Sustainability

Around 4.2 MWh of energy storage capacity will be connected to a solar and diesel micro-grid on Rarotonga, the largest of the islands in the South Pacific nation. Three 40-foot containers with a total power output of 4.8 MVA will be used as a power reserve and for grid support by utility Te Aponga Uira.

The EU Council has rejected a Covid-inspired European Commission proposal for a €40 billion warchest to help coal-dependent regions shift to renewables, with the heads of member states instead allocating €17.5 billion. Despite the final figure being €10 billion higher than that suggested by the commission before coronavirus battered Europe, questions have been asked about how useful the program will be.

Plus, details have been revealed of a 2 MW/2.5 MWh grid scale storage demo project in Switzerland and for a peer-to-peer renewable energy certificate marketplace in Southeast Asia.

The Portuguese government has revealed some of the preliminary results of the national solar auction which closed on Tuesday. Antonio Delgado Rigal, chief executive of energy forecasting service Aleasoft, said that the 15-year contracts awarded in the auction were the key to understanding the reason of such a low price. This, combined with the rights for land and grid connection guaranteed by the auction, makes attractive bidding at low prices.

International thinktank IEEFA says there are 50 viable green hydrogen projects under development with an estimated renewable energy capacity of 50 GW and the potential to produce 4 million tonnes of the fuel annually.

In February, non-profit EU solar panel recycling body PV Cycle announced it had collected 5,000 tons of modules in France, of which 94.7% could be recycled. A reader asked us about the remaining 5.3% and here, PV Cycle’s communications manager, Bertrand Lempkowicz, responds.

A study from the Lappeenranta University of Technology states a deeper complementarity between solar and wind generation may favor renewables deployment reducing the need for stronger developments in storage technology. Combining solar with wind more widely could also reduce the need for ramping and improve the reliability of energy supply, say the researchers.

Plus, some 5 GW of solar could be heading to Botswana and Namibia and news of a new automotive fuel cell building in Ulm, Germany.

pv magazine spoke with Catherine Von Burg, CEO of the Californian battery company, to discuss why she believes lithium-iron-phosphate is the chemistry of the near future.

Given the number of batteries (primarily lithium-ion) that are required to decarbonize the power and mobility sectors, the industry is now preparing for a mountain of battery waste. Recycling is technically feasible, but is also subject to sensitive economics. The framework in which recycling companies can achieve the best life-cycle costs for batteries needs to be carefully enabled through policy – and it will likely include a mixture of technologies and business models, in order to allow life-cycle emissions of batteries to be brought down.