Sensorless fault-detection method for rooftop, large-scale solar
Turkish researchers have developed an algorithm to distinguish faults and changes in PV plant output. The sensorless method only uses electrical data gathered from the DC inputs of inverters. They tested it on 8.5 MW of ground-mount PV at nine sites, as well as 8.2 MW across 18 rooftops.
Renewables compete with coal and shale oil as Jordan pursues energy independence
The kingdom has had a ban on new large scale clean energy projects since January 2019 as Covid-19 exacerbated a situation in which generation capacity already outstripped supply. Lifting that embargo, and re-starting renewables auctions would be a step in the right direction, according to IRENA.
Solaredge records pandemic progress despite tough final quarter
Full-year revenues nudged up despite tough comparisons with the end of 2019 for the final quarter of last year. The inverter maker expects to log revenues of $385-405 million in the current three-month window.
Sustaining the grid of the future: the role of central inverters complemented with advanced PPC/EMS
In this pv magazine Webinar, we’ll take a closer look at Sungrow’s SG3125HV-30 central inverter, its ability to connect storage on the DC-side and, together with the Inaccess PPC/EMS, the litany of grid ancillary services – like voltage control, power frequency control, fault management and integration on weak grid algorithms.
Israel reveals bidders for 300 MW solar-plus-storage tender in Negev Desert
The Israeli authorities have selected 24 bidders for the tender’s final phase. Construction of the solar-plus-storage facility is planned for late 2021, and completion in 2023.
Augwind’s compressed air tech for renewables storage
Augwind CEO Or Yogev recently spoke to pv magazine about the Israeli company’s new storage solution for the renewables sector. The underground compressed-air storage specialist recently secured 166 MWh of capacity in Israel’s latest solar+storage tender, and plans to take equity stakes in all five projects.
Novel algorithm for integrating solar, wind, hydrogen
A new, nature-inspired algorithm has been applied by scientists in Egypt and Saudi Arabia to optimize the production of green hydrogen via solar and wind power generation. The proposed energy system consists of PV and wind power generation, a water electrolyzer, a tank of hydrogen gas, a fuel cell, and an inverter that brings the generated electricity to final consumers.
Five commercial offtakers for $33m Jordanian solar portfolio
Telecomms, retail and garment manufacturing businesses have signed up to consume the electricity to be generated by eight solar projects in Jordan which will harness grid infrastructure to transfer an estimated 81 GWh of clean power annually.
Risk vs. reward: Optimizing energy yield with 182mm wafers
The shift to larger wafer formats has been by far the most important trend in the PV supply chain over the past year. While other sizes are also being introduced to the market, the 182mm product is initially expected to represent the largest share. And it is viewed by many as the optimal way to ensure considerable gains in energy yield whist minimizing disruption to supply chain and end markets. We’ll delve into these claims surrounding modules based on the 182mm wafer, taking a closer look at Jinko’s Tiger pro module series.
Stochastic fractal search algorithm to measure parameters of PV modules
An international research team has used, for the first time, a powerful metaheuristic and a nature-inspired algorithm to improve the estimation of the parameters of PV cells and modules. The algorithm imitates the natural phenomenon of growth and uses the diffusion process, based on random fractals.
