The 25-year warranty doesn’t mean panels die at 25. NREL field data and the Swiss Mont-Soleil array show panels at 30-40+ years still producing 75-85% of original output. Here’s the real lifespan story.
Solar panels degrade at a median 0.5%/year, but premium panels do 0.25% and bargain panels do 1.0%. Here’s the actual physics — LID, PID, microcracks, encapsulant browning — and what makes the difference.
Tandem perovskite-on-silicon cells hit 33.9% efficiency in lab in 2025, well past silicon’s physical limit. Stability is the catch — and it’s been ‘five years away’ for fifteen years. Here’s where the tech actually stands.
Photons hit silicon, knock electrons loose, electrons become electricity. Here’s the actual physics of how a solar panel works, explained without the brochure-speak that hides simple ideas behind acronyms.
Residential wind turbines need 12+ mph average wind at hub height and an unobstructed site to make sense. Most homes don’t have either. Solar wins for 90%+ of properties. Here’s how to tell which camp you’re in.
Ground source heat pumps use the constant temperature of the ground to heat and cool your home with a COP of 3.5-5.0. Upfront cost is steep, but in cold climates the math works. Here’s how it actually functions.
Three ways to use solar electricity you don’t immediately consume: net metering (1-for-1 grid credits), feed-in tariffs (fixed export payments), or battery storage. Here’s the economics and policy risk of each.
Community solar lets renters and apartment dwellers subscribe to a solar farm and save 5-15% on their electricity bill without owning a panel. Here’s how it works, who it’s for, and what to watch for in the contract.
Every solarpunk reading list cites the same five books. Here’s a wider 15 — from Le Guin and KSR proto-solarpunk to recent anthologies — that imagine futures actually worth building toward.
Solarpunk isn’t fictional. Bosco Verticale in Milan, CopenHill in Copenhagen, Gardens by the Bay in Singapore — buildings illustrators have been drawing for years are already real. Here are ten that count.