By Päivi Laine , 6 February 2026 Image Record Solar Cell Achieves 39% Efficiency Body Researchers at NREL created a six-junction solar cell achieving 39.5% efficiency under standard conditions. Tags Solar Research
By Thomas Brandt , 18 January 2026 Solar Panel Installation for Homeowners Thinking about solar panels? This guide covers panel types, inverters, battery storage, and payback periods. Tags Solar Energy
By Liisa Virtanen , 25 December 2025 Image Home Battery Costs Drop 40% Body Average home battery storage drops to $150/kWh, making solar plus battery viable without subsidies. Tags Solar Energy
