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Technology

Low-cost bio-inspired electrocatalyst for rechargeable metal-air battery

Indian scientists have developed a low-cost electrocatalyst based on iron, manganese and N-doped carbon derived from fish gills (Fe/Mn/N-FGC) that increased the performance of a homemade rechargeable zinc-air battery when used as the air cathode. The Fe/Mn/N-FGC cathode based battery achieved open-circuit voltage of 1.41 V and a large power density of 220 mW/cm2 at 260 mA/cm2 current density—compared to commercial platinum/carbon based battery’s 1.40 V and 158 mW/cm2—with almost stable charge-discharge voltage plateaus at high current density. 

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Solar inverters vs. cyberattacks

A U.S. research group is now developing new inverters to protect solar installations from cyberattacks. The researchers also aim to create new cybersecurity standards. Professor Alan Mantooth, the group’s research coordinator, said that inverters can be shut down if they are hacked, or contribute to grid instability and result in the overcharging of batteries, while potentially creating problems that we still don’t know how to address.

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BHEL tenders BOS for NTPC’s 100 MW (AC) floating solar plant

Bids are invited for supply, installation and commissioning of balance-of-system (BOS) items for NTPC’s 100 MW (AC) grid-connected floating solar plant in Telangana. Bidding closes on April 27.

A non-flammable lithium metal battery

Researchers from Deakin University in Australia claim their battery chemistry is based on a new class of electrolyte material which carries no risk of uncontrolled thermal events and represents a viable alternative to rechargeable lithium-ion batteries.

Vikram Solar bags 300 MW solar project from NTPC

The Rs 1,750-crore project—under the second phase of Central Public Sector Undertaking scheme—is to be developed using domestically manufactured solar cells and modules.

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Covid-19: Challenging times underscore the importance of energy planning and data management

Given the close links between energy and economy, an impact analysis is needed to evaluate the sector and initiate suitable measures against unusual circumstances. Government policy thinktank NITI Aayog is working on a roadmap to improve energy data management system for India. The centralized energy data unit will host all demand and consumption data related to all forms of energy, which can be used by researchers, policymakers and business strategy formulators alike.

SECI invites global bids for 2.5 GW solar projects in Karnataka

The interstate transmission system (ISTS) connected projects—to be developed on build-own-operate basis in the Koppal Solar Park—shall be awarded through international competitive bidding followed by reverse auction. Bids can be submitted till May 29.

European investor ThomasLloyd, SolarArise launch 75 MWp solar project in Uttar Pradesh

The project—requiring investment of 34.9 million euros—will be built by EPC contractor Jakson with modules supplied from JA Solar.

Tata Power Solar bags 300 MW CPSU II project from NTPC

The grid-connected solar project—scheduled for commissioning in September 2021—is valued at Rs 1730.16 crore and will be developed using Tata Power’s own cells and modules.

How much money can you make with PV-assisted EV charging stations?

A French-Turkish research team has created an economic model to optimize scheduling for solar-powered EV charging units. The proposed model suggests that such projects might be more profitable today than at the end of the decade, depending on a wide range of variables.

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