Residential PV

On the company’s Q4 earnings call, the world-leading EV manufacturer again prioritized delivering cars over growing low-margin energy storage products, while solar products were barely noted. Both verticals grew though, solar by 68% and storage by 32%.

An international research team has investigated how solar could be combined with thermoelectric coolers (TECs), which are small solid-state heat pumps used either for heating or for cooling. A system was built with six solar panels, an air duct system, four batteries, a charge controller, TECs, an inverter, heat sinks, a test chamber, and condenser fans.

The panel features 108 half-cells based on M10 wafers and a 10-busbar design. Its operating temperature coefficient is -0.341% per degree Celsius and its power tolerance reaches up to 5%.

The off-grid solar supplier said the fact its latest finance package is denominated in local currency will help encourage African commercial banks to be more ready to back PV.

While East Africa – and Kenya is particular – has made great strides in the provision of off-grid solar systems, Central Africa is a long way behind, according to a new report from IRENA and the African Development Bank. In terms of investment, the study’s authors wrote, much, much more will be required to achieve universal electricity access this decade.

Sun Age, an Italian mounting system supplier, has developed a special bracket for rooftop PV installations on sloped tile rooftops. It is made of stainless steel and can be deployed by fixing it to the surface with dowels or glue.

The BW-HY3600 and BW-HY4600 inverters can be integrated with existing on-grid or off-grid PV systems and a battery storage system of 48V. Both devices, according to German manufacturer Bosswerk, have AC and DC coupling and are particularly suitable for residential and commercial solar arrays.

A 100kW/1.5MWh zinc-air battery will be installed in Queens, New York, in combination with a combined heat and power system and a PV array. The pilot project is intended to demonstrate the long-duration energy storage capability of the zinc-air battery.

According to Asia Europe Clean Energy (Solar) Advisory (AECEA), this huge capacity may not be met by actual demand in the global market. Furthermore, the consultancy reveals that solar module prices should reach a price level of up to RMB 1.75 ($028)/W by the second half of the year, and that in 2021 new PV additions totaled 53 GW with more than half of this capacity being delivered by distributed generation.

Developed by Chinese specialist SolarMaster, the panel is sold in four different versions with photovoltaic output ranging from 340 to 545 W and solar thermal output of 910 to 1,436 W.