ECO-PARK
Battery power plants for the energy transition
Your battery power plant.
Our operation.
Battery storage units networked into a virtual power plant: they charge when electricity is abundant and feed in when it becomes scarce and expensive. ECO-PARK handles monitoring, maintenance, trading and settlement – you receive a fixed annual lease.
125 kW
Output per unit
≈ 261 kWh
Capacity per unit
24/7
Monitoring and trading
Up to 10 years
Warranty on storage and electronics
ECO-PARK
Fixed lease
Up to 10-year warranty
125 kW output
261 kWh capacity
24/7 monitored
Power trading
A day in a battery power plant
Charge when power is abundant. Feed in when it is scarce.
Sun and wind deliver sometimes too much power, sometimes too little. The storage system balances it out – and that is exactly where its value comes from.
Sun
Wind
Storage
City
Input ↓
Output ↑
Power grid
Power price
Available energy from wind and sun
0 €
CHARGING
FEEDING IN
0 h
6
12
18
24
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Power price
85 €/MWh
80 €/MWh
76 €/MWh
74 €/MWh
75 €/MWh
82 €/MWh
98 €/MWh
118 €/MWh
110 €/MWh
72 €/MWh
30 €/MWh
−5 €/MWh
−28 €/MWh
−35 €/MWh
−22 €/MWh
8 €/MWh
55 €/MWh
110 €/MWh
160 €/MWh
185 €/MWh
165 €/MWh
130 €/MWh
105 €/MWh
92 €/MWh
Wind and sun
22 %
20 %
20 %
18 %
18 %
20 %
26 %
38 %
55 %
70 %
82 %
90 %
96 %
98 %
92 %
78 %
60 %
42 %
28 %
20 %
16 %
18 %
20 %
22 %
Storage charge
12 %
12 %
12 %
12 %
12 %
12 %
12 %
12 %
12 %
12 %
25 %
45 %
65 %
82 %
95 %
100 %
100 %
100 %
80 %
55 %
32 %
12 %
12 %
12 %
Night: little wind, no sun – the storage system waits.
Morning: the sun rises, the wind picks up – supply increases.
Midday: power in abundance, prices below zero – the storage system charges.
Afternoon: the sun is setting – the storage system is full.
Evening: no sun, little wind, high demand – the storage system feeds in.
Night: the city is supplied, the cycle begins again.
Schematic illustration of a typical day with high wind and solar generation. Not a forecast and no statement about revenues.
Why now
More and more often, the market pays to take electricity off the grid.
Every new wind and solar farm adds more hours of surplus power. In those hours, exchange prices drop below zero. Store that electricity and sell it later, and we are no longer talking about millions – but billions in potential market value.
573
hours with negative prices in 2025 – the highest since 2015
≈ €368 m
negative market value of this power in 2025
≈ €430 m
in the first half of 2026 alone
Hours with negative power prices in Germany
Day-ahead market, 2015 to 2026
2015
126
2016
97
2017
146
2018
134
2019
211
2020
298
2021
139
2022
69
2023
301
2024
457
2025
573
2026*
≈ 590
Sources: Federal Network Agency/SMARD (2015–2019), BHKW-Infozentrum (2020–2025, 2025 confirmed by SMARD), DIW Berlin Energiewende-Monitor 2026 (first half of 2026). * 2026: 291 hours in the first half (actual), full year ≈ 590 as a linear projection (forecast, hatched).
How it works
Many storage units, one intelligent power plant.
The storage units stand in groups on suitable commercial sites, are digitally networked and centrally controlled by the ECO-PARK control-room software.
01
Charge at low prices
When wind and solar output is high, prices fall – sometimes below zero. The storage system takes up power.
02
Central control
The control room monitors every unit and plans charging and discharging based on expected market developments.
03
Targeted trading
When prices are higher, power is fed back in – on the day-ahead and intraday markets, and in future also as balancing power (FCR, aFRR).
Your investment
Your own storage unit. Fixed lease. No operating effort.
You acquire a specific battery storage unit and lease it to ECO-PARK. Instead of depending on fluctuating market revenues, you receive a fixed annual lease.
Step 1
Purchase agreement
You acquire your own battery storage unit as a movable asset – with contractually agreed ownership.
Step 2
Lease agreement
ECO-PARK leases the storage unit at a fixed annual rate, regardless of utilisation and market prices.
Step 3
Operation and trading
ECO-PARK takes care of monitoring, maintenance, insurance, power trading and settlement.
On site
We stand where your investment is built.
ECO-PARK's management accompanies every project personally – from the foundation through installation to commissioning.
More about ECO-PARK
Insight
From foundation to power plant.
No simulations, no stock photos: footage from the construction of a storage park.
01
Delivery
Containers and cabinets arrive by low-loader on the prepared site.
02
Installation
The crane places each unit precisely on its foundation.
03
Connection
Cabling, metering and control systems connect the storage unit to the grid.
04
Operation
Networked in the virtual power plant, monitored around the clock.
Portfolio
Four fields, one goal: energy that is reliably available.
Battery power plants
Battery storage as the backbone of a flexible power system.
Renewable energy
Wind and sun as the basis of a low-carbon supply.
Balancing energy
Balancing groups and control reserve for a stable grid.
Data centres
Energy-intensive infrastructure, reliably supplied.
Get to know the concept in detail.
By phone, video call or in person – we take time for your questions and, on request, send you the complete exposé.
Weinbergstr. 8 · CH-8807 Freienbach
© 2026 ECO-PARK Management AG · All information without guarantee. This website does not constitute a public offer.
Concept, design and development: Technology Center