Residential PV

Researchers in Hungary have found that a high tilt angle may increase power forecast errors in a PV installation by up to 49%. They also ascertained that
undersizing the inverters by a sizing factor of 1.5 may reduce forecast errors by up to 25%.

The authorities in Slovakia are offering rebates to cover up to 50% of the cost of buying and installing solar water heaters, PV systems with generation capacities of up to 10 kW, heat pumps, biomass systems, and solar-thermal collectors.

High temperatures can affect different components of PV systems. Inverters can fail, the efficiency of solar modules can decline, and existing cell damage can become worse. However, investors, planners, and operators can adjust to heat waves in a number of different ways.

Roll-A-Rack has developed a gutter-like racking system that collects rainwater for irrigation.

India’s SunEdison has partnered with US startup Arka Energy to provide the Arka collection of solar roof and gazebo solutions in India.

Data from the Swedish association Svensk Solenergi shows some 21,500 PV systems were installed in the first half of the year, with a 90% growth compared to the same period a year earlier. The trade body also expects a substantial upswing in the spring of 2023.

Interest and investment in heat pumps have surged in Europe, but in Australia the technology has struggled to find a serious foothold. Despite the potential, dodgy technology suppliers and schemes gone awry have left a bad taste in Australia’s mouth, CEO Jarrod Leak tells pv magazine Australia

Estimating the total cost of energy storage connected to a rooftop PV installation is a complex affair, involving factors such as tax, the policy environment, system lifetimes, and even the weather. As part of its extensive overview of distributed energy storage in Germany, pv magazine Germany analyzed the efficiency of different battery energy storage systems to create a comparable index that illustrates the cost of a stored kilowatt-hour.

The Germany-based heating specialist wants to invest more than €200 million (US$200.5 million) in the new heat pump facility.

Beny Electric unveiled a micro-inverter series with efficiency of up to 97.5% and a European efficiency of up to 97%. The micro-inverters are available in three different versions with a rated power output of 550 VA, 700 VA, and 2,800 VA, respectively.