How is electricity made? Wherefrom do we obtain domestic hot water? And how can we ensure, that this will ever be so? This guide explains which sources are applied to produce energy. The main focus is laid on the sources that are constantly provided respectivelly those which are renewable within a short period (e.g. hydro power, solar and wind energy, etc.) versus those which emerged in thousands of years and are consumed by mankind ruthlessly (e.g. petrol, crude oil, natural gas). Further described, how energy sources are transformed into useful energies (e.g. hot water, electricity, fuel, etc.). Moreover this handbook obtains suggestions how habitats should be constructed and isolated to avoid useless loss of power. Alltogether this guide supports family men as well as engineers in their approach of planning a house or even districts in order to guard against cost increases of raw materials and or electricities. In short form: How do I use the grid and get independent though? Good luck with your individual investigations.

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