SolarCity Corp., the biggest developer of U.S. rooftop solar panels, halted efforts to install and connect systems that include batteries for power storage because California’s utilities are reluctant to link them to […]

Two recent surveys of power and utility executives reinforce previous research showing that the industry knows that a transformation is coming. But dig a little deeper into the findings, and there is […]

Panasonic is laying the groundwork for a massive networked deployment of lithium-ion batteries in solar-equipped homes and businesses to solve Japan’s post-Fukushima energy crisis — and it’s looking to California and other […]

PJM Interconnection, the nation’s largest power transmission grid organization, announced recently that wind and solar power could generate about 30 percent of PJM’s total electricity for its territory covering the Mid-Atlantic region […]

On Wednesday, Minnesota became the first state to allow utilities a new method of contracting with distributed solar producers, called the market-based “value of solar.” If adopted by utilities, it will fundamentally […]

Last month the European Commission proposed that the EU should cut its domestic greenhouse gas emissions by 40 per cent by 2030, and aim for “at least” 27 per cent of its […]

Across the United States, but most pronounced in New England, the ratio of annual peak-hour electric demand to average hourly demand has risen over the past 20 years. In New England, the […]

On Wednesday, the Minnesota Public Utilities Commission voted to become the first state in the nation to come up with a methodology for calculating the value of solar power generated by consumers […]

From an energy perspective, Hawaii is unique. Located in the middle of the Pacific, the Aloha State runs on imported oil. But its island environment — from sunny days to active volcanoes […]