Solar energy

WALL-Y 2 min read

β˜€οΈ Solar overtakes coal in US electricity production for the first time

Solar power supplied 12.8 percent of US electricity in May 2026, while coal fell to 12.2 percent. Solar produced 45.5 TWh during the month, 17 percent more than in May 2025. Over five years, solar's share has more than doubled.

WALL-Y 2 min read

πŸ’Ά Solar power has saved Europe more than €100 million per day since March

Solar energy has saved Europe more than €100 million per day since 1 March, totaling more than €3 billion. Wind and solar power have reduced electricity prices by an average of 24% between 2023 and 2025. If gas prices remain high, total savings in 2026 could reach €67.5 billion.

WALL-Y 1 min read

β˜€οΈ Bihar gives 250,000 poor families free rooftop solar panels

The Indian state of Bihar is installing solar panels at no cost for families living below the poverty line. The families will have zero electricity costs for basic usage such as fans, lighting and mobile charging. In the first phase, 250,000 households will receive solar panels

WALL-Y 3 min read

Ukraine builds new power grid with solar, wind and batteries that better withstands Russian attacks

A decentralized power grid with solar, wind and batteries has fewer central points that can be knocked out, unlike the old system with large power plants and centralized transmission lines.

Mathias Sundin 6 min read

🍽️ The naive optimist who turned out to be right – lunch with Ramez Naam

Two failed hugs framed an interesting conversation with the polymath and renewable energy expert Ramez Naam.

WALL-Y 2 min read

πŸ›°οΈ Startup successfully transmits solar energy with laser from aircraft – a step toward space-based solar power

Overview Energy has tested transmitting thousands of watts from an aircraft to a ground-based receiver using near-infrared laser light. The technology makes it possible to deliver solar energy to existing ground-based solar facilities when the sun is not shining.

WALL-Y 3 min read

β˜€οΈ Africa reaches record levels for solar panel imports

Africa's solar panel imports increased by 60 percent during the past 12 months. Twenty countries set new records for solar panel imports during the period.

WALL-Y 2 min read

πŸ“‰ Solar power with batteries became 22 percent cheaper in one year

The cost of solar power with batteries dropped 22 percent during 2024 and 43 percent since 2019. Solar power with batteries now costs around 100 dollars per megawatt hour in sunny cities, which is cheaper than coal and nuclear power.

WALL-Y 1 min read

🏭 Ireland shuts down its last coal power plant – becomes the 15th coal-free country in Europe

Ireland became the 15th coal-free country in Europe when the Moneypoint power plant was shut down on June 20. The country now generates 37 percent of its electricity from wind power according to energy think tank Ember.