The International Renewable Energy Agency has released new data on the cost of capital for solar PV, onshore and offshore wind in the period between 2020 and 2021. Results show that Australia has the second lowest cost of capital in the Asia Pacific region at 4.6%, beaten out by China at 3.9%.

Researchers from Massey University in New Zealand have developed a robotic lawn mower with three 50 W solar panels and a 20 Ah lithium-iron-phosphate (LiFePO4) battery. Two of the PV panels can be retracted and stacked inside the robot. They slide out when it needs to recharge its batteries.

Solis has released a new line of hybrid inverters in five different power output versions, ranging from 3 kW to 8 kW. The hybrid inverters can be used with either lithium-ion or lead-acid batteries, with a maximum charging and discharging current of 190 A.

China’s Bslbatt has added a rack-mounted battery to its ultra-sim range. It has a storage capacity of 5.12 kWh and a nominal voltage of 51.2 V. It measures 670 mm x 475 mm and is 89 mm thick.

Trina Solar’s tracker subsidiary has launched a new version of its Vanguard single-axis two-in-portrait (2P) tracker. It uses multiple motors on one tracker row, reportedly allowing it to withstand higher wind loads and reduce tilt angle misalignment. The new solution is compatible with large modules up to 685 W.

TrendForce has ranked the top six module manufacturers by shipment volume in 2022, with Longi topping the list, followed by Trina Solar and JinkoSolar. JA Solar, Canadian Solar, and Risen Energy rounded out the top six, in a year dominated by large-format modules.

Sarcos has designed a robotic PV construction solution that delivers, detects, lifts, and places PV modules in large-scale solar plants. It has recently field tested and validated the prototype solution in a pilot project funded by the US Department of Energy.

China sold the most heat pumps in the world in 2022, but Europe recorded the highest growth in overall sales, according to the International Energy Agency (IEA). It says Italy, France, and Germany accounted for almost half of all sales in Europe, and notes that air-to-water heat pumps were the most popular technology.

Global renewable capacity increased by 295 GW last year, bringing the world to a cumulative installed capacity of 3,372 GW, according to the International Renewable Energy Agency (IRENA).

An international group of researchers has calculated the potential for floating solar across the world. The results show a generation potential of 9,434 TWh per year across 114,555 global reservoirs, with 30% of their area covered. The United States leads with 1,911 TWh per year of potential, with Australia coming in 8th, with 210 TWh per year.