Revelop Nattvakterna: AI-Driven Energy Efficiency in Office Buildings

From EPC D to B with a 40% Reduction in Energy Consumption

Swedish real estate company Revelop is demonstrating how existing buildings can be transformed into more sustainable, energy-efficient assets. In partnership with Myrspoven, Revelop implemented AI-driven energy optimization at the Nattvakterna office buildings in Stockholm, achieving a 40% reduction in energy consumption and improving the properties’ EPC rating from D to B.

The project highlights how AI can support real estate owners in reducing energy use, lowering emissions, and improving the long-term performance of existing buildings.

“We see the collaboration with Revelop as key in achieving the environmental impact we strive for at Myrspoven, and Revelop’s goals align very well with ours,” says Anders Kallebo, CEO at Myrspoven.

Transforming Existing Buildings

Revelop is a Swedish real estate company focused on transforming under-managed "brown" assets into attractive, sustainable "green" locations. Rather than demolishing and rebuilding, Revelop upgrades and refurbishes existing buildings, extending their lifespan while reducing environmental impact.

The company’s portfolio includes strategic acquisitions across major Swedish regions, including Stockholm and Gothenburg, all aligned with its long-term vision of revitalizing real estate for a more sustainable future.

The Revelop and Myrspoven Collaboration

As part of its transformation strategy, Revelop works with technology partners such as Myrspoven to improve energy performance across its properties.

One standout example is Nattvakterna, a group of office buildings in Stockholm where Myrspoven’s AI-powered energy optimization system played a key role in improving the properties’ EPC rating from D to B.

An EPC rating measures a building’s energy efficiency on a scale from A to G, with A being the most efficient. By improving Nattvakterna’s rating, Revelop reduced the buildings’ environmental impact while also achieving significant energy savings.

Like many older office buildings, Nattvakterna faced challenges with high energy consumption and operational inefficiency. Revelop addressed this through a structured business plan focused on energy-saving measures.

“When we acquire a property, we conduct a full technical due diligence with our internal team. From there, we set up a business plan that includes all potential energy-saving measures, whether it’s new insulation, modernized HVAC systems, or AI-driven energy management,” says Anna Brännström, Head of Sustainable Transformation at Revelop.

Implementing AI to Improve Energy Performance

The business plan was put into action during the refurbishment of the Nattvakterna office buildings, which together cover more than 16,000 square meters.

After key infrastructure upgrades, including a new plant room and ventilation with integrated cooling, Myrspoven’s AI platform, myCoreAI, was integrated to optimize energy use.

myCoreAI analyzes data from the building together with external data sources, such as weather forecasts and occupancy patterns. Based on each building’s unique conditions, the system creates a tailored optimization strategy that continuously improves energy performance while maintaining a comfortable indoor climate.

The results were significant: energy consumption was reduced by up to 40% across Nattvakten 6, 7, and 10.

“We’re very pleased with the results. Myrspoven’s myCoreAI helped us reduce energy consumption by 40% across Nattvakten 6, 7, and 10. Improving the EPC rating from D to B is a major step forward in our sustainability efforts,” says Anna Brännström.

Results at a Glance

• 40% reduction in energy consumption
• EPC rating improved from D to B
• More than 16,000 m² of office space optimized
• Improved building performance and indoor climate
• Supports Revelop’s long-term net-zero ambitions

A Scalable Model for Sustainable Real Estate

The transformation of the Nattvakterna office buildings demonstrates how older properties can be modernized to meet today’s energy and sustainability standards.

By combining Revelop’s redevelopment strategy with Myrspoven’s AI-driven optimization, the project improved building performance, reduced energy consumption, and supported a more sustainable approach to property management.

“We see AI as an important tool in the sustainable transformation of real estate and in achieving our net-zero targets. As we continue to grow our portfolio, we will continue to work with Myrspoven as one of the solutions helping us meet our ambitious energy targets,” says Thomas Sipos, CEO of Revelop.