“A CLEAN ENERGY FUTURE FOR THE UNITED STATES: THE CASE OF GEOTHERMAL POWER”. Testimony by the President of Iceland Olafur Ragnar Grimsson at a Senate Hearing Committee on Energy and Natural Resources”. US Senate. 26 Sept. 2007 – It is flexible and can be tailored to needs accordingly. This is a clear shift from the public debate, which has been preoccupied by “big solutions” in the field of energy, centred on coal, oil and nuclear programmes. In many places, geothermal energy can provide a “big” solution, but in many others it can serve a single city, large industries, a small town or as little as a single household. This flexibility can bring significant advantages.