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Energies 2015, 8(11), 12702-12717;

Forecasting Hot Water Consumption in Residential Houses

Engineering Department, Lancaster University, Bailrigg, Lancaster LA1 4YW, UK
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Chi-Ming Lai
Received: 7 October 2015 / Revised: 3 November 2015 / Accepted: 3 November 2015 / Published: 11 November 2015
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An increased number of intermittent renewables poses a threat to the system balance. As a result, new tools and concepts, like advanced demand-side management and smart grid technologies, are required for the demand to meet supply. There is a need for higher consumer awareness and automatic response to a shortage or surplus of electricity. The distributed water heater can be considered as one of the most energy-intensive devices, where its energy demand is shiftable in time without influencing the comfort level. Tailored hot water usage predictions and advanced control techniques could enable these devices to supply ancillary energy balancing services. The paper analyses a set of hot water consumption data from residential dwellings. This work is an important foundation for the development of a demand-side management strategy based on hot water consumption forecasting at the level of individual residential houses. Various forecasting models, such as exponential smoothing, seasonal autoregressive integrated moving average, seasonal decomposition and a combination of them, are fitted to test different prediction techniques. These models outperform the chosen benchmark models (mean, naive and seasonal naive) and show better performance measure values. The results suggest that seasonal decomposition of the time series plays the most significant part in the accuracy of forecasting. View Full-Text
Keywords: hot water consumption; forecasting techniques; smart grid; demand-side management hot water consumption; forecasting techniques; smart grid; demand-side management

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Gelažanskas, L.; Gamage, K.A.A. Forecasting Hot Water Consumption in Residential Houses. Energies 2015, 8, 12702-12717.

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