Monsson

Monsson

Monsson Energy AB

Stockholm, Sweden

SolarWindEnergy StorageHydrogen
Founded 1997201-500 employees78 MW installed
Profile last updated: October 28, 2026

About

Founded in 1997, Monsson is a renewable energy company headquartered in Stockholm, Sweden with approximately 201-500 employees specializing in Solar, Wind, Energy Storage.

Monsson is a Romanian-founded renewable energy group active in wind, solar PV, battery energy storage, green hydrogen and energy trading. It covers project development, EPC, operation and maintenance, asset management, software for energy storage and virtual power plants, and renewable energy training through its RenewAcad and training centres. The group reports having developed and sold more than 2.8 GW of wind and 2.1 GW of solar projects, and owns about 78 MW of operating capacity.

Headquarters

Stockholm, Sweden

Founded

1997

Employees

201-500

Focus areas

renewable energywindsolar PVbattery energy storageBESSgreen hydrogenEPCO&Menergy tradingvirtual power plantsrenewable training

Products & services

Business models

B2B

Value chain

DevelopmentEngineeringProcurementConstructionO&MAsset ManagementConsultingAdvisoryTradingR&D

Service areas (5)

  • Renewable Energy Project Development

    Site identification, feasibility studies, permitting and financing for wind, solar and storage projects.

  • Battery Energy Storage Systems

    Design, supply and EPC delivery of utility-scale BESS, including performance guarantees and technical operation services.

  • Operation & Maintenance and Asset Management

    O&M, remote monitoring, dispatching and asset management for wind, solar and BESS assets.

  • Energy Trading

    Energy trading and supply services in the South Eastern Power Market.

  • Renewable Energy Training

    GWO, BZEE and PV training courses for renewable energy technicians.

Locations

Headquarters

Klarabergsviadukten 63, Stockholm, Sweden

Operating locations (3)

  • Charles de Gaulle Plaza 15, Bucharest, Romania
  • Tomis Boulevard 480, Constanta, Romania
  • Hohe Bleichen 22, Hamburg, Germany

Service regions

RomaniaSwedenEurope

Projects

6

Vänern Wind Farm

OperationalOffshore wind farm

Offshore wind farm on Lake Vänern with 10 turbines; Monsson holds O&M responsibility since 2017.

Sweden

Mireasa 1 Wind Farm

OperationalOnshore wind farm

50 MW wind energy project in operation, part of a hybrid renewable complex with Galbiori 2 solar PV and energy storage.

50 MW capacityRomania

Galbiori 2 Solar PV

Solar PV

35 MW solar PV project forming part of a hybrid renewable complex with 54 MW x 4 h energy storage.

35 MW capacityRomania

Härryda BESS

Battery storage

20 MWh battery energy storage project in Härryda, western Sweden.

Härryda, Sweden

Green Hydrogen Production Facility

Green hydrogen

Green hydrogen production facility with a 20 MW electrolyser, hydrogen storage and truck filling plant.

Romania

Silistea 1 Wind Farm

Onshore wind farm

Wind farm project in Romania operated by Monsson.

Romania

Credentials & affiliations

Certifications

DNV certification for battery energy storage system safety

Issued by: DNV

Industry memberships

Global Wind Organisation (GWO)BZEE Training Network Association

Partnerships

Prime Batteries, Innovent, Kyrkvinden

People

Management & team (4)

Frequently asked questions

published by the company
Can I book my training online?

Yes. You can book online the trainings 24/7 via our online booking platform. You can see if we have ongoing course or we have something planned for the future. Our training is usually working at full capacity so please make sure you can book in time. For online bookings please access this link: www.gwo-training.eu/contact-us/

Can I pay with Credit card?

Yes. You can pay with credit card in our training centres in Constanta and Petrosani. Please call us in advance for any other payment methods.

Do you design and develop renewable projects on demand?

Yes. If you have land, or a suitable location for a renewable energy project, contact us and we will make a proper assessment of the location. If the site has a proper location, grid connection and the land rights are secured, we can partner together for a RES Project.

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