We’ve managed NISEP on behalf of Northern Ireland’s Utility Regulator for the last 20 years.
NISEP has been particularly successful in targeting homes with inadequate insulation and inefficient heating systems. In 2024/25 we delivered £10 million* in energy efficiency and renewable energy measures to homes and non-domestic properties throughout Northern Ireland. This includes an additional capital funding allocation of £2.3m provided by the Department for the Economy to NISEP, for three domestic insulation only schemes. This will enable more lower income households reduce their energy use and carbon emissions.
Thanks to our successful management of NISEP, a range of energy saving measures have been installed by:
homeowners
private tenants
housing associations
non-domestic / commercial properties
Domestic measures installed* include:
2,091 installations of loft insulation
1,555 installations of cavity wall insulation
27 installations of solid wall insulation
823 boiler upgrades / replacements
14 air source heat pumps
4,382 LED lightbulbs
101 hot water tank jackets
717 low-flow / eco-shower heads
269 reflective radiator panels
312 smart heating controls
Non-domestic and commercial measures installed* include:
Three boiler replacements
3,715 LED lightbulbs
16 solar panel systems
Six intelligent heating controls
21 variable speed technologies
These upgrades can help people and organisations save on their energy bills and lead to healthier homes. They also improve the environment as 5,176 tonnes of annual CO2 emissions* were saved through the programme in 2024/25.
*figures provided are pre-audit figures and are subject to change.
Who's eligible for NISEP funding?
80% of NISEP funding is income based for domestic schemes. The remaining 20% is non income based for domestic and non-domestic/commercial schemes.
Applicants accessed the funding through 20 energy efficiency schemes that were delivered by 10 organisations across Northern Ireland. Some schemes were fully funded by NISEP and others were part-funded. This included one non-domestic / commercial scheme that offered 20% funding towards installing energy efficiency and renewable energy measures.
NISEP itself is funded by a levy on all domestic and non-domestic / commercial electricity bills in Northern Ireland.
Energy Saving Trust currently carries out the role of Programme Administrator for the Northern Ireland Sustainable Energy Programme (NISEP), managing an average annual budget of £8 million across multiple schemes delivered by a range of organisations. Consistent programme delivery provided by Energy Saving Trust allows funding to be distributed to a variety of energy efficiency schemes across Northern Ireland, the majority of which are targeted at vulnerable consumers.Utility Regulator
Read our 2024/25 impact report
Find out more about how we're supporting energy action for a better future in our 2024/25 impact report.
