Battery Trading & Arbitrage on Short-Term Markets
Large-scale battery storage is essential for integrating renewable energy into the grid and replacing fossil fuels. As a leading expert in battery storage trading, FlexPower is setting new standards in the industry. Our expertise in renewable energy trading, combined with the longest track record on German short-term power markets, ensures maximum returns through innovative marketing models. Partner with a team that understands and shapes tomorrow's energy markets - today.
OUR APPROACH
Every Battery Storage system is unique. And that's how we treat & trade it!
PUNCH 1
24/7 maximum revenues
Algorithms control your storage. Traders monitor the markets. Around the clock, across all relevant markets. When the market shifts, our trading desk reacts - not just the bot.
PUNCH 2
Don't you worry
Our revenue modules maximize your returns. Your earnings are guaranteed, regardless of our performance as a trader. Strong financial backing ensures your revenues are bankable and your project financing is secured.
PUNCH 3
At your service
We are committed to providing our customers with the best prices and the fastest and most professional customer service. We value openness and transparency and help our customers understand the complexity of the energy market and the value of their storage system.
The Master Plan
While you ensure the technical performance of the storage unit, we optimize its use across all relevant markets - automatically, securely and profitably. We take into account not only the spot markets, but also the balancing energy markets. With this cross-market strategy, your battery is charged at the most favorable prices across all price curves and discharged at the most lucrative prices.
Our Offer for your Battery Storage System
Flexibility and predictability on your terms
Our revenue modules are based on the daily price spread of the Day-Ahead market - the FlexHL. This spread between the highest and lowest price is the most reliable indicator of your storage asset's daily earnings potential. You decide how much market upside you capture and how much revenue security you need.
How we compare |  | Competitors |
|---|---|---|
Risk Profile | Adjustable | Fixed |
Trading | Human Trader + Bot | Bot only |
Performance Risk | On us | On you |
Bankable Revenues | Guaranteed | Not guaranteed |
Revenue Transparency | Via market factor | Opaque |
The Roadmap to Trading your Battery
Project description
Send us a brief description of your project.
TermSheet
You receive a proposal with a detailed revenue projection.
Contract
You select your revenue model and sign the contract.
Onboarding
Your storage asset is connected to the virtual power plant and prepared for trading
Go-Live
We start trading, you receive your revenues monthly.
HOW WE ROLL
The Only Important Statistic Is The Final Score
"Arbitrage with battery storage in short-term markets is like playing basketball with springs under your shoes. The game gets faster, but also easier and often ends with a crashing dunk." Mirko Thoden, Power Trader at FLEXPOWER
Flexing Numbers
We like to keep it discreet. Still, we understand that people want to see what is happening behind the curtains.
> 1,400
renewable assets
> 2,000 MW
installed capacity
> 11 TWh
traded energy volumes
> € 200 Mio.
trading revenue
> 90%
flexibility in portfolio
24/7
automated trading
6
active countries
The Customer's Perspective
Scope
Maximum yield from co-located PV system and battery storage
“Thanks to the continuous optimization of our 20 MW 50 MWh system combination of PV system and battery storage by FlexPower, we get the maximum out of the system. Due to the constant and close exchange with FlexPower, we can understand and constantly optimize the trading strategy for our system.”
Eelco Rondhuis, Head of Energy Management at PowerField
Power / Capacity
20 / 50 MWh
Batterie Type
Co-Location
PowerMatch - Custom PPAs
PowerMatch is FlexPower's first-of-a-kind PPA platform that enables renewable energy producers and storage operators to trade electricity directly with industrial and commercial electricity consumers.
This way, PowerMatch enables the conclusion of power purchase agreements (PPAs) that supply up to 100% green electricity 24/7/365.
GET IN TOUCH
Your Partner for worry-free Battery Trading
Have we convinced you or do you need more information to optimize the trading of your battery storage system?
FAQ
Frequently Asked Questions on Battery Trading & Arbitrage
FlexPower onboards batteries from 500kW.
FlexPower is able to place your battery on all short-term electricity markets. In particular, this includes: day-ahead spot, intraday auction, intraday continuous, ancillary services: primary control reserve (fcr), secondary control reserve (afrr), and tertiary control reserve (mfrr). We see the greatest potential for flexibility from your battery storage in the spot markets, but "cross-market optimization" can make sense in certain cases.
Yes, you can give us restrictions on when, how often and under what conditions the battery can be traded by us.
The revenue of a battery is always positive over a month. FlexPower assumes responsibility for managing the battery within all the restrictions you communicate to us. Depending on the arbitrage concept and your preference, we can choose more conservative or more risk-oriented trading strategies.
In addition to arbitrage strategies on short-term markets, FlexPower has developed an option you can choose to hedge against falling volatility and thus lower revenues in the long term - Flex-HL. We would be happy to present this PowerMatch option to you in a meeting.
Say Hi!
Citadel FlexPower GmbH
Citadel FlexPower GmbH (formerly CFP FlexPower GmbH)
Lippmannstraße 8
22769 Hamburg
Tel: +49 40 60778-6155
© 2026 Citadel FlexPower GmbH
(formerly CFP FlexPower GmbH)