LOAD-FIRST BACKUP
Size the load. Then pick the station.
Portable power stations and solar generators are sold as watt-hour trophies. Houses fail at the compressor. We start with the refrigerator, the CPAP, the sump pump, and the hours you need — then we name the battery that can actually do that job.
Start with the appliance
Keep food cold
Fridge surge and overnight watt-hours decide the station class.
Keep a CPAP on
Night load is small. Humidifier and a second night are not.
Skip a $15k wall pack
After the U.S. tax-credit change, portable and modular backup is the first math — not the last.
Keep the internet on
Router watts are small. Twenty-four hours and the modem are not.
How we work
No in-house lab theater. Specs from manuals. Usable energy from named third-party tests when they exist. Runtimes always show the assumed load.
Read the method