Building and hydrogen energy initiatives
for zero carbon city in Sapporo

2022. Mar. 10thZero Carbon City International ForumDirector,Eco-City Promotion Department
Environmental Bureau,City of Sapporo

SUGAWARA Sachio

1. Overview of Sapporo City
2. Energy measures for buildings
3. Efforts for hydrogen energy

1. Overview of Sapporo City

Sapporo’s ProfileHokkaido

 Capital of Hokkaido, the northernmost of Japan’s 47
prefectures
 The fifth largest city in Japan Hosted the 1972 Winter Olympics, the first ever held inAsia

1,050 kmPopulation

1,975,065 (as of October 1st, 2020)

Area

1,121 km² (432 sq mi)
Portland, U.S.A. (since 1959)

Flight Time
1h 30min(Tokyo⇨Sapporo)

Munich, Germany (since 1972)
Sister Cities

Shenyang, China (since 1980)
Novosibirsk, Russia (since 1990)
Daejeon, Korea (since 2010)

“average" is the average from 1991 to 2020

Climate Change札幌市気候変動対策行動計画
Measures Action Plan

● Through Climate Change Measures, We will contribute to solving various issues such as securing
energy in the event of disaster, revitalizing industrial and economic activities, and extending healthy
life expectancy.
● This plan also aims to reduce greenhouse gas emissions by 55% in 2030 compared to 2016.
［10,000t-CO2］
1,400

Greenhouse gas emissions
1,193

1,200
1,000 934

■ Goals for 2050

977

55％ reduction
from 2016

800

Reduce greenhouse gasemissions to virtually zero

600
537
400
20001990

2010

2016

2030

2050
［Year］

2. Energy measures for buildings

Reducing Heating Energy Consumption●Detached houses→ Promoting the spread of the “Sapporo version of next-generation housing” ,which is a heat insulation and airtight standard set by the city of Sapporo.
Insulation and airtightness level of"Sapporo version of next-generation housing"Nes housing
grade

Primary energy
Skin heatconsumption
performance
Heating +(UA Value)[W/㎡・K] Whole house
ventilation

Top runner

0.18 or lessHigh level

0.22 or lessStandard level

0.28or less

Basic level

0.36 or less

Minimum level

0.46 or less

35% or lessGrade 545% or less
60% or less
75% or lessGrade 4

90% or lesscorresponding
gap area(C Value)[㎠/㎡]
0.5 or less

1.0 or less
1.0 or lessEx) High level house
Wall thickness
205mm

Triple glass+ resin sash

Reducing Heating Energy Consumption● Apartment houses and buildings→ Subsidizing the design cost for the construction of apartment houses and buildingsthat can significantly reduce energy consumption by improving heat insulation
performance and introducing solar power generation.
Animal Welfare & Management Center

Current Status of District Heating in Central Sapporo

Chuo Energy Center

Sapporo Energy Supply Public Corporation
Energy Center

Use of Wood Biomass

・Heating 614J／hG

Use of Snow Cold

46 Energy Center・Heating 82GJ／h・Cooling 59GJ／hDocho-minami Energy Center
Gas Engine CGS・Heating 15GJ／h・Cooling 5.5GJ／h・Power generation 315kW

Sapporoeki-minami Energy Center

Gas Engine CGS・Heating 38GJ／h・Cooling 21GJ／h・Power generation 1,270kW
Gas Turbine CGS

Akarenga-mae Energy Center・Heating 170GJ／h・Cooling 154GJ／h・Power generation 9,630kW

Sosei Energy Center
Gas Engine CGS・Heating 29GJ／h・Cooling 24GJ／h・Power generation 700kW

Very hot water Pipe
Hot water/steam Pipe
Cold water Pipe
Thermal Pipe network
extension: about 45km

Gas
Engine CGS
ガスエンジンCGS・Heating 34GJ／h・Cooling 11GJ／h・Power generation 1,400kW

3. Efforts for hydrogen energy

Utilization of hydrogen derived from renewable energy
Production

Wind-powergeneration

Utilization of surplus
electricity ofrenewable energy

Effectively utilize thepotential of renewableenergy in Hokkaido

Storage

Renewable energy power generation area

Solar panel

Stable hydrogenproduction andestablishment of
supply system

Hydrogenstorage baseHydrogenproduction utilizing
renewable energy

Local energy andeconomic circulation

Transport

Pipeline
FC truck

Demand area

Sapporo City
Hydrogen Station

Use hydrogen produced fromsurplus electricity of renewableenergy in Hokkaido and byproduct hydrogen at
consumption areas

Choosing atransportation
system that suits
costs andapplications

Building / industrial fuel cells

Household fuel cell

Fuel Cell Vehicle (FCV)

Temporarystorage

FC truck

FC busFCVTHANK YOU