• 15% saved from monthly energy bill
• 120t of CO2 emissions reduced annually
• 21MWh maximum automated flexibility
• 0% of core business affected

Neeme Takis
Fusebox Head of Technology

With the Fusebox solution, it was possible to use the entire capacity of the pumping station during the cheapest hours, stopping the operation of the pumping station completely for the most expensive hours. The cheapest hours are found automatically and continuously by the software, monitoring the electricity exchange price. Several hours a day is enough to pump, Fusebox software calculates the water level based on the information.

The biggest savings for KNT come from running the pumps at market price. However, the Fusebox solution also allows the use of the pumping station to be controlled in order to balance the electricity network. By responding to the control signals sent from the Fusebox server on the basis of Elering’s orders, about a third of what is saved by monitoring the stock price is earned.

Results

Fusebox’s solution is in line with both the pumping station’s equipment and the principle that operating the pumping station must be financially profitable. To this effect we have earned 7776€ in the fourth quarter of 2021 by regulating 63.5 MWh of network load. This amounts to 32 tons of CO2.

As the change in water level in a quarry is slow, there is usually no need to use more than half of the pumps at the same time, and if necessary, all pumps can be stopped for hours. Largely, more frequent shutdowns have not affected us, as the required amount of water will be pumped out of the quarry by the end of the month, and the priority of the water level sensor in the software will ensure that the quarry is not flooded remotely. On the other hand, the frequency of pump switching has increased approximately three times, and technical maintenance personnel keep an eye on the cost components of the pumping station.