Author: solarenergy

Scientists in Spain have developed a semi-online technique to predict solar radiation at different locations in a photovoltaic installation. The proposed training approach is described as suitable for predicting highly variable time series. September 25, 2024 Lior KahanaResearchers from the University of Seville in Spain have developed a new machine learning algorithm for predicting very short-term solar radiation. The input is based on sensor data preprocessing using temporal and spatial correlation analysis of cloud movements.“Short- or very short-term forecasts of electricity production can help in areas such as real-time monitoring of the system, electricity prices or avoiding system overloads,” they…

CS energy And Luminance have completed two 5 MW landfill solar projects in Berkeley, New Jersey. These co-located projects are among the first ever to simultaneously close a landfill and build a solar system on top of the landfill. Including these projects, CS Energy has now completed more than 230 MW of landfill solar projects in the United States. These projects are expected to deliver more affordable clean energy to 1,800 homes, more than half of which will be low-to-moderate income (LMI) households. In total, these community landfill solar projects are expected to save participants approximately $6.4 million over the…

Research shows that the efficiency of hot-carrier solar cells has improved Hot-carrier solar cells, first proposed decades ago, have been a major focus in surpassing the Shockley-Quisser efficiency limit in single-junction solar cells. Despite their theoretical advantages, these cells have faced significant challenges, especially in rapidly extracting hot electrons across material interfaces. Recent studies have explored the use of satellite valleys in the conduction band to temporarily store hot electrons before extraction. However, a parasitic barrier at the interface between the absorber and extraction layers has posed a major obstacle. This barrier complicates electron transfer, which takes place in real…

The German research institute said it used a hybrid production route to apply the perovskite solar energy to the top PV device of the cell, based on an industrial textured silicon heterojunction technology. A standard silicon solar cell was used for the bottom subcell. September 25, 2024 Emiliano Bellini Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) announced today that it has achieved an energy conversion efficiency of 31.6% for a perovskite-silicon tandem solar cell.The result was confirmed by the CalLab calibration laboratory of Fraunhofer ISE.The researchers explained that that cell consists of a top perovskite PV device based…

The Italian manufacturer said its new multipurpose reversible heat pump has a seasonal coefficient of performance of 4.44 to 4.59 and a seasonal energy efficiency ratio of 7.72 to 7.53. It is said that it can reach a supply temperature of up to 55 °C. September 25, 2024 Emiliano BelliniItalian heat pump manufacturer Clivet has unveiled a multi-purpose reversible heat pump for industrial applications.The new product, called SCREWLINE-i (WiDHN-KSL1 PL), uses a hydrofluorolefin-based, azeotropic refrigerant known as R513a and inverter screw compressors.“Our new water-cooled multifunctional heat pump is innovative and quiet,” said company product manager Marco Zanin. pv magazine. “It…

Saipem, an Italian oilfield service provider, has developed a floating offshore PV platform in collaboration with its Norwegian unit Moss Maritime. September 25, 2024 Sergio MatalucciBy pv magazine ItalyItalian gas contractor Saipem has deployed a new offshore floating solar panel near the island of Froya in the Norwegian Sea, near Trondheim.Saipem’s Moss Maritime unit developed the XolarSurf prototype with Norway-based Kystteknikk Maritime Service AS. The system is built to withstand waves up to 8 meters high.“These waves can be found, for example, in much of Southeast Asia, the coastal areas of the Mediterranean, the Gulf of Guinea or the Middle…

Swiss consultancy Pexapark says European developers signed 13 power purchase agreements (PPAs) in August for a total of 460.4 MW, a decline of 62% month on month in terms of capacity. It represents the lowest monthly PPA volume since August 2023. September 25, 2024 Patrick JowettEuropean developers signed 13 PPAs for 460.4 MW in August, according to the latest report from Pexapark.The result is a volume decrease of 62% compared to July. The Swiss consultancy said this is the lowest monthly PPA capacity total since August 2023, with 318 MW across 10 deals, and “thus in line with similar patterns…

The deal follows Octopus buying a 24% stake two years ago. Image: Octopus energy Exagen Group, a major player in the UK solar and energy storage sector, has received a full acquisition of UK energy titan Octopus Energy Generation. The 100% share buyout, which was carried out on behalf of the Octopus Energy Development Partnership (OEDP) fund, managed by Octopus, follows an investment by Octopus in August 2022 in exchange for a 24% stake in the company. Octopus Energy Generation will now fully own Exagen’s development pipeline, which consists of more than 2.4 GW of solar and battery energy storage…

Array Technologies says it has developed a 77-degree solar tracker designed to protect solar energy from hail and high winds by responding to severe weather conditions. September 25, 2024 Ryan Kennedy Array Technologies single axis tracker with bifacial PV modulesImage: Array TechnologiesBy pv magazine USAArray Technologies, a provider of utility-scale PV trackers, said at the RE+ solar industry conference in September that it is developing a new solar tracker with a 77-degree tilt capability.The tracker is designed to tilt panels up to 77 degrees and protects them against hail and heavy wind damage during severe weather conditions.“Due to the increasing…

The site will combine 15MW of solar energy and BESS with a wind development. Image: ScottishPower Renewables. ScottishPower Renewables has been granted full planning permission for its Hollandmey energy project, which will combine solar, energy storage and wind power on a single site in Caithness, Scotland. The project, which will be located just eight kilometers south of John o’ Groats, will house ten wind turbines with a total capacity of 50 MW, plus a 15 MW solar project and a 15 MW battery energy storage system (BESS). To deliver biodiversity benefits to the area, the developers will restore 168 hectares…