overview of kitakyushu smart community pilot project · © fuji electric co., ltd. all rights...
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© Fuji Electric Co., Ltd. All rights reserved.
Overview of Kitakyushu Smart Community Pilot Project
November 19, 2014
Masao Nakamura
Fuji Electric Co., Ltd.
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Contents
1.Outline of Kitakyushu smart community pilot project
2.Demand Response (DR) Filed test
2-1 Test for Small scale customers
2-2 Test for Large scale customers
3.Conclusions
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1.Outline of Kitakyushu smart community pilot project
• Smart community field experiment
• Goal is to save energy 20% and to reduce CO2 50%
• 67 companies and organizations participating
• 5 years from 2010 to 2014
• Location is Higashida area
• Demand Response (DR) with Dynamic Pricing
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Overall configuration
Special energy zone
Cogeneration
Fuel Cell
G Storage
battery
EV Heat supply
Hydrogen
Solar power
Smart meter FEMS
BEMS
BEMS
Community Energy
Management System (CEMS)
Smart PCS
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RF mesh network
Concentrator
Ethernet
CEMS
Power Poll
Smart meter
System configuration of Smart meter
Wi-Fi
In-home display
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2.DR Field test
Dynamic Pricing method based on Critical Peak Pricing (CPP)
An example of Electricity price
Level 1 (¥15/kWh)
Level 2 (¥50/kWh)
Level 3 (¥75/kWh)
Level 4 (¥100/kWh)
Level 5 (¥150/kWh)
Price without CPP
DR with Dynamic Pricing
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Test targets are two types of customers
Large scale customers
(factory, building ,shopping mall)
•DR Group with EMS (1 customer)
•DR Group without EMS (several customers)
Small scale customers
(households)
•DR Group without HEMS (69 households)
•No DR Group without HEMS (69 households)
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June July Aug. Sep.
No DR Level1 30 16 11 25
DR
Level 2 0 4 4 2
Level 3 0 4 5 1
Level4 0 4 5 1
Level5 0 3 6 1
The number of DR days
2.1 DR test for small scale customers
• Electricity price is changed in the afternoon.
• DR is activated if maximum temperature forecast for the following day is
higher than 30 deg C.
• Total number of DR test day is 40.
Electricity price in Summer
(from June to Sep.)
Level 1 (¥15/kWh)
Level 2 (¥50/kWh)
Level 3 (¥75/kWh)
Level 4 (¥100/kWh)
Level 5 (¥150/kWh)
Price without CPP
Condition of DR test for small scale customers
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• Electricity price at level 5 is ¥150/kWh.
• Load of “DR” is lower than that of “No DR” during peak time.
• At the mid night, that relation is opposite.
• DR shifts the load from expensive time to inexpensive time.
Test result: Comparison of 2 groups at Level5
Load
Peak hours
DR ( Level 5)
No DR
Comparison of averaged road curves between “DR” and “No DR”
on August 20th in 2012
Time
DR with Dynamic Pricing is effective for load saving and load shifting.
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•Reduction ratio was analyzed by Prof. Ida in Kyoto univ.
•Load of over level 2 is lower than that one of level 1.
Test result: Load Reduction ratio of DR group
Load Reduction Ratio at each level of DR
in summer of FY2012
The more expensive Dynamic Price is set,
The further load is saved
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2-2 DR test for large scale customers
Electricity price = Basic price * Price ratio
• At some level Electricity price is higher than basic price
• At some level Electricity price is lower than basic price
Hour 0~7:30 7:30~9:30 9:30~12 13 14 15 16 17~23
Level 0 1 1 1 1 1 1 1 1
Level 1 1 0.8 1 1 1 1 1 1
Level 2 1 0.8 1 1.5 1 1.5 1 1
Level 3 1 0.8 1 1 1.5 1 1.5 1
Level 4 1 0.8 1 1.5 0.8 1.5 0.8 1
Level 5 1 0.8 1 0.8 1.5 0.8 1.5 1
Level 6 1 0.8 1 1.5 1.5 0.8 0.8 1
Level 7 1 0.8 1 0.8 1.5 1.5 0.8 1
Level 8 1 0.8 1 1 2 1 2 1
Level 9 1 0.8 1 1 3 3 1 1
Level 10 1 0.8 1 1 0.8 1 0.8 1
Level 11 1 0.8 1 1 0.7 1 0.7 1
Level 12 1 0.8 1 1 0.8 0.8 1 1
Level 13 1 0.8 1 1 0.7 0.7 1 1
Condition of DR test for large scale customers
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Load without EMS
(Load is changed manually)
Load with EMS
(Load is changed automatically)
• Electricity Price at Level 9 is 3 times higher than basic price
• Load without EMS didn’t changed. Load with EMS reduced during peak time.
• Large scale customers ware so busy working that they are not able to reduce load manually.
Level 0
Level 9
peak time
Level 0
Level 9
peak time
Load reduced
Test results: Comparison of 2 groups at level 9
It is necessary to use EMS in order to reduce load at peak time.
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Load without EMS
(Load is changed manually)
Load with EMS
(Load is changed automatically)
• Electricity price at Level 13 is 0.7 times lower than basic price
• Load without EMS didn’t changed. Load with EMS increased during peak time.
Level 0
Level 13
peak time
Level 0
Level 13
peak time
Load increased
DR is also able to increase the load
Test result: Comparison of 2 groups at level 13
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3. Conclusions
14
1. DR field test is conducted at Kitakyushu project
2. Test for Small scale customers:
(1) DR with Dynamic Pricing reduced peak demand by 9% to13%
The more expensive Dynamic Price is set, the further load is saved.
(2) DR shifts Load from expensive time to inexpensive time.
(3) DR with Dynamic Pricing is effective for load saving and load shifting.
3. Test for Large scale customers:
(1) Load with EMS was shifted from expensive time to inexpensive time
Load without EMS wasn’t shifted.
(2) Large scale customers are so busy working that they are not able to
reduce load manually.
(3) It is necessary to use EMS in order to reduce load at peak time.