INDUSTRY COMMENT: NIBE
From decarbonisation to energy independence
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Lindsay Sugden, regional manager international affairs, NIBE AB argues that energy independence has eclipsed decarbonisation as the primary argument for ending reliance on fossil fuels. Decarbonisation and energy independence together, will shape our industry for decades to come, she says
eopolitical instability is the new ‘normal’, and energy supply is increasingly being used for political leverage, driving volatility in international fossil fuel
markets. Energy is no longer viewed solely as an environmental challenge. Increasingly, it is about resilience, security and control. For the building services sector, this shift has major implications because as our energy priorities evolve, so too does the role of the buildings we design.
Buildings are no longer passive energy users
Historically, the energy performance of buildings has been assessed through the familiar measures of efficiency, emissions, operational costs and regulatory compliance. These metrics remain essential, but increasingly buildings are also being viewed as active participants in wider energy systems, which are central to our energy independence. Every design decision, whether related to heating generation, thermal storage, ventilation strategies, controls or system integration, has implications far beyond the building envelope itself. It determines whether consumers will be locked into fossil fuel consumption for the next 20 years. It determines whether building energy demand can be flexed to manage grid congestion, flatten peak demand or maximise consumption of renewables when the wind is blowing. It influences the long-term investment needed to ensure resilient national energy infrastructure (in particular electricity grids). The role of building services engineers is becoming broader and more strategic, as demand grows for not only low-carbon, but flexible and energy- independent buildings. Today, the challenge is creating buildings that can operate efficiently and reliably in this more complex energy environment – and that requires a different way of thinking.
Heat pumps are central to energy independence
Heat pumps are often positioned primarily as a decarbonisation technology, and rightly so. By replacing fossil fuel heating systems with highly efficient electrified solutions, heat pumps can significantly reduce operational emissions and support national Net Zero targets, but their strategic value goes far beyond carbon. Heat pumps reduce our dependence on imported gas. The industry association HPA UK calculates that almost 6M heat pumps replacing gas boilers between now and 2035 could cut 63TWh from the UK’s annual
gas consumption. That is equivalent to one fifth of the UK’s gas imports. Every building that transitions away from fossil fuel heating reduces dependence on imported energy. Every electrified heating system strengthens resilience against fuel price volatility and every well-designed low-temperature heating system creates new opportunities for flexibility within the grid. This is where building services engineering becomes especially important. The performance of a heat pump system is not determined by the product alone. It is dependent on the quality of system design, the building fabric, the control strategy, thermal storage integration and how effectively demand can be managed across the lifecycle of the building. When these elements are designed together, heat pumps become more than heating systems; they become part of long-term energy infrastructure.
Compliance is only part of the question
As the industry’s priorities shift, consultants and specifiers are being asked to think beyond traditional performance metrics. Efficiency ratings and compliance targets remain important but project teams are increasingly considering wider strategic questions:
• How resilient is this building during periods of energy market volatility?
• How adaptable is the building’s energy use during periods of peak demand?
• How exposed is it to future fuel price risk?
• Can its systems support changing grid conditions over the next 20 years?
These are not theoretical discussions any longer. Developers want future-proof assets; housing providers want predictable operational performance; governments want to reduce dependence on imported energy, and occupants want greater certainty over long- term running costs. Together, these shifts place building services engineers at the centre of one of the most important infrastructure conversations of our time.
Designing for what comes next
The UK’s decarbonisation ambitions remain essential and technologies such as heat pumps will continue to play a major role in achieving them but the context around energy is changing. Success won’t be defined solely by how efficiently buildings reduce carbon emissions. It will also be defined by how effectively those buildings contribute to energy resilience, flexibility and independence.
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13/4/26 16:12 BUILDING SERVICES & ENVIRONMENTAL ENGINEER JUNE 2026 25
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