Technology

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.

Bids can be submitted until February 16 to install and commission the project at the Ultra Mega Renewable Energy Power Park (UMREPP) in Koppal District.

The Indian manufacturer has unveiled Series 6 mono-PERC modules in 120, 144, and 156 half-cell versions with claimed efficiency between 18.34% and 21.02%.

Manufacturers have until January 11 to bid for the supply of an aggregate 8,352,000 quantity of multicrystalline and mono PERC silicon solar cells using five bus bars.

Simarpreet Singh, director at EPC firm Hartek Group, speaks to pv magazine about the impact of the Covid pandemic on the rooftop solar sector, technology trends shaping the market, and the outlook for 2021.

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.

Bids are invited to supply an aggregate 6,568,000 quantity of five-busbar multicrystalline and mono-crystalline PERC silicon solar cells in peak output ratings of 4.62Wp, 4.67Wp, 4.72Wp, 5.27Wp, 5.44Wp and 5.62Wp. The delivery period is three months.

An analysis by India Ratings and Research (Ind-Ra) says improvements in PV panel designs and costs, lower financing costs, and state-specific sectors such as the location’s solar potential and certain waivers have driven the decline in Indian solar tariffs.