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Can the next Mayor make London a world-leading city for energy efficiency?

There are around 775,000 homes in London with a poor energy efficiency rating. We need investment in these homes to transform them into comfortable, healthy dwellings that are a pleasure to live in, contribute to managing our carbon emissions, and are resilient to future energy price rises. There can be a tendency to see London’s homes as too hard or expensive to treat, but let’s stop and think about that for a minute. Yes, there are around 800,000 homes that are in need of solid wall insulation, but there are also over 750,000 that could benefit from cavity wall insulation and over 500,000 that could use improved levels of loft insulation. And having a solid wall home doesn’t mean you can’t reach a reasonable level of energy efficiency. I’ve seen Energy Performance Certificates for London semis giving them C ratings or above, and there are 40 homes in London in the SuperHomes database.

It’s harder to find comprehensive statistics on the state of the non-domestic stock, but 70% of Display Energy Certificates and 66% of Non-Domestic Energy Performance Certificated lodged across London have a rating of D or below.

Domestic EPCs rated E, F or G

Domestic EPCs rated E, F or G

Display Energy Certificates rated E, F or G

Display Energy Certificates rated E, F or G

So, can the next Mayor build on what Boris has started, through RE:NEW and RE:FIT?  The front-runners certainly seem to think so, judging from their manifestos. Zac Goldsmith wants ‘London’s homes to be as energy efficient as possible’ and wants to trial low interest loans, stamp duty rebates and council tax rebates, as well as applying the Dutch Energiesprong model to retrofit London’s tower blocks. He has also pledged to include minimum energy efficiency standards in the London Rental Standard and to back the London Plan’s commitment to Zero Carbon Homes. Sadiq Khan plans to establish Energy for Londoners – ‘a not-for-profit company providing a comprehensive range of energy services to help Londoners generate more low-carbon energy and increase their energy efficiency’. He also refers to energy efficiency standards for new developments and commits to ‘make sure City Hall and all other GLA buildings maintain the highest environmental standards on heating, lighting and waste.’

All interesting ideas, with potential, but they are only a start. We look forward to working with the next Mayor to help make sure that not only do their current ideas achieve their potential, but also that the level of ambition is raised and London becomes a world leader in its low energy building stock. As a start, we have called for the next Mayor to introduce a London-wide minimum efficiency standard for rented homes of EPC Band C by 2025. The opportunity for improvement outlined at the beginning of this blog translates to £4.7bn investment in London’s built infrastructure, would directly support the full-time employment of 2,800 Londoners, along with a further 13,000 jobs up and down the supply chains, each year from now to 2030; not to mention the increased health and wellbeing that comes from living and working in buildings with high energy performance. An opportunity like this must not be missed.

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Comments (1)

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    Melin Consultants

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    It certainly looks as though Sadiq Khan is going to follow up with his plans to increase energy efficiency in the capital city.

    We wrote an article on The London Plan last month and as specialists in Part L of the Building Regulations, it is a very interesting topic. The new zero carbon incentives are said to be up to 35% tougher than current Part L Building Regulations, meaning people have to do a lot more to meet the new standards. Here is a link to the article for anyone who is interested:

    http://www.melinconsultants.co.uk/the-london-plans-zero-carbon-incentive-31.html

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