Featured in The power puzzle – 06 – 2026

Lower temperatures, higher heat pump efficiency

A large-scale study of UK heat pump installations has revealed a major gap between hypothetical performance and real-world data. Changes to commissioning could make all the difference. pv magazine caught up with Oxford University’s Jan Rosenow and Heat Pump Monitor’s Trystan Lea to hear how installers can achieve higher seasonal performance factor (SPF) ratings for their customers.

By

Matthew Lynas

27 Jun 2026

06014_MCS_heat_pump_Apprenticeship_scheme_image

The quality of commissioning work will impact heat pump efficiency and, when done correctly, can result in major cost savings over a system’s lifespan. UK heat pumps must be installed by an MCS Certified installer to be eligible for grant support from the government’s Boiler Upgrade Scheme. | Image: MCS

A large-scale study of UK heat pump installations has revealed a major gap between hypothetical performance and real-world data. Changes to commissioning could make all the difference. pv magazine caught up with Oxford University’s Jan Rosenow and Heat Pump Monitor’s Trystan Lea to hear how installers can achieve higher seasonal performance factor (SPF) ratings for …

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