Technical newsletters about emerging issues & our latest research

Be Seen – The new London Plan requirement

Posted on October 22nd 2020

Through their new ‘be seen’ policy, the GLA are seeking to address a performance gap apparent between design estimates and actual in-use energy demands. Whilst the guidance for the policy is still under consultation, the GLA are looking for the following, amongst other items: Installation of gas, heat & electricity meters that enable central collation of data; Submission of design …

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Selection of Pay-As-You-Go (PAYG) units

Posted on October 22nd 2020

Selection of Pay-As-You-Go (PAYG) units is fraught with peril, often restricting available operators and/or increasing residents’ bills. While the industry is moving towards predominantly ‘open’ PAYG systems, most manufacturers only offer access to a limited number of operators. Systems which have Open API offer the most flexibility. However, it may be the case that even when the manufacturer is willing …

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Ensuring your condensation assessment reflects real life

Posted on October 22nd 2020

A more detailed assessment of surface condensation risk can assist in minimising risk of mould growth and maximising construction quality. In high risk areas, particularly around window frames and bathrooms, it is important to make sure that the humidity is considered to reflect a range of real-life scenarios – so a more detailed methodology that accounts for varied environmental scenarios …

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ESCO success at Redrow’s Colindale Gardens

Posted on September 17th 2020

We are very pleased to have assisted Redrow Homes in successfully completing their Energy Centre at Colindale Gardens and handing over operation to an ESCO. Colindale Gardens is a scheme of around 4,000 homes in north London which we’ve been working on from the outset in 2015. With Redrow we developed a Heat Network Masterplan that set the strategic design …

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Overheating Guides for Residents to Improve Customer Satisfaction

Posted on September 17th 2020

Educating residents on how to keep their homes cool during summer months is just as important as designing overheating mitigation measures. In addition to being more comfortable, this should give rise to fewer customer complaints. Homes are designed for people to live in. Whilst modelling is based on standardised assumptions, all homes are used differently, and people may have different …

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Time running out on Part L 2013

Posted on September 16th 2020

Registrations under Part L 2013 and the existing transitional arrangements may be about to close. In their recent Planning White Paper the Government signalled their intent to respond to the Future Homes Standard consultation this autumn. This may include finalising the incoming Interim Part L and giving notice of its introduction in 2021. When this notice is given it is …

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Circular Economy – What you need to know

Posted on September 16th 2020

Adhering to the new Greater London Authority (GLA) requirement for Circular Economy Statements is going to be much more than tick box a exercise. Over time it will require developers and design teams to fundamentally change the way they design buildings, encouraging innovative and long term thinking about the buildings they are designing. Three separate reports are required through the …

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The End of RHI – Lost Income to Heat Networks

Posted on August 12th 2020

The phasing out of the Renewable Heat Incentive (RHI) scheme from 2022 is expected to push up costs to residents on heat networks with newly installed heat pumps, but may provide installation subsidies for individual dwelling systems. The RHI is a generation-based subsidy, providing a continuous revenue stream (pence/kWh) to registered participants for every unit of heat outputted. Plant within …

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How pre-testing balcony connectors for thermal bridging brings certainty to your project

Posted on August 12th 2020

Pre-testing psi-values of balcony connectors and thermal breaks enables their consideration from the outset, with untested products ignored due to uncertain thermal performance. Since balconies are especially susceptible to increased heat losses due to the thermal bridging effect, their performance is crucial to meet the energy targets. While it is recommended that bespoke thermal calculations are undertaken for the balconies …

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Lower DHW temperatures will reduce heat network costs

Posted on August 12th 2020

New guidance is likely to allow lower heat network operating temperatures, thus helping to minimise heat losses, lower risk of overheating, maximise contributions from heat pumps and consequently deliver better carbon performance. To date, lowering hot water temperatures has been hindered by some building warranty providers which has a requirement for delivery of hot water at the kitchen tap at …

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