Alternative Energy Storage Options for Heat Pump Water Heater Coupled with Photovoltaic Plant for Domestic Hot Water Production
Abstract
The present work relies with the topic of Energy Storage for Heat and Electricity applied to Heat Pump Water Heater coupled with photovoltaic plant for Domestic Hot Water production. Calculations account on tapping profile inferred from monitored data of a representative end-user in a Mediterranean small island. The main idea is to evaluate the possibility to exploit the water tank as heat storage for the produced photovoltaic energy, eventually combined with electrical storage. For this reason, two types of heat pump with different volume size have been chosen and smart control strategies have been applied while monitoring the water temperature in the tank. Results show how combining smart control strategies and battery systems is the most suitable solution in order to totally cover the domestic hot water energy demand by renewable sources while fulfilling comfort requirements.