Replacing MPPT with direct PV-battery coupling
Researchers in Germany have assessed direct coupling and integration between PV and batteries at the scale of a single PV module. They say their solution could be cheaper and provide superior performance than maximum power point tracking (MPPT) in optimizing PV system performance.
Global solar installations may hit 350.6 GW in 2023, says TrendForce
TrendForce says solar demand could grow by more than 53.4% this year due to lower module prices and delayed projects from 2021 and 2022 that are now going online. China will be the largest market this year with 148.9 GW, followed by the United States with 40.5 GW, India with 17.2 GW, Brazil with 14.2 GW, Germany with 11.8 GW, Spain with 11.4 GW, and Japan with 8 GW.
Photovoltaic-thermoelectric tech with potential efficiency of 65%
Chinese scientists have simulated a new photovoltaic-thermoelectric technology, based on radiative cooling and III-V solar cells, to generate electricity at night.
Longi releases new alkaline electrolyzer
China’s Longi claims that its new ALK Hi1 electrolyzer can produce hydrogen with an energy content of 4.3 kWh per normal cubic meter. It says the levelized cost of hydrogen could be up to 2.2% lower than other electrolyzers on the market.
Photovoltaic-thermal module based on biochar-PCM achieves 79.6% efficiency
Indian scientists have developed a panel with an electrical efficiency of 13% and and thermal efficiency of 66.6 %. They built the system with a 100 W PV panel, a rectangular absorber, and a cooling technique based on a phase change material (PCM) that uses biochar derived from water hyacinth.
SnapNrack introduces solar mount that attaches to module before roof
SnapNrack’s TopSpeed solar mount begins installation on the ground, which limits time spent on rooftops.
Wafer, cell prices continue to rise
Wafer prices rose by between 24% and 36% this week, according to new data from the China Nonferrous Metals Industry Association (CNMIA).
New EV battery offers 50% more density than traditional lithium-ion batteries
Ionblox says it will use $32 million of series B funding to support the buildout of a novel silicon anode electric vehicle battery.
Survey shows 34.3% failure rate for residential inverters over 15 years
The Bern University of Applied Sciences in Switzerland has published the initial results of a survey on the durability and performance of residential PV inverters and power optimizers over a 15-year period. They found that more than 65% of the inverters did not present yield-relevant faults by their 15th year of operation.
Sodium aluminum battery for renewables storage
US researchers have designed a molten salt that could potentially reach an energy density of up to 100 Wh/kg at a cost of $7.02/ kWh. The battery uses an aluminum cathode that charges quickly and reportedly enables longer-duration discharge.
