There are several ways in which a swimming pool can be solar powered. Not only can the water be heated by solar power, but you can also use free energy from the sun to light the pool and to operate the pool’s filter pump. In this Quezi guest post, Rickey Juneau answers some questions about swimming [more...]
Photovoltaic cells directly convert sunlight into electricity. In the past few decades, this elegant source of solar energy has become more efficient, cheaper, and more versatile in how and where they can be put to use. As the world ever-so-slowly weans itself from a dependence on fossil fuels, solar power from PV cells will play [more...]
Green energy is a somewhat nebulous term, but we’ll take it to refer to energy sources that are carbon neutral, and are replenished naturally within timescales of the order of a human lifetime. That gives us quite a few sources of green energy. Hydro power harnesses the energy of moving water. This can take the form [more...]