Technology and R&D

A printed circuit board-based hydrogen fuel cell for use in autonomous boats and ships has been engineered by a British consortium, and Italian energy companies Snam and Edison want to set up a 220 MW green hydrogen production plant powered by 380 MW of solar in Apulia.

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.

The modular power station comes with two lithium iron phosphate (LFP) batteries and has a capacity of 6 kW/24.6 kWh. It relies on a 3 kW pure sine wave inverter which the manufacturer said is able to adjust the AC charging rate.

The module is claimed to be one of the top five most performant heterojunction solar modules, in terms of power density, with the champion panel achieving 214.15 W/m² and the average device 209.5 W/m². The panel showed an efficiency ranging from 20.95% to 21.41%.

Developed by U.S. scientists, the 10%-efficient device is intended for applications in solar windows and promises efficiencies close to 15%. According to its creators, the cell retained 80% of its efficiency after 1,900 hours at 55 degrees Celsius.

Multiple factors affect the productive lifespans of residential solar inverters. In the second part of our new series on resiliency, we look at PV inverters.

Solar Team Eindhoven has developed an experimental mobile house that is powered exclusively by vehicle-integrated PV and is claimed to achieve a range of 730km, on a sunny day and at a, moderate speed of up to 85kph. The vehicle is equipped with a foldable PV system that can be unfolded and produce more power when the vehicle is not in motion.

The scheme is open to companies specializing in district heating and offers rebates covering up to 15% of the total investment made to buy and install the heat pump, with developers being eligible for a maximum of DKK5 million for each project.

South Korean researchers have tested four operational modes to combine residential batteries with balcony PV modules and have found that the best configuration is when solar is supplied to the load after the battery is fully charged. Charging the battery with the grid prevents the risk of full discharge in the absence of PV power, they said.

WattEV will build 1 MW solar-powered chargers to deliver 320 miles (515 km) of range to Class 8, 80,000-pound trucks in 30 minutes.