Off-grid gear
Backup Power & Transfer
The hardware between a generator and a house that stays lit. Every link goes straight to the maker — no marketplace middlemen.
Rated for Europe: 230V single phase or 400V three phase, CE marking, and a maker you can get parts and service from without shipping across the Atlantic. The United States runs a separate list.
Size it first
Backup Power Calculator
Pick the circuits you keep alive and get generator kW, battery kWh and transfer-switch amps. Buy against your own numbers, not a guess.
Studer Innotec
Xtender inverter-chargers
Swiss-built 230V inverter-chargers with the transfer relay inside the box — the reference for a European off-grid AC supply.
Visit Studer InnotecPramac
Standby and portable generating sets
The Italian genset maker most European dealers actually stock and service, from 2kVA petrol portables to housed standby diesels.
Visit PramacHager
Changeover switches & consumer units
DIN-rail manual changeover and the consumer-unit gear a European electrician will sign off without argument.
Visit HagerEndress
Petrol and diesel inverter generators
German-built portables with proper earthing options for TT and TN sites.
Visit EndressThe picks
The exact models the calculators name
Run the numbers first — the Backup Power Calculator filters these to your result. Street-price bands, checked recently, not list prices.
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Links go direct to the maker. Some may earn Grid CEO a commission at no cost to you; nothing here was placed for pay, and no maker saw this list before you did.