Shed lights, tools or a small workshop
Choose one clearly defined load and prove the design before adding more appliances.
Read the detailed buying guide →
Fit first. Parts second.THE SUNPOWER WORKSHOP / Interactive buyer planner
An idea. A circuit. A brighter weekend.
The fun part is watching a system you calculated actually do a job. The smart part is deciding what that job is before ordering ten accessories. Solar projects worth actually finishing: from a weekend shed build to a full backup plan. Sketch it, size it, then make the parts earn their place.
Size the energy before you shop
Enter a daily energy budget in watt-hours, realistic peak sun hours, how many days of battery-only reserve you want, and your largest expected simultaneous running AC load. This quick estimate uses 75% solar derating, 80% usable storage, and a 25% inverter sizing allowance. It is an educational screen, not a verified design or a promise of compatibility.
Try an example, then edit your numbers:
Estimated panel nameplate500 WDaily Wh ÷ (sun hours × 0.75); rounded upward. Site shade and seasons change output.
Nominal battery capacity2.9 kWhDaily Wh × reserve days ÷ 0.8. Real usable energy varies by product and temperature.
Illustrative inverter continuous rating1,300 WRunning load × 1.25. Motor-start surge must be verified separately.
Do not use this estimate to size life-safety equipment or make electrical connections. Confirm actual appliance measurements, manufacturer voltage/current specifications, protective devices and local codes. For outages, fuel-generator safety and approved transfer equipment are separate considerations.
Three ways to make it work
Essential devices during a short blackout
Prioritize safe, portable backup for electronics and refrigeration rather than attempting to power everything.
Read the detailed buying guide →
Fit first. Parts second.A carefully planned cabin or off-grid circuit
Move from an afternoon project to a load schedule, electrical drawings and installer review.
Read the detailed buying guide →
Fit first. Parts second.Make something useful from sunshine
Write down the load, runtime, charging source, storage plan and installation conditions. Test the concept on paper first.
Permanent household electrical integration and transfer equipment are not DIY shortcuts. Use properly rated hardware and qualified installation.
Power a shed, an outdoor movie, or a real workshop
Research the specific Renogy and BLUETTI equipment, read the full pre-purchase checklist and try the new interactive tool.
Open complete-system shopping guide →Two ways to buy. Compare the actual fit.
These buttons lead to manufacturer storefronts through affiliate tracking. They do not assert that a particular bundle is in stock, priced at a certain amount, or compatible with your design. Verify each selected configuration on the merchant website.
Modular systems / Renogy
Build around a complete parts list
Modular solar equipment can suit permanent off-grid builds and RV system expansions. Confirm panel/controller voltage, charging limits, battery chemistry, breakers and installation requirements together.
Explore Renogy systems ↗Portable power / BLUETTI
Check integrated power stations
Battery stations offer supported AC or DC outputs in a single portable unit. Compare usable Wh, continuous W, surge, solar-input limits and recharge time before choosing a model.
Browse BLUETTI stations ↗Affiliate disclosure: We may earn a commission on qualifying purchases made through marked links, at no added cost to you. We have not purchased or physically tested every product discussed.
Check the fit before checkout
- List actual loads in watts and daily operating hours.
- Check peak and starting loads separately.
- Verify battery usable capacity and charging temperature limits.
- Check panels, controller, charger, cables and connector compatibility.
- Price protective equipment, mounts and professional installation where needed.
Still deciding?
Begin with the site's detailed sizing guide, then read the field notes for the trade-offs that matter to your use case.