I do not know if you have had any hospital experience but the enviromental controls are vital to its function. Talk about putting it to the test. A backwards country like Mexico from what I understand, has had a great deal of success with geothermal power. So has Hawaii. The hoover dam has been feeding California and nevada and Arizona for years very successfully.
Tidal energy needs to be implemented, thats nonstop free power.
30 degrees F. and get a positive gas pressure from it. I had a home with solar hot water and it worked great. The alternatives can and are supplying plenty of power.