Tiny Home, ADU & Container 48V Solar Blueprints
Small-footprint homes face unique engineering challenges—from $20,000 utility transformer upgrade demands on backyard ADUs to CorTen steel roof condensation on shipping containers and 70 mph highway wind shear on Tiny Houses on Wheels. Explore our 8 complete 48V blueprints.
California Detached ADU Solar & Battery Blueprint: Bypassing $20,000 Utility Upgrades
Under California Title 24 Building Energy Efficiency Standards, newly constructed detached ADUs require rooftop solar—and utilities routinely demand $15,000–$25,000 to upgrade the main house’s 100A/200A panel. Here is how to wire a code-compliant ADU solar + battery system using NEC 705.13 PCS with $0 utility upgrade.
Shipping Container Home (20ft & 40ft Conex) Zero-Weld Rooftop Solar Blueprint
Never drill self-tapping sheet-metal screws directly into the thin 14-gauge corrugated roof of a shipping container! Learn how to clamp Unistrut solar racking directly to the heavy structural ISO corner castings and top side rails to support 6.6 kW of bifacial panels in 120 mph winds.
Tiny House on Wheels (THOW) Mobile 48V Solar & 30A/50A Shore Power Blueprint
A Tiny House on Wheels (THOW) must survive 70 mph highway towing gusts, balance tongue weight within 10%–12% of GVWR, and plug into everything from a 15A friend’s driveway outlet to a 50A RV pedestal or 100% off-grid pasture.
A-Frame Cabin 60-Degree Steep-Pitch Roof Solar & Heated 48V Off-Grid Blueprint
An A-Frame cabin’s 55° to 60° (18:12 to 20:12) roof pitch is actually the ultimate winter solar machine: snow slides off immediately on standing-seam metal, and the steep angle catches low December sun horizon rays at 95% efficiency!
Geodesic Dome & Yurt Off-Grid 48V Ground-Mount Solar Blueprint
Never attempt to bolt solar panels onto a curved yurt tension roof or PVC geodesic dome membrane! Learn how to build a 2.4kW–4.8kW ground-mount array 50–150 feet away in a sunny clearing and trench high-voltage PV wire with <1% voltage loss.
Barndominium & Metal Shop Home 48V Split-Phase Solar Blueprint (12kW–18kW)
Barndominiums and post-frame shop homes have the easiest, lowest-cost solar roof in America (unshaded metal spans) combined with high-surge 240V shop tools (50A MIG/TIG welders, 5 HP 80-gallon air compressors, and 2-post car lifts). Here is the ultimate Barndo solar blueprint.
Detached Backyard Office Shed & Studio Solar + Mini-Split Kit (Zero Trenching)
Hiring an electrician to trench 100 feet across your landscaped backyard, cut concrete patios, and pull a 60A subpanel permit just to power a 10x16 backyard office shed costs $4,200+. Build a 1,600W solar + 5kWh battery shed system for half the cost in one weekend—and get the 30% tax credit!
Park Model RV (ANSI A119.5) & 400 Sq.Ft. Modular Cottage 50A Solar Blueprint
Seasonal and full-time Park Model RV resorts in Arizona, Florida, Texas, and California often bill sub-metered electricity at 25¢ to 42¢/kWh. Here is how to fit 3.6 kW of rooftop solar and a 14.3 kWh battery onto a 400 sq.ft. Park Model cottage.