30.11.2015

Making Room for a PV Array

An unshaded south-facing roof is valuable real estate — too valuable to waste on solar thermal collectors Images:

Compared to a photovoltaic(PV) Generation of electricity directly from sunlight. A photovoltaic cell has no moving parts; electrons are energized by sunlight and result in current flow. system, a solar hot water system yields very little energy per dollar invested. I presented that argument in a 2012 article called "Solar Thermal Is Dead." Two years later, in 2014, an economic comparison between these two solar technologies showed a stronger tilt than ever before in favor of PVPhotovoltaics. Generation of electricity directly from sunlight. A photovoltaic (PV) cell has no moving parts; electrons are energized by sunlight and result in current flow, leading me to write a follow-up article called "Solar Thermal Is Really, Really Dead."
Source: viaexpo.com

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