I am stuck on an island and i have to transfer energy using renewable sources. e.,g, biomas, solar energy, geo

Question

I am stuck on an island and i have to transfer energy using renewable sources. e.,g, biomas, solar energy, geothermal energy, hydro-electricity energy, tidal energy, wind energy, wave energy. I need to design a way of supplying how water for washing, and supplying heat/ energy to cook food, also energy to heat huts

Note: There are hot springs on the island and a forest and cold water sourounding it.

Also how can solar energy from the sun be transfer to electricity to run a refrigerator

Answer 1

You can create energy to burn (methane gas) from biomass for cooking and heating (although it would be easier to burn wood from the forest for space heating) by making a biogas digester (Anaerobic Digester).

Simply pipe the biogas to your cooker, and light it!

The YouTube video link below provides a review of an ebook on how to make a biogas digester, and a web page to download the ebook. (Scroll right to bottom of page.).

Answer 2

If you have a hydroelectric facility, where's the problem? If you don't, where did the refrigerator  come from???