Batteries and hydrogen to make residential off-grid PV technically feasible
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.
Panasonic launches module series compatible with its Evervolt battery
Available in four different products, the series features a conversion efficiency of 20-21.2%. Two of the panels are packaged in a sleek, all-black aesthetic.
Punjab seeks partners for residential rooftop solar
January 4 is the last date for EPC contractors, manufacturers and system integrators to submit techno-commercial bids for grid-connected rooftop solar capacity that shall come up in residential premises and residential welfare associations/group housing society premises in the state.
Hybrid power solutions using solar with grid take off in India
A recent GOGLA report indicates an increasing trend towards hybrid power solutions that integrate DC solar with AC grid power, and appliances that integrate both AC and DC power. In particular, the sales of hybrid solar inverter UPS in India is growing at 25% annually, much faster than conventional inverters’ 10% annual market growth.
Rooftop PV vs. rooftop farming
U.K. researchers have developed a way to optimize urban rooftop use with solar PV and agriculture.
Rooftop solar addition increased 112% y-o-y in second quarter
India added rooftop solar capacity of 399 MW in the second quarter (July-Sept) of FY 2020-21, compared to 188 MW installed in the corresponding period last year.
Telangana tenders for residential rooftop solar
Bids are invited to install and commission various capacities (11-500 kWp) of grid-connected rooftop solar plants at individual households and residential buildings across the state. Bidding closes on November 25.
World could add more than 900 GW of solar by 2025 if politicians grasp the nettle – IEA
With the International Energy Agency publishing its latest five-year clean energy forecast today, pv magazine takes a look at the solar content of the 162-page document.
Rooftop solar market in 2020
It has been a rocky year for installers with issues like availability of modules from Chinese suppliers, restricted construction due to local lockdowns, and uncertainty over import duties. Going forward, the market could see a dramatic rebound if net-metering is allowed with a current cap of 1 MW and re-introduced in the states that have shifted to gross-metering.
Indian researchers create bio-inspired algorithm for MPPT optimization
Indian researchers have created a hybrid salp swarm algorithm to optimize MPPT tracking in PV systems under partial shading conditions. It is based on the swarming behavior of salps in the ocean.
