Renewable energy integration as an alternative to the traditional ground-source heat pump system

  1. Sáez Blázquez, Cristina 1
  2. Borge-Diez, David 2
  3. Nieto, Ignacio Martín 1
  4. Martín, Arturo Farfán 1
  5. González-Aguilera, Diego 1
  1. 1 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  2. 2 Department of Electric, System and Automatic Engineering, University of León, León, Spain
Libro:
Energy Services Fundamentals and Financing

Editorial: Academic Press

ISBN: 9780128205921

Año de publicación: 2021

Páginas: 109-130

Tipo: Capítulo de Libro

DOI: 10.1016/B978-0-12-820592-1.00005-1 GOOGLE SCHOLAR

Resumen

There is no widespread use of the very low-enthalpy geothermal energy in a large number of countries. The reason is often the high initial investment required by these systems. In this regard, geothermal heat pump is largely responsible for this important outlay. This research focuses on substituting this device by the integration of a set of renewable alternatives. Thus the ground contribution is complemented with a thermal and a power renewable module that provide the required remaining energy. The model was evaluated on a real study case by technical calculations of the common ground-source heat pump (GSHP) system and the one considered here. An economic feasibility study showed notable savings in the initial investment as well as in the annual costs on the part of the suggested system. In addition, the CO2 emissions were reduced by half in comparison to the traditional geothermal plant. The model represents a general improvement in relation to the conventional GSHP system: the heat pump is removed, and the total drilling length is reduced. Despite these improvements, it still depends on the external electricity supply.