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CHP for sustainable homes

Joe Bush, Editor


Tags: Energy Efficiency

Topics: Power, Energy Efficiency

shentongroup is helping a new development of contemporary apartments in Mitcham, Surrey, to meet Level 4 of the Code for Sustainable Homes after winning an order to supply its Tedom CHP units

Brenley Park is situated in the 460 acre Mitcham Common, close to the town centre. The £19m development is a joint venture by Willmott Dixon Homes and Notting Hill Housing and offers modern, energy efficient apartments and penthouses. Development partner, the Homes and Communities Agency, a national housing and regeneration body, owns the site and has contributed grant funding of £6m to support the delivery of affordable homes.


As part of the project, shentongroup provided two of its Tedom CHP systems to supply heat and electricity to a total of 169 dwellings, located in eight blocks. They will serve a district heating scheme, taking heating water around the whole site including the more remote blocks of flats. As the heat demand varies, the CHP units are able to modulate their output to suit the varying requirements. This maximises savings by enabling the units to stay ‘on duty’ for more hours each year.

The Tedom Micro T30 units will be installed in a plant room in one of the blocks below residential flats and living areas. To minimise sound levels and prevent disturbance during night time running, the CHP units are housed in sound-proof containers with sound levels of just 60dB(A) at one metre.

In order to meet the exacting standards of the code, the CHP units are Zero Nox emission rated making them a well suited solution for installations within a built environment in urban areas. The high efficiency Tedom CHP systems provide 95% efficiency which means that the scheme’s landlord profits from a reduction on his energy costs whilst the developer and tenants benefit from compliance with carbon reduction legislation.

The Tedom Micro T30 natural gas powered unit produces a maximum electricity output of 30kW, 400V 3-phase, 0.78 power factor, 50Hz at 1,500rpm, and has a maximum hot water output of 62kW each and standard water off temperature of 90°C.  The two CHP units will be maintained under shentongroup’s Infinium24 programme, which is a scientifically designed and monitored ‘perpetual renewal protocol’ that constantly renovates and re-engineers components before their projected replacement date.

“We chose shentongroup because they were able to provide us with an excellent, cost effective product backed by first rate engineering expertise”, said Jason Bedford, senior building manager at Brenley Park. “The company liaised closely with all parties to resolve technical challenges and ensure we conformed to all compliance requirements including G59 regulations.”



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