000 kWh p.a– Duration of Implementation : immediate to 36 Months– Hours of Measurement : 4160 hours p.a
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Zenergy Objective
• Current Project Achievements– Savings (Ave Monthly) : 2.1 MW– Savings (Annual) : 11.4 GWh– Hours of Measurement : 5400 hrs p.a
• Potential Savings Under Eskom S O P Criteria– Savings (Ave Monthly) : 2.1 MW– Savings (Annual) : 8.6 GWh– Hours of Measurement : 4160 hrs p.a– Duration of Implementation : immediate
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Project Developer DetailsName of Project Developer Zenergy SA (Pty) LtdCompany Registration Number 1996/013329/07ESCO Registration Number 11046145Postal address P O Box 41671
Craighall2024
Street address 211 Barkston Street BlairgowrieRandburg
Telephone (011) 781 7015
Fax (011) 781 7106
E-mail [email protected]
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Project Profile
• The Zenergy Savings Program constitutes multiple installations for Clients (existing and prospective) and implemented at various sites countrywide on a 24/7 basis
• Incentive Payment claim to be based on actual savings for specified hours only. – 6am to 10pm weekdays only, Maximum of 4160 hours p.a.
• All savings claimed are subject to Measurement & Verification as stipulated by SOP guidelines
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Project Profile• Zenergy SA (Pty) Ltd installs and maintains all the Lighting
Management System Units for duration of contract
• Initial managed lighting load of 488 Units– 12.4 MVA
• Total Energy Consumption before commissioning units – 4.4 GWh p.m.
• Current average savings on managed load– 22 % Energy savings – 24 % Demand savings
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Project Profile
• Existing client base Coded
• Actual names to be disclosed after SOP agreement has been signed
• Projects granted DSM status in existing client base with little or no additional savings
– Electronic Controll Geared Lighting – Induction Lighting
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ClientsName Units Savings kWh p.m. Savings kVA p.m. % kWh SavingsC001 7 10 705 30 26%C002 38 117 465 259 18%C003 21 27 298 119 23%C004 22 10 078 30 19%C005 9 26 023 88 20%C006 33 35 282 175 23%C007 106 326 950 1037 24%C008 15 19 058 77 22%C009 23 18 907 85 20%C010 43 110 451 302 22%C011 7 11 712 20 24%C012 8 27 816 41 36%C013 8 91 792 159 31%C014 111 18 585 59 24%C015 3 12 795 23 28%C016 18 39 716 230 19%C018 15 38 919 121 23%C019 9 4 094 8 15%Total 496 947 645 2861 22%
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Savings per Project
Region UnitsActual Savings
kWh p.mQualifying Savings
kWh p.m
Central 246 436432 330702
Eastern 77 91307 69187
North West 26 67681 51285
Northern 73 142387 107892
Southern 18 50014 37898
Western 48 159824 121105
488 947645 718070
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Energy Savings per Project
0 50000 100000 150000 200000 250000 300000 350000 400000 450000 500000
Central
Eastern
North West
Northern
Southern
Western
Savings kWh p.m,
Savings kWh
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Projected Incentive Payment
Rebate R 0.34Hours pa 4160
Sustainability Period
+36 months
ProjectSavings kVA
Savings kWh
Adjusted Savings kWh p.m
Incentive Payment p.a.
Incentive Payment -3 yrs
Central 1257 436432 330702 R 1 349 265 R 4 047 796Eastern 307 91307 69187 R 282 284 R 846 853North West 199 67681 51285 R 209 242 R 627 725Northern 475 142387 107892 R 440 201 R 1 320 604Southern 168 50014 37898 R 154 624 R 463 872Western 454 159824 121105 R 494 109 R 1 482 326Total 2861 947645 718070 R 2 929 725 R 8 789 176
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Lighting Load Profile Example
• Office Block with magnetic ballast fluorescent lamps
• Power recorder (V, A, kW, kVA) installed over a 7day 24hr period
• Voltage recordings– Maximum 235V– Minimum 224V– Average 230V
• Lux levels comply with OSHACT
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0.0
10.0
20.0
30.0
40.0
50.0
60.0
kVA
Dem
and
Time (hrs) - Seven Day Week
•Zenergy Unit Inactive
Lighting Load Profile – Before
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•Zenergy Unit Active
Lighting Load Profile – After
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Lighting Load Profile
0.0
10.0
20.0
30.0
40.0
50.0
60.0
kVA
Dem
and
Time (hrs) - Seven Day Week
kVA Inactive
kVA Active24% kVA Savings22% kWh Savings
• “Drake & Skull Independent Test & Report”
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Zenergy Lamp Life
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Cost of Running Zenergy
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Zenergy On
R 0.00 R 50 000.00 R 100 000.00 R 150 000.00 R 200 000.00 R 250 000.00 R 300 000.00 R 350 000.00 R 400 000.00 R 450 000.00
S001
S002
S003
S004
Cost of Running Zenergy
Under Zenergy Installation Before Conservation Measure
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Zenergy vs ECG Lighting
R 0.00 R 50 000.00 R 100 000.00 R 150 000.00 R 200 000.00 R 250 000.00 R 300 000.00 R 350 000.00 R 400 000.00 R 450 000.00
S001
S002
S003
S004
Cost of Running Zenergy vs ECG
Electronic Balasted Installation Under Zenergy Installation Before Conservation Measure
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How it Works
• Zenergy reduces energy and demand consumption as well as corrects power factor
• The Zenergy unit intelligently controls voltage to discharge lighting loads from the supply
• Effected by transforming voltage down to the required level using electromagnetic induction
• Boot-up process– Fail-safe (by-pass mode)-100% Voltage– Boost Mode – 95% Voltage – Selected Economy Mode – 92.5%/90% Voltage
• Constantly monitors the mains input voltage and lighting loads• Adjusts output voltage electronically to accommodate voltage sags &
swells and increased load
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Installation
• Zenergy unit is designed to fit in series with supply to Lighting Load– “In-line” between the main busbars of the Distribution Board (See
diagram below)
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Installation
Unit installed on concrete wall with rawl
bolts or on unistrut frame on brick wall
Trunking
Lighting Contactor
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Benefits
• Controls start up and warm up times to meet discharge lamp operating specifications.
• Boosts voltage in the event of sag in the supply
• Saving of between 17 % - 25 % of operating costs
• Cost Savings Calculated – Measured kWh usage x rate per kWh– Measured kVA(kW) Demand x rate per kVA(kW)
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• Improves Power Factor on discharge lighting circuits
• Lamp Efficiency– Optimum efficiency by improved efficacy Lumens/Watt increases
• Lamp Life– Lamp life increases by up to 30%
• Increase life of operating gear.
• Reduced maintenance costs
Benefits
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Project Process
• Audit of environment – Detailed Lighting Energy Audit
• Project savings profile after installation of units
• Client Commitment to install unit/s for the site/s
• Initial minimum contract period - 36 months with renewal options
• Planned roll-out to other suitable sites
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Zenergy Proposal
• Seek PEC Approval of Zenergy Savings Program under SOP– Existing clients– Prospective clients
• Eskom contract to purchase proven Energy Savings in terms of the SOP
• On-going identification and addition of future projects to Program
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Thank you!!Questions?