"You need to speak to several contractors before making a final selection," said Michael Trahan, a solar energy expert.

Let’s encourage and subsidize rooftop solar but also recognize that 69% of the island’s power comes from burning oil.

Over the past two decades, China has transformed from a strategically weak energy power, dependent on imports of oil and gas, into the world leader in clean energy. Today, China produces the most wind ...

How Microsoft met its 2025 goal of matching 100% of its electricity use in datacenters and other operations with renewable energy purchases.

The City of Johannesburg risks pushing many households off-grid with excessive postpaid charges, which it makes mandatory for rooftop solar users.

Home battery systems aren't just for backup power anymore. In some states, homeowners are tapping into stored energy to sidestep peak electricity prices and lower their bills.

Despite hosting huge hydropower plants, Amazon people still pay high energy tariffs — so they found another way.

Heron Power, backed by Andreessen Horowitz and Breakthrough Energy, is scaling up production of solid-state transformers that move power to the grid more efficiently.

Legislation in Maine, Vermont, New Hampshire, Massachusetts and Rhode Island would allow small solar panels to plug directly into home outlets, expanding access to clean energy.

But there are big differences from state to state and region to region. Some places — like California and the Northeast — have seen mammoth price increases that outpaced inflation, while costs have ...

These systems are more affordable and can be mounted in smaller areas like balconies and patios so people living in ...