Understanding P50, P90, and P99 in solar energy
In the solar energy sector, P50, P90, and P99 represent the probability that a project will generate at least a certain amount of electricity in a given year. This article explains what these probabilities mean, why they are important, how they are calculated, and how to use them.
Indian scientists build 29.14%-efficient tandem solar cell with inverted top perovskite device
The researchers said they optimized the low-bandgap inverted perovskite cells through a passivating aluminum oxide (Al2O3) interlayer deposited via atomic layer deposition (ALD), which significantly helped improve device efficiency.
World’s largest 1 MW/100 MWh sand battery commissioned in Finland
Finnish startup Polar Night Energy has commissioned the world’s largest sand battery in Pornainen, southern Finland. The industrial-scale system delivers 1 MW of thermal power with 100 MWh storage capacity, covering up to a month’s summer heat demand and nearly a week’s winter demand for the local district heating network.
Waaree Energies secures 150 MW solar PPA with MPPMCL
Waaree Energies has signed a power purchase agreement to supply 150 MW of solar power to M.P. Power Management Co. Ltd (MPPMCL).
Solar risks: Hail, AI error, wildfire, and more
Hail damage remains a top risk to large-scale solar assets in USA, according to an annual report from kWh Analytics.
2025: A landmark year for solar energy
The IEA-PVPS 2025 Snapshot of Global PV Markets reveals a pivotal moment for solar power: global PV capacity surpassed 2.2 TW, with more than 600 GW installed in 2024 alone. As module prices fell due to oversupply, installation volumes continued to grow, highlighting both the strength and volatility of the global PV industry.
Financing India’s clean energy transition
To effectively meet its clean energy and net zero targets, India must address the current limitations in its green financing models. Additionally, the lenders must take into account sector specific risks.
Solarium Green re-enters solar module manufacturing with new 1 GW facility in Ahmedabad
The 1 GW solar module facility is scheduled to start commercial operation in the fourth quarter of the current fiscal year 2025-26.
Waaree Solar Americas secures 599 MW PV module order
The latest win follows a recent 586 MW solar module order won by the company.
New cooling gel could raise PV module efficiency by 12%
Researchers in Saudi Arabia have developed a hydrogel composite that absorbs moisture in solar modules overnight and facilitates evaporative cooling throughout daylight hours. The system has undergone lab tests and outdoor experiments on two continents.
