A residential vanadium flow battery
Flow battery manufacturers typically pursue utility scale storage projects but German start-up VoltStorage is targeting the household market.
Cadmium-free CIGS solar cell with 18% efficiency
South Korean scientists manufactured the cell with the chemical bath deposition method, using different thiourea concentrations. For the buffer layer, they used zinc instead of cadmium sulfide. The cell is flexible and is available in seven different colors.
Is Mexican utility CFE entering the solar business?
Mexico’s Federal Electricity Commission (CFE) is seeking approval to develop 350 MW of solar in the state of Baja California. The arrays will be built on the same site as the 820 MW Cerro Prieto geothermal project. However, it remains unclear whether the PV installations mark the company’s formal entry into the solar business.
US utility invests in Australian prefab PV system manufacturer
AES, one of the world’s largest power companies, has made a strategic investment in Sydney-based prefabricated solar system manufacturer 5B.
Germany added 437 MW of PV in June
June installations brought first-half capacity additions to 2.36 GW, as Europe’s largest solar market largely shrugged off the impact of the pandemic.
German PV tender concludes with lowest price of €0.0490/kWh
The country’s latest tech-specific PV tender was oversubscribed, but the final prices are slightly lower than those recorded in the last procurement round.
Strategies to prevent overvoltage-induced inverter disconnections
Australian scientists have identified seven methods to prevent PV losses when overvoltage-induced inverter disconnections occur. The methods include battery storage, reactive power inverters, export limits, distribution static synchronous compensators, the replacement of old conductors in power grids, load reconfiguration, and dynamic voltage restoration.
Fuzzy logic MPPT to improve PV system performance
A Pakistani-Chinese research group has demonstrated a new maximum power point tracking method, based on a fuzzy logic algorithm to provide faster results. The converter tech is claimed to have an impact on PV system efficiency and provide isolation between the load and the PV array.
Texan utility tenders 900 MW of solar, 50 MW of storage
CPS Energy has taken the first step towards bringing those volumes – plus 500 MW of firming capacity – to the Lone Star State in pursuit of the power company’s 50%-renewables-by-2040 goal.
India confirms one-year extension of solar cell import duty
The ‘safeguard’ duty will be levied on Chinese, Vietnamese and Thai solar cells – whether assembled into modules or not – at 14.9% from today and falling to 14.5% in six months’ time. Malaysian products are exempted as their imports have fallen dramatically since the duty was introduced, in July 2018.
