What Is Net Metering?
Net metering is a billing mechanism that credits solar energy system owners for the electricity they add to the grid. For example, if a residential customer has a PV system on the home's rooftop, it may generate more electricity than the home uses during daylight hours. If the home is net-metered, the electricity meter will run backwards to provide a credit against what electricity is consumed at night or other periods where the home's electricity use exceeds the system's output. Customers are only billed for their "net" energy use. On average, only 20-40% of a solar energy system’s output ever goes into the grid. Exported solar electricity serves nearby customers’ loads.
Find out what net metering is available from your utility and see what effect this has on the return you will get by installing a solar power system.
This digital meter runs in both directions to accommodate electricity generated at this customer’s home.
A 4 kilowatt PV system on a home in this area would offset around 4911 kilowatt hours
of electricity each calendar year, saving the homeowner over $380 on their utility bill.
(Source – NREL PV Watts, EIA)
Giving Customers Control Over Their Electricity Bills
Net metering allows utility customers to generate their own electricity cleanly and efficiently. During the day, most solar customers produce more electricity than they consume; net metering allows them to export that power to the grid and reduce their future electric bills. California public agencies and schools will save $2.5 billion in electricity costs over the next 30 years using net metering.
Creating Jobs & Encouraging Private Investment
Net metering provides substantial statewide economic benefits in terms of jobs, income and investment. Net metering increases demand for solar energy systems, which in turn creates jobs for the installers, electricians, and manufacturers who work in the solar supply chain. Today, the solar industry employs nearly 174,000 American workers in large part due to strong state net metering policies which have allowed the solar industry to thrive.
Protecting the Electric Grid
Unfortunately, some utilities perceive net metering policies as lost revenue opportunities. In fact, net metering policies create a smoother demand curve for electricity and allow utilities to better manage their peak electricity loads. By encouraging generation near the point of consumption, net metering also reduces the strain on distribution systems and prevents losses in long-distance electricity transmission and distribution.
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