Skip to Main content Skip to Navigation
Conference papers

An optimization algorithm for load-shifting of large sets of electric hot water tanks

Abstract : Large sets of Electric Hot Water Tanks (EHWT) found in numerous countries appear as very relevant for load-shifting applications. An EHWT heats water over relatively long periods of time, for later consumption. The simple time-of-use pricing strategy applied to most consumers increases the overall electricity consumption in the beginning of the night, while hot water is used much later, in the next daytime. With the development of home automation, more advanced strategies could enable improved cost-reductions for both users and the electricity producer. An efficient and robust improvement is to reschedule each EHWT heating, while keeping the heating periods undivided (to minimize the malicious impacts of complex dynamic effects taking place inside each EHWT), so that an objective load curve for the whole set of EHWT is reached. The first contribution of this article is to formulate the rescheduling of EHWT heating with comfort constraints as an optimization problem. The second contribution is a heuristic to solve this problem with less than 1% optimality loss for representative test cases with large sets of EHWT (typically hundreds of thousands).
Document type :
Conference papers
Complete list of metadatas

Cited literature [11 references]  Display  Hide  Download

https://hal-mines-paristech.archives-ouvertes.fr/hal-01444247
Contributor : François Chaplais <>
Submitted on : Monday, January 23, 2017 - 6:01:41 PM
Last modification on : Thursday, September 24, 2020 - 5:04:18 PM
Long-term archiving on: : Monday, April 24, 2017 - 3:19:33 PM

File

NB.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01444247, version 1

Citation

Nathanael Beeker, Paul Malisani, Nicolas Petit. An optimization algorithm for load-shifting of large sets of electric hot water tanks. 29th International conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems, ECOS 2016, Jun 2016, Portorož, Slovenia. ⟨hal-01444247⟩

Share

Metrics

Record views

208

Files downloads

233