overview of kitakyushu smart community pilot project · © fuji electric co., ltd. all rights...

© Fuji Electric Co., Ltd. All rights reserved.

Overview of Kitakyushu Smart Community Pilot Project

November 19, 2014

Masao Nakamura

Fuji Electric Co., Ltd.

© Fuji Electric Co., Ltd. All rights reserved. 2

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


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


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


RF mesh network

Concentrator

Ethernet

CEMS

Power Poll

Smart meter

System configuration of Smart meter

Wi-Fi

In-home display


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


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)


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


• 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.


•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


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


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.


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


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.

overview of kitakyushu smart community pilot project · © fuji electric co., ltd. all rights...

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