Learning center
Everything you need to know about plug-in solar.
Six short, plain-English guides — from what plug-in solar is and how it works, to what it saves, how it compares to the alternatives, and whether it’s allowed where you live. Read them in order, or jump to whatever you need.
Recommended order
A path from curious to confident.
01 · Updated 2026-07-02 · 6 min readWhat is plug-in solar?
A plain-English guide to balcony and plug-in solar: what it is, what's in a kit, who it helps, and what it doesn't replace.
02 · Updated 2026-07-02 · 6 min readHow does plug-in solar work?
Follow the electricity from panel to plug to your home — and understand why the outlet connection is the part that needs care.
03 · Updated 2026-07-02 · 7 min readIs plug-in solar safe?
What can go wrong, what the new U.S. safety standard is meant to prevent, and the checks that separate a safe kit from a risky one.
04 · Updated 2026-07-02 · 6 min readHow much can plug-in solar save?
What drives the savings, why estimates should be ranges, and honest example numbers for a typical kit.
05 · Updated 2026-07-02 · 6 min readPlug-in solar vs. the alternatives
How balcony solar compares with rooftop solar, portable power stations, generators, and community solar — and when each one makes sense.
06 · Updated 2026-09-01 · 7 min readState laws, permits, and utility rules
Why plug-in solar is legal in some states and not others, and how to read a fast-moving legislative tracker without jumping to conclusions.
07 · Updated 2026-07-05 · 8 min readBest plug-in solar kits in the U.S.
A cautious shortlist framework for comparing plug-in solar kits: who each option may fit, what to verify, and why certification matters more than hype.
08 · Updated 2026-07-05 · 7 min readBalcony solar for renters
How renters should think about plug-in solar: lease permission, balcony mounting, state rules, utility checks, savings, and what to ask before buying.
09 · Updated 2026-07-05 · 6 min readPlug-in solar vs. rooftop solar
A plain-English comparison of plug-in solar and rooftop solar: cost, installation, savings, renters, backup power, permits, and trade-offs.
10 · Updated 2026-07-05 · 7 min readUL 3700 explained
What UL 3700 means for plug-in solar buyers, what it tests, what it does not prove, and how to read certification claims.