World

Choosing the best material to cover the backside of a module has long been a contentious issue, and the rise of bifacial technology has brought further complexity to the debate. With transparent backsheet materials quickly making their way to market, the Intersolar Europe edition of the Quality Roundtable event series sought to bring some clarity to the rear side of modules, and illuminate some of the issues that can occur in the field – both with glass-glass and glass-backsheet modules.

Two related challenges have become barriers to increasing penetration levels for rooftop solar: the hosting capacity of the grid, and the need to maintain stability during periods of peak demand. The Future PV Roundtable, held alongside The smarter E event in Munich, looked at how distributed energy resources such as PV and battery storage, along with demand-side flexibility, can help to meet these challenges – all thanks to VPPs.

The energy storage company is ramping up R&D efforts to try and fast-track commercialization of the more productive – and more expensive – battery tech. The news was announced as part of an uninspiring first-half update thanks to falling lithium salt prices.

New analysis predicts more than 150 GW of tracker capacity will be installed in the next five years – around a third of all ground mount projects up to 2024. Rapid growth in Europe, the Middle East and Africa; and the better cost structures possible from combining trackers and bifacial modules are singled out as key trends.

A spokeswoman from the Chinese manufacturer of the Swan series of double-sided solar panels says monofacial modules will soon be consigned to residential use as the price gap between them and higher-yielding bifacial products rapidly closes.

pv magazine test is a cooperative module testing procedure involving pv magazine, CEA and Gsolar. All tests are carried out at Gsolar’s test laboratory in Xi’an, China. CEA supervises them and designed both the indoor and outdoor testing procedures.

A new method of creating an ordered mesh of nanowires, developed by scientists at the Lawrence Livermore National Laboratory in the United States, could lead to the creation of more efficient transparent electrode layers in solar cells – and the elimination of a rare material from the manufacturing process.

A vision of a decentralized, renewable-powered electricity grid is being brought a step closer by scientists at the U.S. National Renewable Energy Laboratory. Their project, Autonomous Energy Grids, aims to take an overarching look at the solutions that will power this grid of the future, and to fill any gaps that appear between them.

Power purchase agreements for 8.6 GW of clean energy have been signed in 2019 till July—up from 7.2 GW at the same time last year—with USA alone accounting for up to 70% of the deals. India continues to lead the Asia Pacific region despite registering a slowdown in the activity.

Scientists at the Australia National University have observed a key stage in the process of photosynthesis which could be copied to greatly increase the efficiency of sunlight-powered water splitting processes used to produce hydrogen.