Edina CHP reduces operational cost by 100k per week at 2nd largest sewage treatment works in the UK
New CHP upgrade and improvements made on-site, significantly improve plant serviceability, power generation, whilst reducing carbon emission at Mogden Sewage Treatment Works.
Following a competitive tendering process in 2015, Costain, one of the UK's leading engineering solutions providers, awarded Edina Group the contract to supply, install and maintain 3 x 2MWe MWM TCG 2020 V20 biogas reciprocating CHP engines as part of the upgrades to the existing CHP system.
Improvements to Mogden Sewage Treatment Works have enabled the facility to increase its sewage treatment capacity by more than 50 percent and meet the tighter effluent quality standards set by the Environmental Agency.
In April 2017, the CHP has just finished its 28 day trial period and is showing some significant results reported by Thames Water. In its first few weeks of operation, reports suggest that the CHP has generated a 47% increase in electricity when compared to the same period in 2015. Although the energy generated does vary week on week, it potentially represents a weekly cost reduction of £123,000 for Thames Water.
Also, Mogden Sewage Treatment Works is 1 of 27 digestion sites, and was reported to be responsible for 16% of the total Thames Water sites generation achieved by waste water.
The project won the 'Best Sewage Treatment AD Plant UK' category at the UK AD & Biogas Industry Awards 2017.
The judges commented, "Edina and Thames Water have presented an excellent entry. Mogden Sewage Treatment Works is a great example of how the performance of a long-standing sewage treatment plant can be upgraded with a collaborative approach and investment in new infrastructure and CHPs."
For more information about Mogden Sewage Treatment Works and CHP, read the case study in full at http://www.edina.eu/gas-case-studies/mogden-stw/.