Aiming for a Zero-Carbon City
“Environmental capital, SAPPORO“2022. Mar. 9thZero Carbon City International ForumMayor, City of Sapporo
AKIMOTO Katsuhiro

1. Overview of Sapporo City
2. Zero-Carbon Initiatives
3. SDGs and “LEED for Cities andCommunities”

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)

Sapporo TopographyArea

1,121k㎡

North-South

45.4km
42.3kmSea of Japan

Ishikari

Tobetsu

Otaru
Ebetsu札幌駅前通

East-West■ Areas of Downtown

N

Akaigawa

Kyogoku-cho

E

Kita
Hiroshima

Eniwa

Kimobetsu

Chitose
DateS

About350ha

地下鉄南北線

SapporoW

地下鉄東豊線

路面電車

地下鉄札幌駅
地下鉄東西線

地下鉄大通駅

地下鉄すすきの駅

“average" is the average from 1991 to 2020

2. Zero-Carbon Initiatives

Zero-Carbon City Declaration
In February 2020, Sapporo City announced that it would aim to become a “zero-carbon city” that would
reduce greenhouse gases emitted from the Sapporo city area to virtually zero by 2050.

Climate Change Measures Action Plan
Plan to promote climate change measures for the construction of a sustainabledecarbonized society■ Goals for 2050
Reduce greenhouse gas emissions to virtually zero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 gas
emissions to virtually zero

600
537
400
20001990

2010

2016

2030

2050
［Year］

Effective use of Energy→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.
● 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.

エネルギー転換
Energy Conversion→Active use of Renewable Energy●Introducing Renewable Energy to Municipal Facilities●Guide Citizens and Businesses to use Renewable Energy Power

Clock Tower
100% Renewable Energy

Logic behind & measures for CO2 reduction （Downtown）■ Acceleration of redevelopment
downtown■ Sapporo City and Downtown
Sea of Japan

100％
75％

City of Sapporo

1972 Winter Olympics

50％

About350ha(Sapporo City Limits)

Time to renew buildings【都心の建替え】constructed for the25％(Areas of Downtown)

Now

2020

2030

2050

■ CO2 reduction goal
Past
recordTargetValue

878,600 t-CO2 / year
Implement CO2
reduction measures alongside
the peak in building renovations
from 2020-2030

80％
reductionfrom 2012

Step①Transition buildings to low-energy

Step②Use District Heating and Cooling

Step③

Use renewable energy[roughly 30-50％ reduction][roughly up to 20％ reduction][10～30％ reduction]

175,700 t-CO2/ year

2012

2050

Action（STEP①）City development control & adjustment
Making rules to promote initiatives for sustainable city
development in line with building renewals.

Action（STEP②）
Low-carbon and Resilient Heat
Maintenance of cold/hot water pipe network andintroduction of cogeneration system to promote lowcarbon heat utilization that is unique to snowy cold
regions

Current Status of District Heating in Central Sapporo

Chuo Energy Center

Sapporo Energy Supply Public CorporationEnergy 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

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

3. SDGs and “LEED for Cities andCommunities”

SDGs “Future City” in Japan■ Selection as an SDGs “Future City”
・The Cabinet Office publicly invited Japanese cities to implement initiatives working
towards achieving the SDGs, and chose cities nation-wide which have proposed superior
initiatives
・29 cities nation-wide including Sapporo were chosen as “Future Cities” on June 15, 2018

Towards comprehensive/ integrated urban development with a focus on
the environment, economy, and society
In order to promote city promotion based on objective evaluation based on
world standards,
Sapporo City has decided to obtain “LEED for Cities and Communities”
certification.

SDGs “Future City” Selection
Certificate Awards Ceremony（June 2018）

LEED for Cities and Communities

Sapporo City is the LEED for cities with the highest score in the world at the time of certification confirmation(January 27, 2020)

City Development towards 2030, 2050
■ Towards achievement of the global common goals of the SDGs and the Paris Agreement

Downtown

Cities nationallyandinternationally

Entirety of Sapporo

THANK YOU