The geothermal icon is represented with a building, but one part of the building will have higher top where smoke will come out of. The other part of the icon is there will be arrows coming from the bottom of the building or the ground and into the building.
私たちは ___INSERT_DATE_HERE___ にこのアイデアを受け取り、 January 29, 2013 ___INSERT_THE_DATE_HERE___ にアイコンを作成しました。 April 04, 2013
Icons for green/renewable energy sources. The two I'm looking for are a Wind Turbine and Solar Panels. Other possible ideas are Hydroelectric, Geothermal, and Biomass, but those icons may be more difficult to portray with a simple icon.