Solar Photovoltaic — PV cells (often referred to as “solar cells”) convert sunlight directly into electricity. Solar cells are connected together to form solar panels. Multiple panels together form the solar arrays commonly seen on roofs and as free-standing installations.
Solar Thermal — A solar hot water system typically consists of a collector, a storage tank, piping and sometimes valves, controls and pumps. In freezing climates like New York’s, the systems often use a non-toxic glycol as the collector fluid and a heat exchanger to transfer the thermal energy to the house drinking water system
Passive Solar — heating and lighting buildings directly from sunlight. In passive solar buildings, windows, walls, and floors collect, store, and distribute solar heat in cold seasons; Other structural factors such as awnings and overhangs shade the building when the weather is warm.