2.3.2 Installation of a hot water return circuit Description An action that can be carried out to improve the efficiency of the DHW system consists in installing a hot water return circuit in the distribution network. Benefits Maintain the circuit water warm reducing significantly the losses of [...]
2.3.3 Installation of a heat recovery in the condensers of the air conditioning system Description In the cooling systems, the heat produced by the condenser can be reused through heat exchangers for the DHW production. This exploitation can be not only a significant energy saving for the production of DHW, but also [...]
2.3.4 Installation of a CO2 heat pump Description The CO2 heat pump is a recently developed and more efficient alternative than traditional systems to produce DHW. The CO2 heat pump technology is capable of producing up to 4 kW of thermal energy from 1kW of power supply (from electricity), while a conventional [...]
2.3.5 Change from an individual to a collective DHW system Description This measure consists in substituting each individual DHW system in a residential building by a sole collective system which supplies DHW to all the dwellings. Benefits The power required to supply DHW is considerably lower than [...]
2.3.6 Installation of Drain Water Heat Recovery (DWHR) systems Description Drain water heat recovery units consist of coiled tubes wrapped around drain pipes that capture heat from waste water as it leaves the building. They then return the heat to the hot water system, reducing the energy required to provide hot water [...]
2.3.7 Replace existing DHW system with heat pump water heaters Description Heat pump water heaters need to be installed in applications where the cold air discharged from the evaporator can be exhausted from the space or used to cool the facility (well suited for hot climates). Benefits [...]
2.6.1 Installation of solar thermal panels Description A solar thermal energy system is a technology that harnesses solar radiation to produce thermal energy, which can be used later on as DHW, heating or for swimming pool heating, among others. Additionally, by means of a trigeneration system, it can be even used for [...]
2.6.5 Installation of a Building Energy Management System (BEMS) Description BEMS are computer-based systems that help to manage, control and monitor building technical services (HVAC, lighting etc.) and the energy consumption of devices used within the building. They provide the information and the tools that building managers need both to understand the energy [...]
2.6.6 Installation of an ICT system Description ICT has been identified as one possible means to design, optimize, regulate and control energy use within existing and future (smart) buildings. ICT could not only be used for decreasing the energy consumption in buildings, but also to create new business opportunities driven by the need [...]
2.6.7 Installation of smart meters Description A smart meter is usually an electronic device that records electricity consumption in intervals of an hour or less and communicates that information at least daily back to the utility for monitoring and billing. Benefits Remove estimated meter reads and generate [...]
