Photovoltaics (Solar Panels)

Photovoltaic Systems (PVs)

Photovoltaic systems are products that control the direct conversion of sunlight into electricity. PVs are made from various types of semiconductor materials. The cells convert the sunlight into direct current (DC) electricity, which is then converted into alternating current (AC). The system then lets you use the electricity right away, store it in batteries, or sell it back to the system for money (town/agency permitting).

PVs can either be in a multicell array, or built into other materials.

• In an array, the PV is constructed in frames and attached to an area with good solar exposure.
• Note: The IBC requires that PV panels comply with the general code requirements for rooftop materials and structures. This includes fire resistance, wind resistance, material standards, and installation. The systems must also comply with the International Fire Code.
• Note: PV technology is constantly increasing, improving, and changing — and manufacturers now provide 20+ year warranties. Many localities will now also provide tax incentives to help offset the cost.

Net Metering: The requirement that a utility pay and charge the same rate regardless of which direction the electricity is flowing.

• This allows people to sell electricity back to the grid, without being compensated at a lower value.

3 Main Types:

1. Crystalline (Monocrystalline)

• Most widely used and produce the most power - also the most expensive.