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A U.S. research team has used protein bacteriorhodopsin to improve the efficiency of what it called ‘bioperovskite’ solar cells. The scientists used Förster Resonance Energy Transfer to predict the strength of long-range excitonic transport between the perovskite and protein layers.

The South African utility has issued a 20-strong tender for 50 kW solar inverters and mounting structures, to be used in four power plants. Although it is unclear whether the tender marks the energy company’s first step into solar energy, the procurement follows the recent publication of South Africa’s Integrated Resource Plan. Eskom is reportedly developing a renewables-linked large scale storage project which may explain the need for inverters.

Exxon Mobil and BP did not produce figures for their clean energy investment activity and Total responded only with its ‘low carbon electricity’ spending. Shell stated it had invested €1.6 billion in clean energy from late 2016 up to June and Chevron gave details of its spending to reduce emissions and enable ‘greater diversity of energy sources’.

Research from the United States has demonstrated how PV technology can be used to kill cancer cells. Although still at an embryonic stage, the findings of the study and initial test results suggest solar power could be an effective tool in relation to light-activated fluorescent dyes for disease diagnosis, image-guided surgery and site-specific tumor treatment.

The facility will be developed under the World Bank’s Scaling Solar initiative on a public-private partnership basis in Herat province.

Lead plays an important role in crystalline silicon module manufacturing when it comes to cell interconnection. But even in small amounts, the presence of this toxic material in a PV module could be viewed as a black mark against the industry’s sustainable credentials. Alternatives are available, but it seems the price is not yet right for broader uptake.

The Swiss solar equipment maker has already sold its corporate headquarters this week as it aims to generate a fighting fund until the hoped-for returns of a European PV manufacturing renaissance materialize.

The thin film PV maker has reported solid third-quarter results after the opening of its massive, 1.3 GW factory in Ohio.

The world’s solar superpower added only 16 GW of new generation capacity up to the end of last month, according to the head of the main industry association. Short of a ten-week miracle, the annual capacity figure seems set for a second consecutive steep annual decline.

The manufacturing facility, idled a few years ago, will produce bifacial modules. The company claims panel efficiency exceeds 20.5% and the factory has an annual production capacity of around 200 MW.