Utility Scale Storage

Developed by Dutch start-up AquaBattery, the storage technology is claimed to independently amend power and energy capacity. The battery system utilizes three storage tanks, one with fresh water, one with concentrated salt water and one with diluted salt water, and also relies on membrane stacks.

Developers are moving fast to meet Singapore’s clean energy needs by establishing overseas solar-plus-storage plants, with a strong focus on facilities in neighboring Indonesia.

Two different studies have highlighted the potential and challenges of low-head pumped hydro storage (PHS), which has so far never been implemented in real projects. Different main areas were identified for future research and an interesting levelized cost of storage was indicated for certain project configurations.

The hydrogen generation facility will be initially powered by a photovoltaic plant, but Essent may also add wind power for periods when the sun is not shining. The energy company also plans to deploy some battery storage capacity at the plant for the temporary storage of the surplus of solar power that cannot be immediately converted into hydrogen or supplied back to the grid.

The Portuguese government has approved exceptional measures to simplify renewable energy production. The new provisions include the exemption of operating licenses and operating certificates for renewable energy facilities, battery storage, and projects for self-consumption.

Reversible fuel cell systems based on solid oxide cell (SOC) technology may become an efficient tool to cope with price volatility in the energy market, according to new research from Stanford. Through the proposed model, which mainly considered the electricity markets in Germany and Texas, the research group found that the reversible system may be competitive at current hydrogen prices, provided that there is sufficient variation in daily electricity prices.

pv magazine publisher, Eckhart Gouras, interviewed Diego Mesa, the Colombian Minister of Mines and Energy at the BNEF Summit in New York. Mesa recounted the history of solar PV adoption in his country and provided details on the most recent developments, including the construction of Colombia’s largest solar park by Italian group Enel and the first large scale battery project by Canadian Solar.

With each of the 10-year network development plans produced by Europe’s electricity transmission system operators years in the making, the latest such publication may already be out of date as the bloc prepares to fast forward its energy security and climate change ambitions.

The Spanish authorities applied solar curtailment for the first time on Easter Sunday, when power generation exceeded demand and the wholesale electricity price went from €168.50 ($182)/MWh to just €3.70/MWh.

The Fraunhofer Institute for Solar Energy Systems is assessing how a solar-powered heat pump system that uses waste heat from a distillery at a low-temperature level could be used to provide district heating. Waste heat is injected into an ice storage tank, to which heat pumps are connected on the source side.