Surplus PV for electric delivery vehicles
Scientists in Japan have developed a model that predicts surplus PV generation and creates a route for optimized charging of electric delivery vehicles. They defined their work as a “practical blueprint for logistics operators.”
Map shows 43% of Iran’s land unsuitable for PV-powered water pumps
Scientists used geographic information systems and analytical hierarchy process methods to identify Iran’s most suitable areas for PV water pumping systems. They found 43.2% of land unsuitable, with Ardabil province the most favorable.
Novel switched capacitor boosting inverter for PV usage
Researchers have designed a new switched-capacitor-based multilevel inverter topology with nine switches. They have tested it in simulations and in hardware-in-the-loop tests. Efficiency reached up to 96.5%.
Spanish parliament rejects grid reform law proposed after April blackout
Spain’s parliament has rejected a legislative package aimed at reinforcing the grid and scaling up battery energy storage following the April 28 blackout.
Moldova introduces guarantees of origin certificate for renewables
Moldova has introduced an electronic guarantees of origin system to certify renewable energy production, with certificates recognized across the European Union through integration with the EU-wide register.
Compressed air energy storage enhanced by gravity
Scientists in China have simulated an advanced adiabatic compressed air energy storage, to which they added an elastic airbag with a heavy load situated above it. The energy, exergy, and economic analysis of the system showed that, due to the constant weight of the heavy load, the airbag’s pressure level remains unaltered during operation.
Wireless EV charging based on PV, three-port DC–DC converter
Scientists have developed a wireless charging system for electric vehicles, with a three-port DC–DC converter at its core. They have simulated the system and tested a prototype in their lab and have found it achieved an improved efficiency of 88%.
Record solar output in Europe drives rise in negative price hours
Record solar generation across Europe and limited storage capacity are driving a surge in negative electricity price hours, with below-zero pricing expected to hit new highs in the third quarter, according to Montel Analytics.
New PV system sizing approach based on jellyfish search algorithm
Researchers have used the jellyfish search algorithm to optimize solar PV distributed generation placement and sizing. They have tested the algorithm on an IEEE 33-bus system, with one, two, or three PV deployment scenarios, and compared its performance with that of a dozen of competing optimization techniques.
Record EU solar generation helped stabilize power supply during heatwave
A record 45 TWh of solar power was generated across the European Union in June, which helped stabilize electricity supply during the recent heatwave, according to think tank Ember.
