Читать книгу The Self-Sufficiency Handbook - Alan Bridgewater - Страница 61

Currently, there are many questions about PV systems. Are they reliable? How long will they last? Will they do the business in a cool climate? Their use in domestic settings alongside the more trusted solar collectors is growing. All that happens, in effect, is that small PV panels are being used to provide the electricity that sets the various pumps and controls in motion.

An evacuated tube (vacuum) solar water-heating system.

Photovoltaic panels convert sunlight into energy.

An individual photovoltaic cell.

These basic systems are not very sophisticated (in all fairness, PV systems are capable of much more), but they are very neat. As production costs come down, more PV products are coming onto the market.