Router, phones, lights and medical-device considerations
Battery power can be convenient for modest essentials, provided runtime and device specifications match.
Read the detailed buying guide →
Fit first. Parts second.THE BLACKOUT COMMAND DESK / Interactive buyer planner
When the grid blinks, have a plan.
The first hour without power is not the time to discover that your backup station cannot start your refrigerator. A simple load table changes the whole decision. Powering essentials is a logistics problem, not a horsepower contest. Build a short outage load list and compare fuel-powered and battery-powered routes.
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
Food refrigeration and selected outlets
Calculate motor start surges and energy use. A battery station and fuel generator solve different problems.
Read the detailed buying guide →
Fit first. Parts second.Fuel, charging time and a written safety plan
Plan for safe outdoor generator placement and approved electrical connection, not improvised backfeeding.
Read the detailed buying guide →
Fit first. Parts second.Outages are stressful. Buying can be calmer.
List essential loads, peak starting watts, hours of operation, fuel availability, extension-cord ratings and safe operating locations.
Fuel generators must operate outdoors, far from windows, doors and vents. Never backfeed a household outlet; use approved transfer equipment installed by a qualified professional.
Plan backup power for the first night and the third day
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
Compare the plug-in backup loads you need to run, output rating and safe recharge options. Battery stations avoid onsite exhaust, but still have capacity and input limits.
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.