Technology and R&D

The use of polymer electrolyte membrane fuel cells as backup power generation in solar microgrids could drive down costs and improve efficiency, according to an international group of researchers. They have proposed a new energy management system that could be ideal for hybrid solar-hydrogen microgrids in remote locations.

The government should consider offering a 50% capital subsidy for setting up R&D and quality testing infrastructure within the manufacturing units and a 200% super-deduction for the R&D expenditure on new and clean solar technology development. Simultaneously, it should look at implementing tariff barriers on imports for at least four-five years.

Scientists in Japan demonstrated a hard-carbon electrode that can greatly increase the capacity of a sodium-ion battery. With further work on the long-term performance, the discovery could make sodium-ion batteries better able to compete on energy density with their lithium-ion counterparts.

The result was confirmed by Germany’s Institute for Solar Energy Research (ISFH).

A new report says the imposition of safeguard duties and basic custom duties is only a partial solution to help the domestically produced solar modules remain competitive with imported panels. The government needs to adopt a long-term strategy towards PV manufacturing that supports backward integration and sustained innovation.

Researchers in Finland have demonstrated the technical feasibility of an off-grid residential PV system combined with short-term battery storage and seasonal hydrogen storage. The proposed model is applicable only to northern climates, as higher levels of solar radiation in southern locations would mean a reduced need for seasonal storage. It was tested in an existing single-family house in Finland with a 21 kW rooftop array and a ground source 6 kW heat pump.

The challenge covers battery storage innovations for both power and electric mobility space. Winning technologies will get a grant of up to $50,000.

Scientists in Germany evaluated multiple silicon cell concepts based on both cost and efficiency in serving as the bottom layer in a perovskite-silicon tandem cell. The study, based on both simulation and experimental work, outlines advantages to various approaches with the silicon cell and concludes that in almost every case, perovskite-silicon tandem cells have the potential to bring solar costs down below what could be achieved with silicon alone.

Scientists in Russia have analyzed the most important technological advances achieved for solar water pumps over the past decades and have indicated the roadmap that future research should follow to expand their use and application.

India’s Department of Science & Technology and the Swedish Energy Agency have launched a collaborative funding program for Indian and Swedish companies that aim to jointly develop new technologies, services and processes in the area of smart grids.