The basics of solar installations
Types of solar installations
Solar photovoltaic
: Solar photovoltaic (PV) installations are the most widely applied solar technology. PV panels capture the sun’s energy and transform it into electricity. Many utility districts let you sell excess electricity, a program called "net metering.” With net metering, your utility meter will run backwards when the electricity your system generates exceeds the electricity you are using -- giving you retail value for the unused electricity.
Solar hot water: While not as recognizable as solar PV, solar hot water (SHW) systems harness the sun’s energy up to three times more efficiently than PV systems. Rather than provide electricity, SHW systems use the sun’s natural energy to provide hot water throughout your facility. Using SHW rather than traditional electric water heating can save up to 60 percent on water heating costs.
Average solar project price range
The costs of solar projects vary depending on the type and scale of the project. There are many state, federal, and utility-run incentive programs thatl help reduce the cost of these projects. These incentives range from tax breaks to rebates on installation expenses.
Some solar installers let you lease solar panels for your roof, and your organization pays only for the energy it uses at a below-market rate.
To get an accurate price estimate for a PV or SHW installation project, contact a contractor in your area.
Average savings
Estimating savings from a solar installation is relatively straightforward. A contractor performs a 360 degree scan of the installation site and provides you an estimate of annual energy generated.
There are additional indirect financial benefits as well. According to the Appraisal Journal and the Department of Energy, a solar electric system can increase your home’s value by up to $20 for every $1 in annual utility bill savings.
To learn how to calculate energy and carbon savings for solar projects, click here.
Level of difficulty (to implement)
Medium. Installing PV and/or SHW systems require a skilled contractor and relatively high initial investment in capital.
Examples of solar projects on the Green Project Listing Site
More solar resources
- National Renewable Energy Laboratory: solar photovoltaic
- National Renewable Energy Laboratory: solar water heating
- Department of Energy
- Office of Energy Efficiency & Renewable Energy at the DOE
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