top of page
The HEMline blogger
The Home Energy Model (HEM) is a new way of measuring the energy performance and predicted running costs of dwellings in the United Kingdom.
Once launched, the HEMline Blogger will offer hints and tips to explain what HEM is and how to use it. You'll find posts to help assessors of all levels from novice experimenters to seasoned, accredited assessors.

Search


Speeding Up Build Out consultation
This proposed change to national planning policy would include a requirement for sites of 50+ dwellings to submit a build schedule as part of the planning application, and for developers to inform the council if timeframes are slipping.

Jon Ponting
Jun 82 min read


EPC reform needed to help UK's retrofit market
House of Commons committee gives blunt but honest review of the current EPC process, and calls for reform to improve the accuracy of the information on the energy certificates.

Jon Ponting
Jun 12 min read


Have Your Say on The London Plan 2026
The London Plan is being updated next year. In our world, this will likely mean stricter targets on embodied lifecycle and net zero targets, but will the Future Homes Standard influence the final text?

Jon Ponting
May 252 min read


Solar canopies.. coming to a supermarket near you!
Car parks across England may need to have solar panel canopies installed under new proposals to increase renewable power generation.

Jon Ponting
May 182 min read


Welcome to SAP10.3
When Part L changes next year, there will be two routes to compliance - using SAP10.3, or the new Home Energy Model. This allows HEM a chance to bed in, and means industry can continue using the familiar SAP tools for a while longer.

Jon Ponting
May 112 min read


Will PV be mandatory under Future Homes Standard?
It's being reported that solar panels will be mandated on all new homes as part of the UK Government's Future Homes Standard policy; due for publication later this year.

Jon Ponting
May 42 min read


Beeb presenter banned from making heat pump podcast
Was the BBC right to force its presenter to quit a podcast that promoted heat pumps? Are heat pumps at risk of political bias because of their links with net zero? This truly is a baffling decision by a respected media outlet that should know better.

Jon Ponting
Apr 272 min read


Home Quality Mark rebrands to BREEAM
The UK's Home Quality Mark assessment, launched in 2015 to replace to Code for Sustainable Homes, is being rebranded as BREEAM UK New Construction Residential.

Jon Ponting
Apr 202 min read


Joining the Smart Meter revolution
After years of living with a faulty Smart meter, I've just had a replacement one installed. In the UK, 9.6% of Smart meters don't work properly, and it can be difficult to have this rectified by the energy supplier.

Jon Ponting
Apr 132 min read


rdSAP10 set to arrive in June 2025
Domestic Energy Assessors are expected to switch to rdSAP10 from June 2025. This will improve the accuracy of EPC assessments.

Jon Ponting
Apr 62 min read


How can we account for PV degradation and maintenance?
Over the years, the performance of PV panels drops. From my own experience, generation can reduce very quickly unless panels are cleaned.

Jon Ponting
Mar 243 min read


What is the Future Homes Standard?
The Future Homes Standard is a UK Government policy that’s reshaping how we design new homes so they’re far more energy efficient.

Jon Ponting
Mar 174 min read


FutureBuild 2025
The HEM Blogger's day out at FutureBuild 2025, talking about the Home Energy Model and new innovations in building services and materials

Jon Ponting
Mar 104 min read


EPC Reform - Consultation closed
A summary of what is proposed in the UK Government's EPC Reform consultation.

Jon Ponting
Mar 34 min read


Private Renters EPC Consultation - Landlord Exemptions
The 2025 PRS MEES consultation suggests increasing the minimum energy performance of privately owned dwellings, and increasing the amount of

Jon Ponting
Feb 242 min read


Private Renters EPC Consultation - Impact on Assessors
The 2025 PRS MEES consultation suggests using new-style EPCs to judge whether a privately rented home will need upgrading for better energy

Jon Ponting
Feb 172 min read


Private Renters EPC Targets - Consultation
The 2025 PRS MEES consultation suggests increasing the minimum energy efficiency standards of privately rented homes, forcing landlords to i

Jon Ponting
Feb 102 min read


Seriously though... how complex is the Home Energy Model really?
The proposed new Home Energy Model is expected to be published by the UK Government mid-2025. There's already plenty of anxiety about how mu

Jon Ponting
Feb 32 min read
bottom of page