- Case Studies
Dynex, a world-leading designer and manufacturer of high-power semiconductors and assemblies, is benefiting from an Edina installed and maintained Combined Heat and Power (CHP) solution as part of its sustainability measures.
Combined Heat and Power (CHP) is the cogeneration of electricity and heat from a single fuel source. CHP forms part of Dynex’s sustainability and low-carbon measures to improve energy efficiency and reduce its carbon and water footprint. The CHP plant offers high-efficiency energy utilisation of 95%. Because electricity and heat are produced and used on-site, Dynex will avoid transmission and distribution losses – typically around 7.5% that occur in transporting electricity from the grid.
Further sustainability measures include 300kW roof-mounted solar PV, which generates an average of 19,6423kWh/year, site-wide LED lighting rollout, and improvements in waste recycling. These are just some of the measures enacted as part of Dynex’s commitment to the UK Government’s Climate Change Agreement (CCA) which sets energy reduction targets for the semiconductor industry.
As principal contractor, Edina designed and engineered the CHP engine within an acoustically treated weatherproof enclosure for ease of installation and ongoing asset-care access. Edina delivered, installed, and commissioned the Dynex CHP plant on time and within budget and is maintaining the plant over a 15-year life cycle.
According to the latest 2022 plant availability performance data, the Dynex CHP is averaging a strong hourly availability at over 98% set against a 92.5% industry standard benchmark.
As the authorised official distributor for MWM gas engines, Dynex are benefitting from Edina’s in-market support leveraging its local field services engineers, 24/7 remote plant monitoring and conditioning, and access to genuine MWM parts to ensure the CHP plant remains operational and downtimes are at a minimum.
Working with Dynex and their incumbent mechanical team, Edina were challenged with dovetailing the programme for civil works, CHP installation and commissioning, with Dynex’s own extensive programme to overhaul the full heating and power networks within the site.
From civil works design and installation to lifting operations and final operational testing, both Dynex and Edina worked in synergy to ensure minimum impact to ongoing operations. A further testament to both teams that the project delivery took place during the COVID Pandemic and the unique challenges this posed.
The Dynex CHP plant is fuelled using low-carbon transitionary natural gas and can accommodate hydrogen admixtures of up to 10% without modification to the MWM gas engine. As the gas network greens up and greater concentrates of hydrogen blended into the existing gas network, the MWM gas engine can accommodate 25% hydrogen blends with some technical modification to ensure the safety and best-possible performance and efficiency of the energy generation.
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