Balcony solar in the US: DIY kits promise bill relief, but regulation lags

An opinion piece arguing that plug-in solar (balcony/diy/plug‑and‑play) can deliver immediate utility bill relief for renters by allowing 400–1,200 W kits that plug into standard outlets. The article cites Europe as a model with Ikea/Svea Solar pricing around 0.65 €/W, while US kits run about $1.58–$1.60/W, yet a field test built in the SF Bay Area achieved a 1.2 kW system for roughly $635 (66¢/W) with ~5.5 kWh/day production and ≈$50/month savings, implying payback just over a year. However, permitting, interconnection, and safety rules (UL 3700) plus changing net‑metering policies create regulatory and logistical hurdles, so wide adoption will depend on policy evolution, safer pre‑fab kits, and smarter distribution and education efforts.