Industries
Storage with or without solar.
How to choose · Home batteries
Size on two separate numbers: energy capacity, which sets how long the battery can supply your evening and overnight load, and power output, which sets how many appliances it can run at once. Study your own interval data, your solar surplus, and whether you want backup during outages. Oversizing leaves capacity idle; undersizing leaves expensive grid use at peak times.
Comparison · Home batteries
Two chemistries dominate home storage. Lithium iron phosphate tends to offer long cycle life, thermal stability and no reliance on cobalt, at the cost of lower energy density. Nickel-manganese-cobalt cells pack more energy into less space and weight but have stricter thermal management needs. For fixed installations where space is available, stability and cycle warranty usually matter more than density.
Suitability · Home batteries
A battery suits homes with a large gap between cheap and expensive electricity periods, high evening use after solar fades, reliable need for backup, or limited export value for surplus solar. It suits poorly where the tariff is flat, usage is low, export is rewarded generously, or the household might move soon. Rules on grid charging and incentives vary by country, so confirm with your energy agency.
Requirements · Home batteries
Safe installation depends on location rules, certified equipment, qualified electricians, correct isolation and labelling, and notification to the network operator. Many jurisdictions restrict siting in habitable rooms or on escape routes and require clearances from openings. Requirements differ by country and by local authority, so confirm with your electrical safety regulator before choosing a location.