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US residential PV pricing fell 6.3% over past 12 months

Residential solar installation price declines have accelerated over the past year in the U.S. solar market. However, energy storage pricing has gone up, with Enphase taking an increasingly larger share of the market.

Solar challenging nuclear as potential climate change solution

Research suggests that we can power 80% of the United States with wind, solar, and 12 hours of energy storage, but the replacement of nuclear power plants hasn’t been financially viable. Is that about to change?

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Solar 101: Go solar, but go with your eyes open

Solar is uniquely virtuous among energy industries. But like all industries, consumers need to pay close attention to protect themselves.

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Tesla Powerwalls in California join the movement to create virtual power plants

Made up of distributed residential energy storage, these “plants” stabilize the grid and often end the need for new fossil generation. Tesla customers in California are the latest to join the movement.

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Solar 101: How to pay for your rooftop solar investment

The out-of-pocket cost for a solar power system can be pretty high. We take a look at bank loans, on-the-spot finance, third-party ownership, and the benefits of using cold, hard cash.

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Solar 101: Tips for keeping your rooftop solar system humming over the long term

Solar O&M comes down to mechanical rooftop connections, electrical solar panel connections, panel and connection temperatures, and inverters. Here are four possible plans of attack.

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Solar 101: Accessorize your rooftop PV with batteries, panels, and EV chargers

Rooftop solar is just the start, as energy storage, smart electrical panels, and EV chargers enter the mainstream for solar owners. Here’s a guide to matching your solar array with some of the most popular accessories.

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Do engineers dream of solar panel efficiency?

A true next generation of solar cell technology is upon us. It is time to contemplate the benefits.

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Solar 101: ‘Goldilocks’ your PV project to make it just right

Too big? Too small? Just right? Many factors need to be considered when deciding how large or small to make your rooftop solar array.

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Solar 101: The brains behind the beauty of your solar power system

In addition to converting the output of PV panels from DC to AC, inverters now perform a number of other functions, such as maximizing electricity generation, assessing performance and even shutting down in emergencies.

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