IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v128y2017icp626-633.html
   My bibliography  Save this article

An energy and cost comparison of residential water heating technologies

Author

Listed:
  • Keinath, Christopher M.
  • Garimella, Srinivas

Abstract

Water heating is a significant user of energy. Several studies have investigated the development of more efficient systems. The present study compares several commercially available options for water heating and compares them with the performance of a recently developed of a gas-fired heat pump water heating system. Comparisons of each technology are conducted using annual energy use and operating cost metrics. Payback period predictions for the gas and electric heat pumps are performed with the electric and non-condensing gas storage units as a base case. Electric and gas heat pumps, at total initial costs of $2,400, are estimated to require 3.6 and 3.1 year payback periods when compared to an electric storage unit, respectively, while a gas heat pump with a total initial cost of $2000 is estimated to require 2.3 years. For this study a gas heat pump cost of $2400 was assumed. Daily total draw cases for a gas heat pump of 243, 303 and 379 L compared to a non-condensing gas storage unit as the base case show payback periods of 4, 3.2 and 2.5 years, respectively. This analysis shows that electric and gas heat pump technologies offer significant energy use and operational cost savings compared to baseline water heating technologies with reasonable payback periods.

Suggested Citation

  • Keinath, Christopher M. & Garimella, Srinivas, 2017. "An energy and cost comparison of residential water heating technologies," Energy, Elsevier, vol. 128(C), pages 626-633.
    • Handle: RePEc:eee:energy:v:128:y:2017:i:c:p:626-633
    DOI: 10.1016/j.energy.2017.03.055
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544217304309
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2017.03.055?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Reis, Inês F.G. & Gonçalves, Ivo & Lopes, Marta A.R. & Antunes, Carlos Henggeler, 2022. "Towards inclusive community-based energy markets: A multiagent framework," Applied Energy, Elsevier, vol. 307(C).
    2. Fabian Wüllhorst & Christian Vering & Laura Maier & Dirk Müller, 2022. "Integration of Back-Up Heaters in Retrofit Heat Pump Systems: Which to Choose, Where to Place, and How to Control?," Energies, MDPI, vol. 15(19), pages 1-22, September.
    3. Zou, Deqiu & Ma, Xianfeng & Liu, Xiaoshi & Zheng, Pengjun & Cai, Baiming & Huang, Jianfeng & Guo, Jiangrong & Liu, Mo, 2017. "Experimental research of an air-source heat pump water heater using water-PCM for heat storage," Applied Energy, Elsevier, vol. 206(C), pages 784-792.
    4. Pablo Carnero & Pilar Calatayud, 2021. "A Parametric Analysis for Short-Term Residential Electrification with Electric Water Tanks. The Case of Spain," Sustainability, MDPI, vol. 13(21), pages 1-26, November.
    5. Meireles, I. & Sousa, V. & Bleys, B. & Poncelet, B., 2022. "Domestic hot water consumption pattern: Relation with total water consumption and air temperature," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).
    6. Omais Abdur Rehman & Valeria Palomba & Andrea Frazzica & Antonios Charalampidis & Sotirios Karellas & Luisa F. Cabeza, 2023. "Numerical and Experimental Analysis of a Low-GWP Heat Pump Coupled to Electrical and Thermal Energy Storage to Increase the Share of Renewables across Europe," Sustainability, MDPI, vol. 15(6), pages 1-33, March.
    7. Vering, Christian & Maier, Laura & Breuer, Katharina & Krützfeldt, Hannah & Streblow, Rita & Müller, Dirk, 2022. "Evaluating heat pump system design methods towards a sustainable heat supply in residential buildings," Applied Energy, Elsevier, vol. 308(C).
    8. Ahmet Feyzioglu, 2023. "A Study on the Control System of Electric Water Heaters for Decarbonization," Energies, MDPI, vol. 16(5), pages 1-12, March.
    9. Christy E. Manyi-Loh & Mandlenkosi Sikhonza & Stephen Tangwe, 2021. "Linear Regression Analysis and Techno-Economic Viability of an Air Source Heat Pump Water Heater in a Residence at a University Campus," Energies, MDPI, vol. 14(8), pages 1-22, April.
    10. Oliver Gregor Gorbach & Jessica Thomsen, 2022. "Comparing the Energy System of a Facility with Uncertainty about Future Internal Carbon Prices and Energy Carrier Costs Using Deterministic Optimisation and Two-Stage Stochastic Programming," Energies, MDPI, vol. 15(10), pages 1-39, May.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:128:y:2017:i:c:p:626-633. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.