heat pump

Proposed by Turkish scientists, the system design consists of combining rooftop PV with a ground source heat pump in a greenhouse used for tomato, cucumber and lettuce cultivation. The solar array operates under net metering and grid electricity is used when PV generation is unable to cover demand. According to their findings, the system payback time ranges from 2.6 to 7 years.

The Sun Horizon consortium has started to collect performance data on two pilot projects that combine heat pumps with solar systems using hybrid panels on homes in Riga, Latvia. The solution features a heat pump for space heating and domestic hot water and PVT panels to produce power for heating and domestic appliances, with excess power fed to the grid.

Swiss-headquartered technology corporation ABB is supplying integrated electrical infrastructure for the construction of a 50 MW seawater heat pump in Denmark. The heat pump technology will be provided by German specialist MAN Energy Solutions.

The move is part of the National Development Plan 2021-2030, which aims to increase the share of renewable electricity in the generation mix up to 80% and to allocate around 15.5 GW of wind and solar capacity through an auction scheme.

A new report from the European Heat Pump Association (EHPA) has shown that heat pump technologies are currently unable to compete for heating with gas due to high taxes and levies on electricity. According to its experts, a carbon tax, or removing this tax imbalance, may create a level playing field for renewable technologies in the heating sector.

The Massachusetts Clean Energy Center (MassCEC) showed, through a pilot incentive program, that whole-home heat pumps are a feasible solution for heating when switching from gas. Project costs, however, were found to be higher than expected.

Researchers in Spain have proposed two control strategies for the integration of heat pumps in district heating systems assisted by solar thermal collectors. Their technical-economic analysis shows that the proposed combination can reduce reliance on gas while also reducing costs.

According to a recent study, installing an air source heat pump may increase a home’s value by up to 7.1% in 23 states of the United States. The price premium is estimated at between $10,400 and $17,000 per transaction and the average cost for installing an air source heat pump is around $8,000.

A Norwegian consortium has built an industrial heat pump that can reach a temperature of up to 180 degrees Celsius. The machine can be used with different industrial processes that rely on steam as an energy carrier and can reduce a facility’s energy consumption by between 40% and 70%, as it enables the recovery of low-temperature waste heat.

Italian scientists have assessed the technical potential of vapor compression heat pumps assisted by photovoltaic-thermal systems. They analyzed two main configurations of this combination describing the advantages and disadvantages of both solutions. The cheapest and easiest to deploy system is a single-source direct-expansion (DX) configuration for hot water for space heating or domestic hot water.