Solar
Puerto Ricans are powering their own rooftop solar boom
Residents and shop owners are installing solar-plus-battery systems in the aftermath of Hurricane Maria. Will the government get on board?
By Maria Gallucci .
Batteries
Long-duration energy storage
The biggest grid storage project using old batteries is online in Texas
Startup Element Energy set out to prove that second-life batteries could deliver cheaper energy storage safely and at scale.
By Julian Spector .
-
-
Policy & regulation
California's plan to avoid blackouts relies on fossil fuels as last resort
Gov. Newsom is seeking $1B for home batteries, $300M to reduce demand — and $5.2B that would likely go to gas plants and diesel generators.By Jeff St. John .
-
Batteries
Chart: Lithium prices are through the roof this year
What will record-high lithium costs mean for lithium-ion batteries, which are key to electric vehicles and grid energy storage? -
EV charging
Is ‘vehicle-to-everything’ charging ready for prime time?
Bidirectional charging could provide home backup power, stabilize the grid and decrease costs for EV owners. A new consortium aims to make it mainstream.By Jeff St. John .
-
Podcast
The big rush for battery metals
Will constrained supplies of metals such as lithium, cobalt and nickel become the bottleneck hindering EV adoption?PlayBy Shayle Kann .
-
Batteries
DOE backs US battery materials production with $107M loan
China dominates the global supply of graphite for batteries. DOE's first vehicle tech loan in a decade will help Syrah Technologies make it in Louisiana.By Jeff St. John .
-
Guides and how-tos
Ask these 10 questions if you want to get rooftop solar
Should you buy or lease solar panels? Go with a big installer or a small one? Add a battery? We'll walk you through the basics.By Julian Spector .
-
Energy storage
Chart: Outpacing even China, the US takes the lead in grid battery investment
Global storage investment grew from $460 million to $4.7 billion in just seven years. -
Electrification
New tools and tech to prep your electrical panel for an all-electric home
Solar, batteries, EVs and electric heat pumps can overload home electrical panels. Lots of companies are coming up with solutions.By Jeff St. John .
-
Batteries
People power: Hawaii utility wants to pay households to share clean energy
Hawaiian Electric and rooftop solar installers have agreed on a plan to shore up the state's grid. California, are you watching?By Julian Spector .
Sponsored