Downloads / Energy demand

Decentralisation Issues: The Economic Value and Carbon Dioxide Emission Implications of Community Heating Network versus Micro Combined Heat and Power Energy Provision in the UK

Adam Hawkes and Matthew Leach, Imperial College Community heating (CH) provides a potentially economic and efficient means of supplying heat to a number of buildings.  It has been a successful method of integrating high-efficiency fuel-flexible combined heat and power (CHP) in the energy supply system in countries such as the Netherlands and Denmark, and is attracting renewed interest in the UK.  This paper compares the cost and carbon dioxide emissions of meeting energy demand for a group of residential dwellings using three different methods of delivery; conventional, separated production of electricity and heat (i.e. grid electricity and household boilers), residential micro-CHP, or a single large CHP generator combined with a CH system.  As capital costs of CH distribution systems are highly scheme dependent, the analysis focuses first on modelling difference in annualised costs (operating cost plus annualised generating equipment cost) between the three options without adding the cost of the CH system. This allows identification of the ‘break-even’ capital cost for the CH system (i.e. the capital investment for the CH system that results in its total net present cost Read more…

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20th
Sep
2006

UK Gas and Electricity Supplies: A review of the winter 2003-04

John Greasley and Simon Griew, National Grid Transco Sets out the pre-winter view from Grid; in respect to gas covering: transportation requirements; gas forecasts; plant mothballing status; changes to market rules; gas/electricity interactions; CCGT interruptions; and proposals to mitigate negative impacts. Consideration is also given to electricity covering: plant margins; market signals; and the positive and negative key uncertainties going into winter including generation and interconnector availability. This is considered against winter demand based on temperature profile and average weekly ACS demand. The interactions between gas and electricity are discussed in respect to: GB gas-fired power stations; interruptible arrangements; and the potential for firm CCGTs to arbitrage. What happened to gas is also considered, covering Beach and Interconnector deliveries and firm demand-side management. A range of issues looking forward for winter gas and electricity supply are discussed.

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UK Gas and Electricity Supplies a review of the Winter 2003.pdf 396.55 KB
30th
Apr
2004

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