heat networks
Round 12 of the Heat Network Efficiency Scheme (HNES) is expected to open on 7 April 2026 and close on the 22 May 2026. HNES continues to play a central role in improving the performance of existing district and communal heat networks across England and Wales by providing both capital and revenue funding for eligible projects.
As demand for funding grows, beginning preparations early significantly increases the likelihood of success. Switch2 has extensive experience in supporting applicants throughout the HNES process and can help you submit a strong and well evidenced application.
Why You Should Prepare Early
HNES operates across several annual funding rounds until at least 2027 to 2028. Although multiple rounds remain, competition has continued to increase each year, and there is only a finite amount of funding available. Preparing early delivers several advantages.
A stronger capital application
Successful capital applications provide clear evidence of performance issues and demonstrate how proposed interventions will improve efficiency, reliability and customer outcomes. This requires time, technical assessment and strong supporting data.
More accurate project scoping
Optimisation Studies form the basis of any capital application and often identify additional opportunities for improvement which operators are unaware of. By submitting a revenue application now for an Optimisation Studies, owners and operators are giving themselves the best opportunity for a successful future capital application.
A smoother submission process
The requirements for HNES applications are detailed and technical. Early preparation reduces risk, avoids unnecessary pressure and allows sufficient time to refine supporting documentation.
Switch2’s Proven HNES Track Record
Switch2 is one of the most experienced partners supporting HNES funded projects. To date, Switch2 has delivered more than 70 compliant HNES surveys and secured over £10 million pounds in capital works and revenue funding for clients. These projects have also identified more than 392 gigawatt hours of potential gas savings over 15 years, representing significant carbon reductions.
This experience equips Switch2 with a strong understanding of how assessors review applications and the type of evidence that creates a compelling submission.
How Switch2 Supports Your HNES Round 12 Revenue Application
Switch2 provides end to end support throughout the application process:
With more than 40 years of experience in operating residential heat networks, Switch2 can translate technical findings into clear evidence aligned with HNES criteria.
Get Ready for Round 12 with Switch2
Round 12 represents a valuable opportunity to improve efficiency, reduce operating costs and support better outcomes for customers. Switch2 can help you understand your funding options, prepare a clear and persuasive application and plan your next steps with confidence.
Book a readiness review with Switch2 to discuss your HNES Round 12 application.
