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- Written by: ChatGPT! and comments by John Burke
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We asked ChatGPT the following question, its answer was good as it has access to a phenominal amount of relevant data! We also like the way it mentioned wasted heat from {centralised electricity production}
"What are the main benefits of Combined Heat and Power (CHP) systems in a city enviroment?
ChatGPT Answered
Combined Heat and Power (CHP) systems, also known as cogeneration, offer several benefits when implemented in a city environment. Here are some of the main advantages of using CHP systems:
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Increased energy efficiency: CHP systems use the heat generated during electricity production, which would otherwise be wasted, to provide heat to buildings. By capturing this wasted heat, CHP systems can achieve efficiency rates of up to 90%, compared to just 50% for conventional power plants.
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Reduced greenhouse gas emissions: Because CHP systems use less fuel to produce the same amount of energy, they emit fewer greenhouse gases than conventional power plants. In addition, by using locally generated energy, CHP systems can reduce the need for energy to be transported long distances, further reducing emissions.
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Improved energy security: CHP systems can provide a reliable source of electricity and heat to buildings, even during power outages or other disruptions to the grid. This can help to improve energy security in a city and reduce the risk of blackouts or other energy-related issues.
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Lower energy costs: By generating electricity and heat on-site, CHP systems can reduce a city's reliance on expensive grid electricity and imported fuels. This can lead to lower energy costs for businesses and residents, which can be especially beneficial in areas with high energy prices.
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Increased resiliency: CHP systems can help to increase the resiliency of a city's energy infrastructure, by providing backup power and heat during emergencies or other disruptions. This can help to reduce the impact of disasters and other events that may disrupt energy supplies.
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- Written by: J C Burke
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Combined Heat and Power (CHP) is not a new idea to the UK. Woking for example, has a large district heating network which makes considerable carbon savings and the Immingham plant on the Humber is a large industrial example. Yet when one compares the UK to Sweden, UK CHP seems very underdeveloped in comparison. Here we would like to discuss just what makes Swedish CHP so great and what the future holds in the UK for the technology.
We won't cover the technical aspects to CHP cogeneration here, as just an introduction is needed. The principle is simple however; whether on a micro scale or on an industrial scale, power production and industrial processes usually create a lot of heat, which is wasted ''potential'' energy. CHP cogeneration aims to take this waste heat and make it useful, increasing the efficiency of the installation. Often this will mean piping the heat to nearby buildings to be used for domestic, industrial heating, or even, additionally [by the use of Absorption Chillers] chilled water for air conditioning! Known as TRI-Generation
Example of Sweden – wide adoption of combined heat and power technology