California + the worldSolar & energy,
Solar & energy,
week by week.
A weekly selection of news about solar roofs, panels, batteries and home energy. What happened, what it means, and the original sources.
Latest editionSep 122026 · 4 stories
Source window: September 6, 2026 – September 12, 2026
Reading outage risk. Following battery progress.
This week: California reliability data, a local clean-energy grant window, and two international perspectives on batteries.
Read the weekly editionOutage averages do not describe every neighborhood.
California · Program announcementA local clean-energy grant round opens September 15.
World · Research announcementMore energy per kilogram, still a development result.
World · New analysisBattery progress needs manufacturing as well as invention.
Our editorial filter
Useful before urgent.
We prioritize original announcements, official documents and published research. Every item carries a source date, a clear location and an explanation of its practical limits.
Research results, proposed rules and products you can buy are identified separately. Older material is kept in the dated archive. If a week brings no useful verified developments, we do not manufacture a headline.
How the weekly edition works ↗