New Arizona renewable ballot initiative could spark utility opposition

The measure would boost the state's Renewable Portfolio Standard to 50% by 2030, following a proposal from a state official to raise it to 80% by 2050. But the state's largest utility might not be on board.

By Krysti Shallenberger • Feb. 15, 2018

FERC issues storage, reliability orders, calls conference on aggregated DERs

The commission directed grid operators to design rules that allow storage to provide energy, capacity and ancillary services, as well as set wholesale prices as buyers and sellers. 

By Gavin Bade • Feb. 15, 2018

Explore the Trendline➔

Sustainability

Companies are pursuing increasingly ambitous sustainability goals around clean energy, but integrating rising amounts of renewables, minimizing environmental impacts, and achieving carbon reduction targets can be challenging.

By Utility Dive staff

How solar owners' post-hurricane demand for batteries could impact utilities

Extreme weather is driving customers to solar-plus-storage as backup power, but they can use it to cut back on electricity use, too

By Herman K. Trabish • Feb. 15, 2018

ISO-NE presses FERC to approve capacity market reform

The grid operator argues its two-part capacity market proposal will better integrate subsidized resources than existing rules. 

By Gavin Bade • Feb. 14, 2018

Resilience, pipelines & PURPA: FERC regulators preview major issues at NARUC

State utility regulators heard from all five federal energy regulators at a conference in Washington this week.

By Gavin Bade • Feb. 14, 2018

California regulators first to allow multiple revenue streams for energy storage

The state has approved rules that increase the ways for energy storage systems to make money, for example, through frequency regulation, capacity or spinning reserve services.        

Feb. 13, 2018

New Massachusetts bill seeks 1.77 GW storage target, quicker renewables transition

The legislation would also direct state regulators to develop rules that exceed those adopted by the United Nations Paris Climate Agreement.

By Robert Walton • Feb. 13, 2018

Batteries will boost yearly solar plant output by 500 MWh, FPL says

The utility's Citrus Solar Energy Center was completed in 2016, but now has a 4 MW/16 MWh storage system that will allow the plant to continue sending out electricity after the sun goes down.

By Robert Walton • Feb. 12, 2018

Trump budget would gut EPA, DOE renewables office

The budget would cut the DOE renewables office by 65% and eliminate ARPA-E and the agency's loan programs. EPA would be cut by nearly a quarter. 

By Gavin Bade • Feb. 12, 2018

At NARUC, three actions to support the grid of the future

A group of solar companies and advocates lay out out what utility commissioners should consider during NARUC's annual winter meeting

By Anne Hoskins; Abigail Hopper; Tom Starrs; Thomas Plagemann; Sachu Constantine • Feb. 12, 2018

APS to install 50 MW, 135 MWh solar-shifting battery

The contract with developer First Solar will allow APS to use the battery to deliver solar power when electricity use is at its peak, 3-8 p.m. each day.

By Gavin Bade • Feb. 12, 2018

Is PURPA done? New bill takes aim at law's mandatory purchase obligation

The law has been under fire for much of its 40-year history, but changes proposed in November could be the most significant yet.

By Peter Maloney • Feb. 12, 2018

Tesla plans to triple battery storage deployments in 2018

But its solar business appears to be slumping, in part due to a change in the payment model, the company says. 

By Robert Walton • Feb. 9, 2018

Markets matter: US wind belt expands as more utilities do the math

The DOE NOPR and the tax overhaul bill initially threatened the continued growth of wind energy. But "ultimately, clean power emerged a winner on policy, again," Vestas Americas President Chris Brown writes.

By Chris Brown • Feb. 8, 2018

The 'small miracle' that may lead to California's net metering successor

Sooner or later, retail rate net metering must go, stakeholders agree. But solar advocates say later, while utilities say sooner, and therein hangs the tale.

By Herman K. Trabish • Feb. 8, 2018

Hawaii regulators approve HECO's suite of demand response, solar programs

The utility has proposed demand response programs aimed at harnessing electric vehicles, appliances and storage, while the new solar programs aim to compensate rooftop solar users.

By Robert Walton • Feb. 8, 2018

Energy tax credits included in Senate budget deal

Tax credit extensions for nuclear plants and a number of natural gas and renewable energy technologies are in the Senate package, but are likely to face opposition in the House.

By Gavin Bade • Feb. 8, 2018

China wants compensation for US solar panel tariffs as industry braces for job losses

A string of countries have started filing challenges at the World Trade Organization over a recent decision by the Trump administration to impose tariffs on solar equipment. China is the latest. 

By Krysti Shallenberger • Feb. 7, 2018

Tech company Switch announces 1 GW solar farm for Nevada

The project, dubbed Gigawatt 1, would cost "half as much" as NV Energy's green offerings, the company said, and could be the biggest project in the U.S.

By Robert Walton • Feb. 7, 2018

AES prepares for layoffs at US utilities as part of wider restructuring effort

The energy company is pushing to shrink its carbon footprint and pivot to cleaner energy resources. 

By Peter Maloney • Feb. 7, 2018

NRG sells renewable energy business, Southern plants in reorganization move

The company says the sale will bring in $2.9 billion in cash and more is to come as it continues to remake itself.

By Gavin Bade • Feb. 7, 2018

EIA: Low prices, rising production to boost gas generation through 2050

While natural gas grows the most on an absolute basis in EIA's projections, reaching 39% of U.S. energy production in 2050, nonhydroelectric renewable energy grows the most on a percentage basis.

By Peter Maloney • Feb. 6, 2018

Tesla to outfit 50K Australian homes with solar+storage for 250 MW virtual power plant

The electric car company wants to build what it calls the world's largest virtual power plant, harnessing 250 MW of solar power and 650 MWh of energy storage.

By Peter Maloney • Feb. 5, 2018

Honolulu storage permits surge 1,700% in one year, new report says

State regulators' decision to eliminate net metering and cap interim incentive programs made energy storage systems more attractive.

By Robert Walton • Feb. 5, 2018

New Hampshire rejects Northern Pass transmission, throwing project into doubt

The decision is sparking concern in Massachusetts, which just last week selected the project to help meet state clean energy goals. 

By Robert Walton • Feb. 2, 2018