Earth Hour 2009 was from 8:30 p.m. to 9:30 p.m. local time, March 28, 2009. 88 countries and 4,088 cities participated in Earth Hour 2009, ten times more cities than Earth Hour 2008 had (2008 saw 400 cities participate).[4] One billion "votes" was the stated aim for Earth Hour 2009,[5] in the context of the pivotal 2009 United Nations Climate Change Conference.
Among the participants in 2009 was, for the first time, the United Nations headquarters in New York City.[6] The U.N. conservatively estimates that its participation will save $102 in energy. [7]
Reports show that the United States topped the Earth Hour participation with an estimated 80,000,000 people, 318 cities and 8 states participating. The Philippines saw participation from 647 cities and towns or over 15 million Filipinos were estimated to have joined in the hour-long lights-off at 8:30 - 9:30 PM local time. This was followed by Greece with 484 cities and towns participating, and Australia with 309. [8][9]
The Canadian province of Ontario, excluding the city of Toronto, saw a decrease of 6% of electricity while Toronto saw a decrease of 15.1% (nearly doubled from 8.7% the previous year) as many businesses darkened, including the landmark CN Tower. [10]
Swedish electricity operator Svenska Kraftnät recorded 2.1% decrease in power consumption from its projected figure between 8 p.m. and 9 p.m. The following hour, the corresponding number was 5%.[11] This equals the consumption of approximately half a million households out of the total 4.5 million households in Sweden.[12]
According to Vietnam Electricity Company, Vietnam electricity demand fell 140,000 kWh during Earth Hour.
The Philippines was able to save 611 MWh of electricity during the time period, and is said to be equivalent to shutting down a dozen coal-fired power plants for an hour.
2009 Participants
Asia
Bahrain
Brunei
China
Hong Kong
India
Indonesia
Kuwait
Lebanon
Macau
Malaysia
Maldives
Nepal
North Korea
Pakistan
Philippines
Singapore
Japan
Jordan
Kazakhstan
South Korea
Thailand
Taiwan
United Arab Emirates
Vietnam
Africa
Botswana
Egypt
Kenya
South Africa
Zambia
North America
Bermuda
Canada
Greenland
Mexico
United States
Oceania
Australia
Fiji
French Polynesia
New Zealand
Papua New Guinea
South America
Argentina
Bolivia
Brazil
Chile
Colombia
Costa Rica
Ecuador
El Salvador
Guatemala
Honduras
Mexico
Nicaragua
Panama
Peru
Puerto Rico
Trinidad and Tobago
Venezuela
Europe
Albania
Armenia
Austria
Azores
Belarus
Belgium
Belize
Bosnia and Herzegovina
Cyprus
Croatia
Denmark
Bulgaria
Estonia
Faroe Islands
Finland
France
Georgia
Germany
Greece
Hungary
Ireland
Israel
Italy
Latvia
Macedonia
Malta
Moldova
Montenegro
Netherlands
Norway
Poland
Portugal
Romania
Russia
Serbia
Spain
Sweden
Switzerland
Turkey
Ukraine
United Kingdom
Vatican City
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