Technical newsletters about emerging issues & our latest research

MCPD Success for Colindale Gardens

Posted on March 31st 2022

We successfully supported Redrow in their bid for an Environmental Permit under the Medium Combustion Plant Directive (MCPD), for their Energy Centre at Colindale Gardens which provides heat to homes & commercial units on the site. The permit allows the operation of one Combined Heat and Power (CHP) unit rated at 3.6MWth and three gas boilers, each rated at 6.4MWth. …

Read the full article

Driving Sustainability Using Early Stage Environmental Analysis

Posted on March 31st 2022

Environmental analysis at early design stages supports a smooth planning process by driving the sustainability agenda and addressing concerns of councils and residents through a robust design process. By using these tools (example outputs below), a range of environmental indicators can be provided early on, including indications of areas that addressed to ensure that they achieve regulatory standards in terms …

Read the full article

First Birthday of Hodkinson Consultancy Employee Ownership Trust

Posted on February 28th 2022

Our Employee Ownership Trust (EOT) celebrated its first birthday on 24th February. Engagement from the team has always been part of the ethos of the company. Being employee owned builds this into our future, enabling everyone to contribute to the ongoing success of the company and share in its success too. Employee ownership also ensures that the values of the …

Read the full article

How Have Heat Network Customers Been Affected by Utility Price Rises?

Posted on February 28th 2022

Gas Combined Heat & Power (CHP) continues to provides the lowest cost of heat production, protecting residents more from utility inflation than heat networks run just on gas boilers or heat pumps. CHP achieves this through the generation, and sale, of electricity, which has also increased in value. The chart below shows how the cost of heat for 3 different …

Read the full article

Importance of Thermal Bridging in Part L 2021

Posted on February 25th 2022

Developments designed and built to Part L 2021 of the Building Regulations may no longer utilise Accredited Construction Details (ACDs) for thermal bridging junctions. It is still possible to use default thermal bridging values, but one is penalised for taking this route and in many instances, this will cause SAPs to fail Part L fabric energy efficiency. As houses become …

Read the full article

Primary Energy – The Curious New Part L Metric

Posted on February 25th 2022

The addition of a third compliance metric into the new Part L, known as Primary Energy (PE), will push developers further into adopting solutions which demonstrate a high standard of energy efficiency at an infrastructural scale. Primary Energy is best understood as a more complete measure of the energy used in a building, taking into account energy ‘spent’ in the …

Read the full article

New Part L 2021 – The Impact of Heat Losses

Posted on January 24th 2022

Part L 2021 places significant weight on heat network heat losses and will require design enhancements to meet carbon & primary energy requirements. Part L 2013 allows a default Distribution Loss Factor (DLF) in SAP of 1.05 (i.e. 5%), which has always vastly under-accounted real heat losses. The new Part L offers three possibilities: Use a default DLF of 2 …

Read the full article

Water Neutrality Requirements Bring Extra Costs

Posted on January 19th 2022

New water neutrality requirements in North Sussex require all new developments to substantially reduce the water usage of new homes and offset the remainder. Water consumption values need to reduce from the Building Regulation Part G amount of 105L/pp/day for internal water consumption to 85L/pp/day at most. This reduced value can be achieved in two ways: Maximising the water efficiency …

Read the full article

SAP 10.2: CHP Back on the Table?

Posted on January 14th 2022

We now have Government confirmations on how the new Part L and SAP will treat CHP and the results may be more positive than previously anticipated. We previously wrote about the SAP 10.2 proposals regarding CHP. In these, the Government recognised the importance of CHP but the measures proposed were found to not be enough to make them acceptable under …

Read the full article

Will the New Part O Push Central London Developments to use Cooling?

Posted on January 14th 2022

Developments in areas with high external noise levels are unlikely to be able to rely on opening windows to mitigate overheating risk and may be required to install comfort cooling. Approved Document O (Overheating), published on 15th December 2021, sets internal noise limits that must be met in bedrooms during the night. If these limits are not met with windows …

Read the full article