Liquid-cooled LFP chemistry
Intelligent liquid cooling keeps the temperature difference between battery cells below 4°C, which significantly extends their service life.
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BESS
BESS
Battery Energy Storage Systems
We design, engineer, install, and operate large-scale battery systems that stabilize the power grid and generate recurring revenue through ancillary services and arbitrage — from compact cabinets to industrial container parks.
kW
Power: The energy delivered
kWh
Energy: how long the output can be provided
Application
One facility, multiple revenue streams
A battery system from Meganet is not just backup — it is an active market participant that continuously finds the most valuable application.
System services
Participation in FCR, aFRR, mFRR, and FFR ensures stable earnings independent of spot market prices.
Arbitrage
The facility charges when prices are low and sells power when prices are high.
Backup & network optimization
Ensures security of supply and relieves your grid during peak loads.
Plant specifications
Industrial strength, complete solution, ready for operation
A typical Meganet battery system — key technical figures for a single container module. Scales linearly from one to multiple modules depending on the project size.
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AC power per container
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DC capacity per container
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Maximum efficiency
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Full cycles at 70% retention
IP54 · -20°C to +40°C
Outdoor steel container with IP54 system protection and operation throughout the entire Danish climate range, all year round.
Active BMS + SCADA
Actively balancing battery management at the cell and rack level, integrated with Meganet's own VPP and SCADA platform.
Plug & play connectivity
Fully pre-installed and factory-tested prior to delivery. Connects directly to the low-voltage grid without further modification.
Precise frequency regulation
Response time under 1 second makes the plant suitable for FCR, aFRR, and other time-critical system services.
System-level fire protection
Aerosol-based fire suppression (FK-5-1-12), gas detection (CO/H2), and automatic emergency disconnection as standard in all modules.
Remotely monitored 24/7
All operational data streams in real-time to Meganet's control center, which monitors and optimizes the facility around the clock.
15+ years design life
Designed for over 15 years of commercial operation with more than 78% remaining capacity after 10 years of operation at normal cycle frequency.
93.86% one-way / 88.11% round trip
Documented efficiency: 93.86% single-trip and 88.11% round-trip efficiency, measured on 314Ah LFP cells at 8,000+ cycles.
Certifications and standards
IEC 62619UN 38.3IEEE 1547UL 9540ACE / EMCVDE 4110UL 1973UL 1741IEC 62477-1EN 50549-1EN 50549-2CE-LVDPositive PCS
Safety and durability
Built for decades of operation, not just years
A battery system is a long-term investment. Therefore, safety, thermal management, and continuous monitoring are built into the system from day one — not something added later.
Multi-layered fire protection
Each container module is equipped with aerosol-based fire suppression (FK-5-1-12), continuous gas detection (CO/H2), and automatic emergency disconnection, which isolates any affected module without impacting the rest of the facility.
Lifespan and degradation
At a normal cycle frequency, the cells typically retain over 78% of their original capacity after 10 years of operation, and the system is designed for a commercial lifespan of over 15 years, supported by active liquid cooling and cell balancing.
Service and remote monitoring
All operational data flows in real-time to Meganet's control center. Scheduled service and any deviations are identified before they impact the plant's earnings or availability.
Battery containers
One format, many configurations
All Meganet battery containers are built on the same field-tested platform — only the number of modules and the footprint change. Two models cover most needs: the standard container (1,000 kW / 2,315 kWh) for large areas and industrial or grid-scale facilities, and the compact Flex (125 kW / 261 kWh) for space-constrained locations and smaller commercial properties.
Steel and IP54
Outdoor steel container with IP54 system protection, designed for year-round operation in the entire Danish climate range.
Plug & play
Fully pre-installed and factory-tested prior to delivery. Connects directly to the low-voltage grid without further modification.
Linear scaling
From a single module to an entire battery park — the containers are connected according to the same principle, regardless of the size of the project.
Industry and business
Several ways an industrial battery pays off
In addition to system services and arbitrage, the battery is a flexible resource for the individual company — it reduces capacity tariffs, secures critical operations, makes better use of self-generated power, and can postpone expensive grid expansions.
Peak shaving
The battery clips your power peaks, allowing you to avoid expensive peak load tariffs and reduce your subscribed grid connection capacity.
Backup & security of supply
In the event of a power outage, the system ensures the continued operation of critical processes until normal supply is restored.
Self-consumption optimization
Surplus production from private solar or wind installations is stored and used when it is most valuable, rather than being sold cheaply.
System services
In addition to your own needs, the facility can simultaneously bid into FCR, aFRR, mFRR, and FFR — and generate revenue independently of your own consumption pattern.
Arbitrage
The system charges when electricity prices are low and sells or uses the power when they are high — an additional revenue stream alongside your operational needs.
Deferred grid expansion
By peak shaving, an expensive upgrade to your grid connection can often be postponed or avoided entirely.
The difference in practice
Without battery vs. with an industrial battery
An industrial battery changes how your business is exposed to the grid and the market.
Without battery system
Power peaksFull exposure to peak load tariffs
CrashFully dependent on the reliability of the network
Own productionSurplus is often settled at a low price
With battery systems from Meganet
Power peaksReduced via automatic peak shaving
CrashBackup ensures the continued operation of critical loads
Own productionStored and used when it pays off most
Funding
Three ways to own a battery system
There is no single right model — the right one depends on your capital strategy, risk appetite, and how much you wish to invest yourselves.
Full ownership
I own the facility 100% and receive all earnings from system services, arbitrage, and my own savings directly. Meganet handles design, installation, and operation on your behalf.
Co-ownership with Meganet
You and Meganet share the investment and earnings in a split that matches your capital strategy — a model that lowers your initial investment while you still share in the returns.
Operating agreement
Meganet fully owns and finances the facility, places it on or at your location, and you receive a fixed share of the earnings — without tying up any capital yourself.
Meganet by the numbers
Scales linearly with your needs
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1,000 kW · 2,315 kWh — smallest building block
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2,000 kW · 4,630 kWh — double capacity, same footprint principle
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125 kW · 261 kWh — compact FlexCube for space-constrained locations
ROI calculator
What return can a battery system provide for you?
Based on a real-world installation and market foundation: the battery charges when electricity is cheap and discharges when it is expensive, and the default values below represent a system that is already profitable with a short payback period. Feel free to adjust the assumptions for your own installation.
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Tilbagebetalingstid
Estimeret årligt nettoafkast
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10-års nettopotentiale
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The calculation is indicative and based on actual installation prices and a completed backtest against historical DK1 spot prices. Contact us for a specific calculation for your installation.
Process
From idea to operation — all the way yourself
01
Analysis & potential
We map your consumption, flexibility, and market potential and prepare a concrete business case.
02
Design
Our electrical engineers design the facility — technically and economically optimized for the location.
03
Installation
Our own electricians and marine engineers handle the entire installation, from foundation to grid connection.
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Operations & optimization
Our VPP and EMS platform manages the facility 24/7 and continuously optimizes across markets.
Questions and Answers
Good to know about BESS
How large should a battery system be?
It depends on your consumption, area, and goals — we size the system based on a specific potential analysis. If you have limited space, we also offer a compact 125 kW / 261 kWh FlexCube battery cabinet as an alternative to the large containers.
Who owns the facility?
You choose for yourselves: full ownership, partial co-ownership with Meganet, or an operating agreement where we retain ownership and you receive a share of the earnings.
How long does a project take?
From analysis to commissioning, a typical project takes between 6 and 18 months, depending on size and grid connection.
Which certifications does the facility have?
The facility is certified according to a number of international standards, including IEC 62619, UN 38.3, IEEE 1547, UL 9540A, UL 1973, UL 1741, IEC 62477-1, EN 50549-1/2, CE-EMC, CE-LVD, and VDE 4110.
Can containers be expanded later?
Yes. The foundation and grid connection can be designed for future expansion, allowing you to add more modules as the need grows.
Is an industrial battery worth it for my business?
It depends on your consumption patterns, capacity tariffs, and any on-site production. We will prepare a concrete business case based on your actual data before you commit.
Can the battery also participate in ancillary services?
Yes. In addition to peak shaving, arbitrage, and backup, the system can simultaneously participate in FCR, aFRR, mFRR, and arbitrage when it is not occupied by your own needs.
Who is responsible for service and maintenance?
Meganet is responsible for all planned service and maintenance throughout the entire lifetime of the system, regardless of which ownership model you choose. Remote monitoring ensures that most deviations are detected before they impact operations.
What happens to the batteries when they have reached the end of their service life?
LFP battery cells contain neither cobalt nor nickel and are among the most recyclable battery cell chemistries on the market. At the end of their service life, the cells are handled through approved recycling schemes.
Contact
Ready for your own battery system?
Book en uforpligtende samtale med vores team. Vi kortlægger jeres potentiale og viser, hvad en løsning fra Meganet konkret kan betyde for jer.