The OneBox, from Indian manufacturer Vision Mechatronics, consists of a lithium battery, hybrid inverter and solar charge controller to give a hassle-free solution for electricity back-up during power outages. Solar rooftop owners are offered a grid feed feature to maximize net metering income from any excess power generated.
Scientists in India have tested a new inverter topology with a single-phase, induction-motor water pump. The seven-level inverter, with five power semiconductor switches, is said to be particularly efficient at reducing switching losses thanks to a pulse width modulation technique.
An Indian Institute of Technology research team analyzed around 300 studies about PV panel waste containing carcinogenic metals. The researchers said solar module recycling is not economically profitable and policy support is necessary to avoid panels being dumped in landfill.
Further, the lobby group has asked the ministry to remove the domestic content requirement for solar cells at least for the first year, while also highlighting the need to specify standards or guidelines for setting up of agrivoltaics systems in farm lands.
A memorandum of understanding signed by the institutions was not solar specific but the use of PV modules for shading, especially in agriculture, can reduce water consumption and help halt the expansion of deserts.
The invention converts energy produced by PV cells directly into mechanical motion without batteries or power electronics. Its developers claim the solar motor can drive irrigation water pumps and ventilation turbines for more than 20 years without maintenance.
The fossil fuel giant announced the plan in its latest annual results. The company envisages rolling out electric vehicle chargers at its petrol and diesel stations.
Analysis of the solar pumping programs being rolled out across five states backs claim switching irrigation systems to PV could give the nation a huge leg-up towards its renewable energy ambition.
The government of India has approved central financial support of more than Rs46,000 crore by 2022 to promote solar among farmers and in the residential sector. The KUSUM scheme for farmers has been allocated Rs34,422 crore and the rooftop solar program Rs11,814 crore.
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