Cogeneration (CHP)

Sell electricity & reserve power in the Virtual Power Plant

Cogeneration Plants can regulate their output capacity, therefore they are particularly valuable for Virtual Power Plants. They can not only trade their electricity, but also bring positive and negative reserve power to the market. Contact our experts to find out what revenues you can generate in power trading and on the reserve power market. 

Request your revenue calculation now.

More revenues from your CHP-Plant

Our offer

Power trading for Cogeneration plants

We connect your cogeneration plant with the Virtual Power Plant of Next Kraftwerke and give you access to the European energy markets: Simply contact us via the contact form and we will prepare a free offer based on the key data of your plant. If you are convinced of our offer, we sign a contract and integrate your CHP plant into our virtual power plant. Then we can sell your electricity on the electricity exchange and you will receive your revenues.

Overview Connection & Data Exchange Forecasting & Trading Client Portal & Mobile App Revenues

  1. We connect your CHP unit with the control system of our virtual power plant via our own Next Box control interface or via the existing protocol interface of your plant. The operation of your CHP unit is not affected. 
  2. We create an optimal planning for your CHP plant by analyzing the market prices on a quarterly basis. 
  3. We send control signals to your CHP control system so that it can adapt to the optimised power adjustment schedule. 
  4. You get income from the power exchange - more than you would get if you supplied a constant current. We calculate a small and transparent part of your profit for our services.
Connection & Data Exchange

We connect your CHP plant to the virtual power plant via our Next Box interface or via the protocol interface that may already be present in your plant. The system is based on a reliable and tested mobile infrastructure for data exchange. The connection is established via a VPN (Virtual Private Network) with encryption according to IEC 60870-5-104 or Modbus TCP protocols.
Forecasting & Trading

Your generated power is sold on international power exchanges by our team of analysts and traders. The data you have generated with your CHP unit is essential for this task. With the real-time data from every power station in our network, our team can provide reliable forecasts and analyses. We then adjust these based on our meteorologist's forecasts, so that we can sell your energy at a higher profit. This not only guarantees higher profits, but also helps to build and strengthen a flexible energy market.
Client Portal & Mobile App

You can view and manage the status of your plant in our online customer area "My Power Plant". Here you can view loading profiles, modify your data and download your invoices. You can also define offline periods or maintenance periods for your system. Thus, we are informed of the duration of the unavailability of your installation in our virtual plant. "My Power Plant" is accessible from a desktop computer or via our Apple or Android application.


Next Kraftwerke pays you the income from the sale of your electricity on the power exchange. Our real-time data assessment and highly qualified progonoses and analysts enable us to negotiate your electricity very efficiently. No additional fees for you, no trading or market access fees. Another important point: unlike our competitors, we assume the balancing risks ourselves instead of transferring them to you.

Reserve Power: Sell the flexibility of your CHP-Plant

Solar and wind power plants do not always produce the same amount of electricity. This can cause fluctuations in grid frequency, depending on weather conditions. To compensate for this fluctuation, the TSO (transmission system operators) need reserve power – a ressource which you can provide with your CHP-Plant. Because of the slow reaction of nuclear and coal-fired plants to changes in the grid your high-flexible power output is of high value to the power system.

Reserve Power Connection to the VPP mFRR (R3) Auctions & Prices
Reserve Power

  1. Together with you, we analyse which reserve power market offers the highest value for your CHP installation.
  2. The system is connected to the virtual control unit via the Next Box, which allows the system control to react to the TSO setpoints.
  3. To actively participate in balancing markets, your plant must be pre-qualified with the TSO. We take care of this process for you.
  4. After a successful prequalification, your cogeneration plant is valued on the reserve power market. You will receive a capacity fee and, in certain cases, an activation fee.
Connection to the VPP

To sell your CHP-generated power on the reserve power market, a connection to the Virtual Power Plant via the Next Box or the built-in protocol interface is necessary. If the TSO activates a certain amount of reserve capacity, our control system automatically determines the best operating plan and schedules the systems in the Next Pool accordingly.

Next Box: The Next Box is your connection to the Virtual Power Plant. It manages the communication between your CHP-plant and our control system via a secure mobile connection that meets a legally prescribed requirement for the telecontrol capacity of a plant. The Next Box also enables you to operate your system according to a price-based scheme, which opens up additional trading opportunities.

Control system: All plants in the Virtual Power Plant supply data to our control system so that we always have an overview of the available aggregated capacity. Almost all commands executed by the Virtual Power Plant controller are automated via M2M communication. Strict safety standards are complied at any time.
mFRR (R3)

The tertiary reserve capacity mFRR (R3) balances the fluctuations of the network after a delay of 15 minutes. The TSO measures the frequency and places commands to call capacities.

The network operator Elia buys two different mFRR products: R3 standard and R3 flex. The first can be activated for up to 8 hours per day, while the latter can be activated for maximum 2 hours continuously – between two activations there has to be a pause of at least 12 hours. The grid operator pays a capacity fee for both products, but only the R3 standard entitles the grid operator to an energy fee.
Auctions & Prices

Primary, secondary and tertiary reserves are negotiated by the Belgian TSO Elia during auctions on the control reserve markets. Market participants submit initial bids for the capacity price, which are sorted by amount in a merit list. For the secondary and tertiary reserve, successful suppliers participate in a second auction and submit bids for the unit price. If the control pool is required, the suppliers with the lowest price receive the RFx first. Higher offers follow in order. If a control reserve order is placed, secondary and tertiary reserve suppliers also receive the additional unit price. While the FCR and the RRF are subject to a weekly call for tenders, the RRFm is subject to a monthly call for tenders. In addition, Elia offers part of its FCR power on the regional market

Numbers and Facts

Mio Euro 
Aggregated Units
March 2021
Networked Capacity
March 2021

All services under one roof

Next Kraftwerke brings all the experts together under one roof to successfully market your CHP-Power on the power- and reserve-power markets. Our engineers, technicians and traders work closely with our sales and customer service team to ensure the best possible results for you in the electricity market.

Request your non-binding income calculation now

Simply complete the contact form and we will contact you with an offer for your cogeneration plants or call us directly: +32 (0) 2 342 02 68