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What is Plug-In-Solar?
| @martinforde
A new category of solar power is beginning to emerge in the United States: Plug-in-Solar.
What is it? Put simply, Plug-in-Solar is a small & lightweight panel, a micro-inverter, and a standard plug, which you plug directly into any regular 120V wall outlet. The power generated from these panels flows into your home’s electrical system. It directly offsets the power you’re pulling from the electrical grid, by using the power generated from solar energy to power appliances always on in your house (such as your refrigerator, internet router, or lights / fans).
Solar panel technology is something which has been around for decades. Historically, the early adopters of solar were limited to homeowners, or large commercial properties.
That is, until now. A new way of accessing solar has started to gain traction in the US since 2025. Historically, utility companies would require costly and time prohibitive inspections, interconnection fees, or smart meters before being able to hook up a plug-in-solar system.
Starting with Utah, a number of states have passed legislation explicitly allowing these systems up to a certain wattage cap. At the time of this writing in September 2026, over 9 states have passed bills allowing plug-in-solar statewide. These states are:
Additionally, California and New York each have bills which are pending, which would legalize Plug-in-Solar in two of the largest states in the country.
Germany was the first consumer market where these systems were pioneered. Today, over 4M of these systems have been sold since being widely legalized after the outbreak of the Ukraine war. Consumers experienced rapid increases in energy bills, and the systems became hugely popular as they allow everyday homeowners, condo owners, or renters to take control of their energy independence by directly generating power to save them money every month off their power bill. For more information about the European market for Plug-in-Solar, check out our article HERE about the history and legislation.
This is what’s so compelling about Plug-in-Solar, and why I’m personally excited about it. These systems can generate substantial savings by directly reducing the amount of power you use from your utility company.
The savings are reflected in reductions in your monthly electricity bill. An 800W system has the capacity to offset anywhere from 20% - 50% of the average apartment’s electricity bill. Depending on your individual electricity rates (based on where you live), the payoff for these plug-in-solar systems can be as short as 24 - 36 months.
At utu Solar, we’re building the go-to resource for anyone to understand and buy a plug-in-solar system. If you got value from this article, sign up for our email list HERE. We’ll be sharing all the newest developments and tools in this exciting space, including how to get one of these systems in your home.