- PV plant, existing
- BESS containers, proposed
- connection to the main switchboard (proposed)
- EnergoMind: OKTE spot, peak shaving (proposed)
| Drawing | BESS site plan |
|---|---|
| Site | production hall |
| Scale | graphic |
| Prepared by | Energovision s. r. o. |
| Date | 09/2026 |
Battery storage for businesses
Lower reserved capacity, higher self-consumption, backup and the spot market. Every battery is controlled by EnergoMind.
A battery is a tool for the electricity bill, not an add-on to the panels
Businesses pay for reserved capacity and demand peaks that last a few hours a month. A battery cuts them, uses in the evening what the PV plant generated during the day, and keeps operations running during an outage. With control, it buys cheap and sells expensive electricity on the spot market.
We supply three brands for industry and commercial buildings, controlled by EnergoMind. We calculate capacity and power from your 15-minute load profile, not from a catalogue.
- Capacities
- 7 kWh household up to MWh industry
- C&I brands
- Huawei, Sungrow, LONGi PotisEdge
- Control
- EnergoMind, OKTE DAM spot
- Use
- peak shaving, self-consumption, backup, spot
- Price
- from 270 €/kWh for large systems
- Prices as of
- 08/2026
What a battery solves
Peak shaving
- Lower reserved capacity and demand peaks
- Smaller capacity charge every month
- Protection against exceeding the reserved capacity
- Control based on load forecasting
Self-consumption and backup
- PV surplus used in the evening and at night
- Less electricity exported at the feed-in price
- Backup of critical circuits during an outage
- Off-grid operation according to the design
Spot market
- Buying in cheap hours and selling in expensive ones according to OKTE DAM
- Monitor, shadow and auto modes with gradual run-in
- Protection of the battery against cycles that shorten its life
- Measured results on energomind.sk after the run-in
Subsidies
- Zelená podnikom (Slovak business PV scheme), Ministry of Finance calls, PPA 73.4 and 73.7, FST
- Sizing according to the call conditions
- Documents for the application and settlement
- We promise the process, not the outcome
- 24/7
- EnergoMind battery control by spot prices
- peak shaving
- lower charge for reserved capacity
- 300+
- systems monitored by the monitoring centre
Indicative battery storage prices
The price per kWh falls with system size and depends on inverter power, brand, connection and civil works. Ranges are excluding VAT and before subsidy. You receive an exact quote after an assessment of your data.
We never state a fixed price per kWh without a design; a badly sized battery is expensive even at a good price.
Indicative ranges in €/kWh excl. VAT. As of 08/2026.
| System size | Price per kWh | Typical use |
|---|---|---|
| C&I 241 kWh | 460 to 720 € | smaller operation, peak shaving |
| C&I 422 kWh | 400 to 610 € | manufacturing, logistics with PV |
| C&I 1 MWh | 330 to 530 € | industry, spot and peak shaving |
| 5 MWh and more | 270 to 450 € | energy sector, large industry |
| Residential | 350 to 650 € | family home with PV |
A subsidised battery is sized according to the call (Zelená podnikom 0.25 to 1 kWh per kW; MoF 8 with the 75 % absorption rule; PPA 73.4 with a battery of at least 10 %), not according to economics. That is why we calculate two designs when a subsidy is involved.
Who it is for
- Manufacturing and industryhigh reserved capacity, peaks when machinery starts up, existing PV plant
- Agriculture and food productionseasonal peaks, cooling, PPA subsidy calls with a battery requirement
- Logistics and commercial buildingsfleet charging, air conditioning, backup for server rooms and cooling
- Energy sector and investorsMWh systems for the spot market and grid services
How we work together
- 01
Assessment from 15-minute data
From the invoice and data we determine the peaks, reserved capacity and surplus. From those the capacity, power and economics.
- 02
Design and subsidy eligibility
If a call is open, we also design a variant that meets its conditions and compare both batteries.
- 03
Design and grid connection
AC or DC coupling, switchboard, protection, metering, transformer station and MV connection if needed.
- 04
Delivery and installation
Container or cabinet, civil works, interconnections, commissioning, inspection.
- 05
Run-in and control
EnergoMind measures, then simulates for seven days and only then controls. The monitoring centre watches the battery around the clock.
Battery assessment from your data
Send us your invoice and the interval data from your distribution system operator. Within three working days you have capacity, power, economics and subsidy eligibility.
Why do it with us
Three brands, one control system
Huawei LUNA2000, Sungrow PowerStack and PowerTitan, LONGi PotisFlexi. We choose the brand for the project; the control is always EnergoMind.
We size from data, not from a catalogue
We can say which effect the battery delivers first.
MV competence and our own switchboards
We build the connection, switchboard and transformer station with our own people.
300+ systems in the monitoring centre
The battery is watched by the same monitoring centre as the PV plants.
How EnergoMind controls a battery is explained on the EnergoMind page and in detail at energomind.sk. Prices and references are published only here, on energovision.sk.
One project, six services
It is rarely just one thing. On a single delivery we also handle what sits upstream and downstream in the circuit.
Questions we get asked
1How much does battery storage for a business cost?
Indicatively, excluding VAT and as of 08/2026: at 241 kWh 460 to 720 €/kWh, at 422 kWh 400 to 610 €/kWh, at 1 MWh 330 to 530 €/kWh, above 5 MWh 270 to 450 €/kWh. Residential batteries 350 to 650 €/kWh. The price per kWh falls with size and depends on power, brand, connection and civil works. We do not state a fixed price without a design.
2How does a battery pay off without a subsidy?
In three ways at once: it lowers the reserved capacity and demand peaks, increases self-consumption from the PV plant, and buys or sells according to OKTE spot prices. Which of them dominates is shown by the assessment of your 15-minute data.
3Why do you talk about two different batteries?
A subsidised battery is sized according to the call conditions: Zelená podnikom 0.25 to 1 kWh per kW, MoF 8 with the 75 % absorption rule, PPA 73.4 with a battery of at least 10 %. A battery for economics is sized according to your consumption. These are two different calculations and sometimes two different batteries.
4Has the EU banned Chinese batteries?
No. No EU regulation bans Chinese inverters or batteries. It is a matter of financing conditions and some subsidy calls that favour European origin. As of 08/2026.
5What is EnergoMind?
Our battery and energy management system, supplied with every battery. It controls the battery by OKTE spot prices, peak shaving and load forecasting, and protects it from operation that shortens its life. It runs in three modes: monitor, shadow with a 7-day run-in, and auto.
6What are the warranty and lifetime?
The battery warranty is usually 10 years with the manufacturer's conditions on the number of cycles. That is why we do not run the battery for maximum arbitrage but so that earnings and lifetime fit together; EnergoMind sets the mode.
Non-binding enquiry
State your reserved capacity or monthly bill, whether you have a PV plant and whether you are interested in a subsidy. We will get back to you by the next working day.
Businesses and municipalities: obchod@energovision.sk
Phone: +421 908 366 332
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