We provide balance and capacity services in the Nordics

Power Without Compromise

Reliable and Fast

Primrock provides balance and capacity services. We operate decentralized units supplying adequate power with highest possible reliability, precision and speed. Our facilities meet the need for reserve capacity to maintain stability in the Nordic synchronous system as well as power flexibility and quality at the local level.


Primrock is the first company to provide frequency containment services in Sweden from a decentralized energy storage system. Our independence allows us to bring novel, efficient and user centric solutions to the market. We create value with an innovative multi-functional and responsive design and business model.

Supporting Sustainability

Primrock supports the expansion of renewable power generation by providing capacity that can be used as synthetic inertia and for frequency restoration after grid disturbances. In addition, our capacity services facilitate the electrification of new sectors, notably by enabling a rapid introduction of electric


Partner with Primrock

Primrock operates facilities capable of supplying local power capacity in addition to our grid services. We offer local customers the opportunity to buy power flexibility and power quality as a service. Our system is based on a combination of physical components and sophisticated controls that create substantial leverage and capacity to meet varying local needs, e.g. ultra-fast EV charging. Please contact us for more information about our capacity services.

Invest with Primrock

Primrock develops distributed facilities providing capacity and balance services. Our expansion involves additional capacity to meet the increasing demand for reserves in the Nordic system and a forthcoming need for local capacity to serve a growing fleet of electric vehicles. Institutional and professional investors can invest with us in physical capacity and decentralized system solutions. Please contact us regarding financing of our future capacity.

Work with Primrock

Primrock seeks talent that wants to work hard to make a difference. We search for souls excited by the idea of developing technology and services for a sustainable future. We search individuals motivated by challenges that require a systemic and rapid change through innovation and investment. We seek people capable of supporting decision making based on systematic analysis of data. Please contact us regarding career opportunities. [NOW HIRING!]


Primrock operates the first energy storage system to provide frequency containment services to the Swedish TSO, Svenska Kraftnät. The facility has a 0,6 MW capacity and was developed as a research project with financial support from the Swedish Energy Agency. Hardware and software were developed and approved by Svenska Kraftnät in 2019. The system started commercial operations and providing capacity to the Nordic synchronous system in the beginning of 2020. It consists of two identical and independent systems working in parallel. In 2021, the experience from Delaktig has been used for a significant scale-up in Primrock’s capacity. By the end of 2021 we expect to have increased or market share in balancing markets tenfold.

The Primrock Powerbank™

The main building block of our scalable and decentralized capacity is the Primrock Powerbank. It is a power module with capacity to provide multiple services, including peak load capacity and power quality improvements. It works at standard voltage with alternating current and can be used in any regular installation. Our proprietary design yields significant local flexibility, even with limited use of DSO capacity. It permits scaling and expansion with additional units connected in parallel depending on local needs. In the Spring and Summer of 2021 we have successfully deployed 12 units of the Primrock Powerbank. We are currently preparing a large number of new units soon to be ready for commissioning.


Gustav Bergquist is the CEO of Primrock . He has more than 10 years of experience from critical infrastructure. Gustav is a multi faceted tech guy with a business administration background. He likes to engage with customers, and he enjoys a challenge. He is passionate about building critical infrastructure to support the transition to a 100% renewable energy system. Gustav also serves as the Chairman of the Board at the Swedish Datacenter Industry Association.

Gustav Bergquist


Mattias Ganslandt is a PhD and Associate Professor (affiliated) at Lund University. He has published extensively in international peer review journals. He has spent the last 10 years inventing and developing new services and market designs in the energy sector. His passion is to provide innovative solutions that supports a faster transition to a sustainable economy. In his spare time, he enjoys cross country running and skiing, on and off the beaten path.

Mattias Ganslandt


Regulatory Update 07 December 2022

Svenska Kraftnät Increases Procurement of FCR-D Down
210 MW FCR-D down will be procured during the first quarter of 2023 for all hours of the day, which is an increase of 45 MW. Svenska kraftnät began procuring the new support service FCR-D down on the 1 January 2022. This is a frequency holding reserve and is used to stabilize the frequency in the event of operational disturbances. The procured volume FCR-D down will continue to increase gradually as the pre-qualified volume increases.
Wind Power Expected to Lower Electricity Price
New wind power that will be added in 2022–2025 will reduce the annual average price of electricity by 37 öre per kWh in Sweden, Sweco assesses in an analysis commissioned by Swedish Wind Energy Association. This corresponds to SEK 7,500 per year for an average villa. In the longer term, when today’s very high electricity prices have returned to a more normal level, wind power will continue to push the electricity price down by 17.5 öre/kWh.

Svenska Kraftnät Signs Counter Trade Agreement

Svenska kraftnät has signed an agreement with Eon to make up to 80MW capacity at Heleneholmsverket available to Svk as counter trade capacity (depending on the operating situation). The agreement is valid until March 31, 2023. Heleneholmsverket is a cogeneration plant that can produce district heating and is fired with biogas, natural gas or oil. In May, Svenska kraftnät invited proposals for power generation or demand response units in southern Sweden which don’t currently participate in existing markets but could provide capacity for counter trade if SVK signs a procurement agreement.
We keep an eye on regulatory developments and activities related to grid standards, the EU single market, Nordic TSO co-operation and national legislation. We regularly publish updates on the regulatory development with relevance for our business.

Contact Us

We are incorporated under Swedish law and headquartered in the Capital of Scandinavia

Primrock AB
Stora Skuggans v 32
SE-115 42 Stockholm, Sweden
[email protected]

Photographer: Kristina Sahlén
© Primrock, 2020-2021

Power Without Compromise

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