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What is a PV panel?
A PV solar panel, referred to in the industry as a solar module, is constructed by connecting photovoltaic cells (or PV cells) to produce electricity. The cells are a semiconductor-based technology that converts solar radiation into direct current (DC) electricity.

What are the benefits of using PV solar systems? 
By utilizing PV solar cells, home or business owners are able to generate electricity from sunlight saving money and avoiding the harmful pollution generated by traditional methods of generating electricity. This solar generated energy is used to offset or replace power that would normally be purchased from the utility.

How does shade affect the performance of a PV solar system?
One of the leading causes of power loss in a solar PV system is when part of the panel or array becomes shaded. If any individual cells performance is degraded by shade, the performance of the entire panel will fall to a point relative to the worst performing cell. Likewise, in a string of panels, the entire string suffers performance reduction to that of the lowest performing panel.

How much roof space does a PV system need?
A typical solar panel of 200Wp will measure about 17 square feet. Depending on installation factors, the required square footage of roof space will be somewhat larger than simply the area of the panels.

Do solar panels have to be installed on the roof?
Solar panels can be installed on the roof, on the side of a building, on the ground or on a pole. The most cost effective installation will usually be on a roof, but if roof or shading conditions prevent the use of the roof we can help you review other options.

Do installed solar panels have to face a southerly direction?
Facing south at the correct angle of elevation will provide the best performance (most KWh per unit of investment) however solar panels can also be installed facing towards the east or west as long as proper considerations are made. Solar panels should not ever face north.

What about cloudy days?
PV solar panels will generally produce electricity at a reduced rate under cloudy conditions. Severe clouds will interrupt the production of power. 

What are the maintenance requirements or other costs for a PV system?
For a grid-tied system where no batteries need be replaced, there is typically little or no maintenance required. You might consider a periodic inspection to ensure that the panels remain clear of leaves, dirt, bird droppings etc. Other than that, unless there is an equipment failure there should be no maintenance required.