An estimated 14 million of you currently rely on solar power for all of your electrical needs. Here are some basic electrical calculations if your electricity cost is more or less than $0.90 per Megawatt hour (MWh). To calculate your annual household electricity use, multiply the annual electricity cost of $0.90 by two to get your annual average household electricity use.
$15,000 annual household electric bill
$0.90 annual average household electrical use [per MWh] $150,000 annual household electric bill
$0.90 annual average household electrical use $600,000 annual household electric bill
$0.90 annual average household electrical use [per MWh]
If you are currently generating solar power for free—for example, with solar panels at home, at a business or on-site—then you can still afford to purchase solar panels. For example, if you have a residential solar system that pays off over 20 years for $1400 per year if you keep it at a high efficiency (90% or greater), then you could still pay only $75 per year to pay for a rooftop solar system, a residential rooftop solar energy system in your backyard, or solar-powered devices like your water heater and electric-gadget generator.
Learn more about solar electricity generation for free!
For details on how to calculate your electric bill, whether your electricity use is free, or to compare how much money you save each year by using solar electricity generation, see the following resources.
Solar power generators are often provided free to solar homeowners, businesses and institutions. The free generators typically include generators (also known as solar plants, which are commonly known as solar photovoltaic (PV) panels) that convert energy to electricity at night so that other homes, lights, or appliances can operate 24 hours a day) and backup generators that are designed to keep the generator running during power outages. All utilities in the United States are required to provide a utility-scale renewable energy system under the Clean Energy Act and state legislation.
Learn more about how to calculate your electric bill.
What are the risks of installing solar power?
The most common risk of installing solar power is when the sun doesn’t shine because the panels are too cloudy, or the wind is too strong. Because the panels on a distributed energy system are generally far enough away for the wind to blow through the air, a solar power system doesn’t make as
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