Technology

Railway operators can now feasibly connect solar plants to traction substations, claims a consortium that is now working on a similar demonstration project in the U.K. Almost all of the 30 kW installation’s output will be used to move trains, but in the future storage could come into the picture for larger “railway-connected” solar power projects, says 10:10, the U.K.-based climate change charity that developed the pilot.

According to a new report by BNP Paribas Asset Management, renewables offer more advantages than simply mitigating climate change. Electricity is easier to transport than oil, and wind and solar electricity prices are much more stable than volatile oil prices. An analyst from the French bank argues that major producers will need to reduce oil prices below $20 to compete with clean energy in the transport sector.

Scientists at the U.K.’s Faraday Institution have been able to observe degradation mechanisms at the lithium metal anode in a solid state battery, and made several discoveries which could improve the performance and design of future solid-state lithium-ion batteries.

The high efficiency solar panel maker pulled off a rare profit in the second quarter due to selling off leases, but expects to report another quarterly loss in its next update.

The U.S. National Renewable Energy Laboratory reports further progress in bringing down the cost of III-V solar cells. Scientists have refined their ‘brand new, 50-year-old’ D-HVPE technology to speed up the production rate for gallium arsenide solar cells by a factor of more than 20. The development is a potential step toward making incredibly efficient solar cells cost effective for everyday purposes.

With grid capacity a limiting factor, the Middle Eastern country has moved to foster private-to-private solar projects to meet industrial power demand.

The analyst has published its latest Energy Storage Outlook report and says large scale deployment will provide the majority of the 1,095 GW/2,850 GWh of battery storage worldwide in 2040, with prices driven down further by grid services demand and EVs.

The scheme will test the potential of distributed energy resources such as rooftop systems, battery storage and controllable load devices aggregated into VPPs to provide scalable energy and network services traditionally performed by large scale, conventional electricity generators. With registration open, the Australian Energy Market Operator wants VPPs to register to accelerate shared learning.

The Palo Alto company says it has improved its large scale battery offering with the new product in the wake of the success of its Powerpack-driven big battery in Australia. The Megapack can be deployed at a 250 MW/1 GWh clean energy plant four times faster than a fossil fuel alternative, claimed the business in a blogpost.

Scientists at Rice University in Texas have developed a device which converts heat into light by squeezing it into a smaller bandgap. The ‘hyperbolic thermal emitter’ could be combined with a PV system to convert energy otherwise wasted as heat – a development the researchers say could drastically increase efficiency.