Battery storage from 125 kWh to 5 MWh
Grow inside the connection you already have.
The grid is full and your chargers, heat pumps and production lines will not wait. Stroomkern sizes, installs and operates battery storage behind your meter so peaks stay below your contracted capacity.

- Grid demand (modelled)
- With storage
- Contracted capacity
- Solar output
- Peak before
- 470kW
- Peak after
- ≤ 380kW
- Contracted capacity
- 400kW
- Indicative storage
- 250kWh
Illustrative logistics site: 400 kW contracted, 80 kW EV charging, 250 kWp solar. Modelled, not measured.
Which situation is yours?
Four reasons companies call us
Most sites have one main reason to consider storage and one or two side benefits. Start with the problem, not the battery.
Grid congestionNo extra capacity availableYour grid operator cannot increase the connection for years. Storage lets you add load without waiting.Read more
Peak shavingShort peaks set the limitA few quarter-hours a day push you over your contracted kW. A battery covers exactly those moments.Read more
EV fleetChargers on a full connectionVans and trucks arriving at the same time. Storage buffers the charging peak in the morning.Read more
SolarSolar you cannot use or exportMidday surplus is curtailed or exported at low value. Store it for the evening shift.Read more
The system
Kern 125 cabinets and Kern Block containers
Modular lithium iron phosphate (LFP) storage with an energy management system that reads your main meter every second. Start with one cabinet, scale to eight, or move to containers for sites up to 5 MWh.
- Cabinet
- 125kWh
- Max. cabinets
- 8parallel
- Container
- 2.5MWh
From data to a running system
Every proposal starts with your 15-minute data
The calculator gives a first indication. A real proposal needs your measured load profile – that is where peaks, recharge windows and the business case become clear.
- IndicateUse the capacity calculator for a first size.
- AnalyseShare a year of 15-minute meter data. We model peaks and recharge windows.
- ProposeSystem size, location on site, safety approach and financing route.
- InstallFoundation, cabling, commissioning and EMS settings.
- OperateRemote monitoring, reports and service.
Demonstration project
A distribution centre adds 12 van chargers on a 400 kW connection
A fully worked example: measured profile, sizing choices, location on site, and what the model says before and after storage. Fictional site, real method.
Next step
How much storage would your site need?
Six inputs, a drawn load profile and an indicative size in kW and kWh. Not advice, not a quote.