The EEG feed-in tariff ends after 20 years
Once the EEG support period ends, PV systems drop out of the tariff scheme. At the same time, tariff rates for newly built systems keep falling. This shifts the math: every kilowatt-hour consumed on-site is worth far more than the one fed into the grid. A battery storage system shifts generation to the times your operation actually needs electricity.
Typical day in summer
Schematic example values, 240 kWp system, peak load around 85 kW.
per kWh fed in
per kWh drawn from the grid
Example values, depending on system and supply contract.
What a storage system changes in operation
Typically pays for itself within 7 years
Plus a tax advantage through special depreciation (Sonder-AfA) of up to 30%, limited until the end of 2027.
Better utilization of the PV system
Midday surpluses are stored instead of curtailed and are available again in the evening.
Peak shaving
Short spikes from milking equipment, cooling or drying are covered by the storage, keeping grid draw steady.
Higher self-consumption
Power that was previously fed in for around 3–6 ct now replaces grid draw worth around 25–30 ct.
When a storage system can pay off
annual electricity consumption
PV capacity
Guideline values. What matters is when the power is needed: operations with consumption in the evening and at night benefit the most. We check it against your actual data.
Commercial operation with a 240 kW PV system
An existing PV system with high daytime consumption was later extended with a battery storage system. Only the storage extension is calculated: what does it add, and when is it paid off?
Anonymized. Based on a 20-year economic forecast, electricity price 0.21 €/kWh, applicable feed-in value 0.06 €/kWh. Not financial advice.
Planning, installation and commissioning from a single source
We design the PV system and battery storage as a complete system matched to your load profile: assessment, sizing, installation, metering and protection technology, commissioning and grid operator registration. One point of contact stays responsible throughout the entire project.
Our price advantage
Through our direct import we can offer you storage solutions at significantly fairer prices – without compromising on quality and service. Benefit from modern technology at attractive conditions.
- ✓Direct from the manufacturer – no middlemen
- ✓Including imports from China with verified quality
- ✓Price advantage passed directly on to you
- ✓No compromise on quality – full warranty and certification
Storage sizes for every need
From small commercial operations to large-scale systems – we size your storage to match your consumption and your PV system.
Example: 238 kW PV system with 200 kWh storage
Our Hamburg reference project shows: a 238 kW PV system combined with a 200 kWh battery storage system reaches self-consumption of over 70% and pays for itself in under 7 years.
View all references →