Photovoltaic (Solar Electric) Systems
Making Electricity When the Sun Shines
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Photovoltaic (Solar Electric) Systems, including:
- Design and build strategies
- Necessary codes
- Application how-tos
- Using materials
Rebates and tax credits make these systems more affordable
Most installations in the U.S. are grid-tied, meaning the house can draw power from either the utility grid or its 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. array. When the PV cells aren't producing enough power, the grid makes up the difference. When the array makes more than the house consumes, the electricity flows into the grid.
Off-grid systems, which require a battery bank to store power, are more expensive and more complicated.
PV modules are rated by ...
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