Addressing Corridor Overheating on Developments with Community Heating

The increased use of community heating and CHP in residential apartment schemes can lead to excessive overheating in corridors. Our dynamic modelling estimates that temperatures can reach 50oC unless mitigation measures are designed in from the outset. The heat gains are due to hot water being circulated throughout ceiling voids in the corridors and risers [...]

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Big Heat Bills Make Community Heating Inappropriate for Small Developments

A community heating strategy with Combined Heat & Power (CHP) can have a big impact on resident heat bills. This is particularly the case for smaller developments of less than 100 homes where heat bills can be 50% higher than with individual gas boilers. To avoid being committed to an energy strategy that results in [...]

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Planning Success in Nine Elms

Last month planning consent was granted on Bellway Homes’ mixed use development at the old Christie’s Site on Ponton Road within the Vauxhall Nine Elms and Battersea Opportunity Area. The Opportunity Area Planning Framework sets out to dramatically improve area infrastructure and accessibility through extensive redevelopment and future extension of the Northern Line. We worked [...]

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Minister Launches Community Energy Strategy at Woodberry Down

Ed Davey, the Secretary of State for Energy & Climate Change launched the Community Energy Strategy at Berkeley Homes’ Woodberry Down development in North London. Prior to the launch, Donald Sinclair of Richard Hodkinson Consultancy outlined the vision for energy at Woodberry Park to the Minister: – High level of energy efficiency measures reducing demand substantially [...]

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London Plan moves to 40% carbon dioxide reduction on regulated energy

As we reported in September, the Greater London Authority (GLA) has clarified that the move to a 40% CO2 reduction over Building Regulations Part L 2010 (London Plan Policy 5.2) came into effect from the 1 October 2013. This applies to both residential and non-residential development. The GLA is seeking this reduction on all referable [...]

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Masterplanning for District Heat Networks

The location and timing of the provision of Energy Centres on large multi-phase development sites with district heat networks is complex as there are a number of often competing factors: – Overall capital cost Cash flow Operational efficiency & costs (which influences resident energy costs) Phasing flexibility Matching Energy Centre output to development heat demand [...]

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CASE STUDY: CHP viability in domestic scenarios

  In line with the London Plan, energy supply through CHP is becoming the norm in new London developments. The Mayor has introduced mandatory use of CHP in developments of 500+ dwellings through planning guidelines. Nonetheless, Richard Hodkinson Consultancy is experiencing an increasing number of London based Local Authorities demanding CHP on new residential developments, [...]

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Delivery of district heating on phased developments – things to consider

District heat networks (generally with CHP) are increasingly common for medium and large scale developments in order to provide the CO2 reductions necessary for planning policy and Building Regulations compliance. Delivery of these networks on phased developments is complex. For effective delivery, it is important to consider a number of issues at an early stage. [...]

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Should commercial units be connected to district heat networks?

Many predominantly residential developments also contain small ground floor commercial units. Where district heating (including CHP) is proposed for the dwellings, planning authorities generally seek for the commercial units to also be connected. We have concluded that this is not necessarily technically appropriate or viable. The aim of district heating with CHP is to facilitate [...]

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Part L and community energy averaging

Building Regulations require that all dwellings connected to a district heating network are apportioned the same CO2 reduction. This has significant consequences for phased developments where phases are subject to differing planning or Building Regulations requirements. It is important to consider this issue early in the build program to ensure that sufficient provision for Energy [...]

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CHP design considerations

The following issues should be considered at an early stage of design as part of an evaluation of the viability of CHP. Organising a connection to the grid Unless a CHP engine can be connected to the grid, its size may be significantly reduced. This is so that demand for electricity across a development is [...]

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Biomass, deliveries and ash management

How much more attention do biomass boilers really need? The comparison to the ‘stoker’ associated with coal fired steam engines may be unfair and extreme but it does go some way to painting a picture of the difference between biomass and gas fired boilers. Biomass (wood chip or pellet) is a solid fuel which requires [...]

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Community heating – costs to users

Evidence is emerging about the high running costs for community heating schemes that are required to meet planning   requirements. Often these include Combined Heat and Power facilities and biomass boilers in addition to the more  conventional gas boilers. Heat meters are used within each dwelling to measure the heat energy provided through the  circulating hot [...]

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