ACEEE: 32 cities improve energy efficiency score; Boston tops list

Boston, New York and Seattle topped the American Council for an Energy-Efficient Economy's biannual scorecard that ranks 51 U.S. cities on energy-saving efforts.

By Kristin Musulin , Jackie Snow • May 16, 2017

Are energy-efficient building technologies reaching their stride?

Thirty or so years from now, building technologies may look as basic and antiquated as a Commodore 64 PC does when compared to smartphones.

By Tom Machinchick • May 16, 2017

Tesla, Green Mountain Power roll out $15/month BTM battery program

Customers of Green Mountain Power can have backup power for their entire home at a relatively low price, thanks to Tesla's software and battery improvements.

By Robert Walton • May 16, 2017

Duke’s truck-stop electrification project could mean big fuel savings

By allowing up to two dozen rigs to plug in at a North Carolina truck stop, Duke's project will help save 25,000 gallons fuel annually.

By Robert Walton • May 15, 2017

Secure communications for critical infrastructure? There’s a network for that

Private network service provider Full Spectrum recently announced plans to deploy a nationwide wireless data service for mission critical communications.

By Jackie Snow • May 11, 2017

Storage developer Sunverge pairs up with PetersenDean for energy storage offering

PetersenDean will pair Sunverge's energy management platform with its rooftop solar arrays to help customers curtail bills and provide backup power. 

By Krysti Shallenberger • May 11, 2017

Draining the swamp: How DC is remaking its water treatment system

The nation's capital wants to eliminate combined sewer overflows with 18 miles of new tunnels and green infrastructure programs.

By Jackie Snow • May 10, 2017

Tesla announces it will open pre-orders for solar roof shingles today

The news comes a little later than expected as the electric car maker continues its foray into residential rooftop solar.

By Hallie Busta • May 10, 2017

In Massachusetts, utilities take a collaborative approach to EV infrastructure

The state wants to see a 50-fold increase in electric vehicles, prompting a novel charging buildout approach from utilities.

By Robert Walton • May 10, 2017

NRDC study finds tap water contaminants in all 50 states

There were more than 80,000 reported violations of the Safe Drinking Water Act (SDWA) by community water systems in 2015, according to the Natural Resources Defense Council.

By Jackie Snow • May 9, 2017

US mayors launch task force to shape Trump’s infrastructure plans

The group, led by Los Angeles Mayor Eric Garcetti, will attempt to help align the administration's future proposal with the cities' priorities.

By Kim Slowey • May 9, 2017

Boulder plans to double EV charging ports by summer

The progressive Colorado city wants to use a $100,000 grant from a nonprofit to boost the number of electric vehicles on the road. 

By Krysti Shallenberger • May 8, 2017

California’s storage incentive program opens to strong battery demand

Tesla and AMS lead in allocations for large-scale storage in the first round of SGIP allocations. 

By Peter Maloney • May 5, 2017

Florida lawmakers pass bill to eliminate property taxes on solar panels

The legislation was part of a pro-solar ballot initiative that Florida voters overwhelmingly embraced last summer.

By Robert Walton • May 5, 2017

Bucking Trump, US cities press ahead on clean energy, climate goals

More than two dozen cities now have renewable energy commitments, putting them on the front lines of climate action in the Trump era. 

By Jackie Snow • May 4, 2017

Columbus, OH leads Midwestern US cities in solar power payoff

Homes furnished with solar installations sold for more than those without in these 10 markets, according to Redfin. 

By Mary Tyler March • May 4, 2017

A new smart-tinting glass is now on display in San Francisco

The glass, which can be installed in both interior and exterior locations, can transition from clear to dark in seconds.

By Jackie Snow • May 3, 2017

US mayors urge cities to transition to renewable energy sources

The new Mayors for 100% Clean Energy national initiative encourages municipalities to make the pledge ahead of the U.S. Conference of Mayors in June.

By Mary Tyler March • May 3, 2017

Atlanta pledges 100% renewables by 2035

The Georgia city is the 27th in the country to target 100% clean energy, according to the Sierra Club.

By Robert Walton • May 3, 2017

Under pressure: Singapore to invest in 10K water-saving smart showers

A study indicates households given real-time information about their water usage save approximately 5 liters of water per person per day.

By Jackie Snow • May 2, 2017

Safety first: A microgrid project in Brooklyn tackles lithium-ion fire fears

A microgrid project in Brooklyn demonstrates progress in New York's efforts to adopt safety guidelines for lithium-ion energy storage installations.

By Peter Maloney • May 2, 2017

San Diego water authority wants proposals for 500 MW pumped storage

The request for proposals builds on an earlier one from this year, as the water authority looks for more detailed proposals from the 18 respondents. 

By Peter Maloney • May 2, 2017

Report: Almost half of Fortune 500 companies have climate, energy goals

Larger companies are working on energy issues most aggressively: More than 60% of the 100 biggest firms have clean energy goals, a new WWF report found.

By Robert Walton • April 28, 2017

Trump tax plan leaves infrastructure out

Some lawmakers were expecting President Donald Trump to earmark tax revenue from the repatriation of corporate earnings for infrastructure spending.

By Kim Slowey • April 28, 2017

Is rooftop solar just a toy for the wealthy?

A new report finds the income gap for rooftop solar is narrowing, but work remains to spread distributed energy to all. 

By Krysti Shallenberger • April 27, 2017