Smart intermittency-friendly cogeneration: Techno-economic performance of innovative double storage concept for integrating compression heat pumps in distributed cogeneration

Morten Blarke

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Increasing penetration levels of intermitttent renewables are posing challenges to system operators and electricity producers. In West Denmark, which is a paradigmatic case by global comparison in terms of combining intermittent renewables and distributed cogeneration, we find that distributed cogeneration plants rather than central power plants are giving way for wind power in the electricity mix. Could intermittent renewables be a threat to the system-wide energy, economic and environmental benefits that distributed cogeneration have to offer?
This paper investigates how existing cogeneration plants may adapt their plant design and operational strategy to improve the co-existence between cogeneration and intermittent renewables.
A novel intermittency-friendly and super-efficient concept in cogeneration is presented that involves integrating a high-pressure compression heat pump using heat recovered from flue gasses as the only low-temperature heat source, furthermore applying an intermediate cold storage allowing for non-concurrent operation of heat pump and cogeneration unit.
The novel concept is subject to a detailed techno-economic comparative modelling and analysis, hich finds the concept to be the most cost-effective option for increasing intermittency-friendliness.
Original languageEnglish
Title of host publicationProceedings of the 6th International Renewable Energy Storage Conference and Exhibition, IRES 2011
Number of pages20
PublisherEUROSOLAR
Publication date2011
Publication statusPublished - 2011
Event6th International Renewable Energy Storage Conference and Exhibition, IRES 2011 - Berlin, Germany
Duration: 28 Nov 201130 Nov 2011

Conference

Conference6th International Renewable Energy Storage Conference and Exhibition, IRES 2011
CountryGermany
CityBerlin
Period28/11/201130/11/2011

Keywords

  • Intermittent renewables
  • Smart grid
  • Distributed cogeneration
  • CO2 compression heat pump
  • Cold storage
  • Thermal storage

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