"Free energy" for individual using is economical nonsense
economical effectiveness of the energy from renewable sources: photovoltaic batteries, heat solar collectors, wind devices, heat pumps, ecofuels
After we have determined the idea of own independent lifestyle creating, we started to investigate possible variants of constructions and equipment for the country house, that would be maximal independent from external unnatural sources of energy and foodstuff.
As for the energy source for home cares and vegetable cultivation was chosen sustainable energy sources, our attention was paid to energy renewable sources - photovoltaic batteries, thermal solar collectors, wind devices, heat pumps, ecofuels.
First approximate calculations have shown, that using of ready devices for housewarming and water heating, that are using energy from sustainable sources, are economical nonsense. At least, using of "free energy" at bulgarian conditions is much more expensive than coal using and even electric heating by the night tariff through heat accumulated electrical heaters.
By ours approximate calculations, recoupment of heating systems for the house based on eco smart intelligent computer energy saving and anti-global-warming systems is from 8 years to eternity.
We couldn't find at all a small effectualness green-house for organic vegetable cultivation, that would satisfy our requests and bulgarian climate conditions and with some reasonable price. For collecting of some especially valuable kinds of orchid, they may be great, but to culltivate dill they are economical inexpedient. In case of using such greenhouse, price of dill is approaching to price of gold.
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