Residential PV

A new report by the Australian Energy Market Operator (AEMO) shows the nation’s clean energy transition is gathering pace with renewables, including large-scale and rooftop solar.

Solargis says that Indian solar operators have experienced below-average PV panel performance due to air pollution in each of the past five winters. Northern India experienced the worst air quality in decades this January, with data showing a 30% to 50% dip in solar irradiance due to high aerosol levels.

Researchers in Sweden have analyzed how roll-bonded PVT collectors can act as secondary heat sources in ground-source heat pumps and have found they provide a better performance than conventional PVT panels. Their techno-economic analysis also showed roll-bonded PVT systems can be up to 9% more expensive than conventional installations based on sheet and tube absorbers.

A new report from Wood Mackenzie examines how the global shift to higher interest rates to combat inflation is squeezing the energy transition.

The new heat pumps use R-454B as a refrigerant and are specifically designed to be matched with Johnson Controls’ residential gas furnaces. Their size ranges from 1.5 tons to 5 tons and their coefficient of performance (COP) spans between 3.24 and 3.40, according to the manufacturer.

The International Energy Agency (IEA) Photovoltaic Power Systems Programme (PVPS) has published a wide-reaching snapshot of the global PV market, covering installations, manufacturing, policy trends, and grid integration.

In a new weekly update for pv magazine, Solcast, a DNV company, reports that dust storms and slear skies led to contrasting March Solar Performance in West Asia. The Arabian Peninsula experienced humid winds and dust storms that reduced solar irradiance to 90% of typical levels for the month.

EcoFlow has launched a new air-to-water heat pump for residential applications. The new product, equipped with R290 refrigerant, is available in 9 kW and 20 kW versions. The US-headquartered manufacturer has also developed a new smart immersion heater, which uses surplus solar energy to heat up water. It is compatible with all available rooftop PV systems.

A Chinese research group has sought to understand the relative performance of two weather prediction techniques based on ensemble modeling for solar energy forecasts. The scientists applied the two methods in combination with three classical post-processing methods.

AleaSoft Energy Forecasting says that all major European electricity markets, except for Italy, have recorded negative hourly electricity prices for the second straight week. However, the Spanish consultancy notes that prices generally remain low.