80% of transit buses expected to go electric by 2040, report forecasts

California regulators expect to vote in September on a proposal to transition all transit systems in the state to 100% zero emissions by 2040.

By Iulia Gheorghiu • May 23, 2018

EV charging could significantly reduce storage needs, DOE lab finds

Electric vehicles could play a major role in balancing the grid by soaking up excess solar generation during the middle of the day, according to analysts at Lawrence Berkeley National Laboratory.

By Robert Walton • May 22, 2018

Explore the Trendline➔

Top 5 Stories from Utility Dive

The U.S. clean energy transition is expected to accelerate in 2024 but faces question around transmission, financing, federal elections and other issues.

By Utility Dive staff

Getting paid to charge a battery is an attractive but limited opportunity, analysts say

While Tesla's Australian energy storage facility apparently made a windfall from negative prices, analysts say such prices are too rare to be reliable. 

By Peter Maloney • May 22, 2018

Federal government halts linework on Puerto Rico's grid

FEMA has ended the restoration portion of its mission to repair Puerto Rico's grid two weeks ahead of the official start of hurricane season.

By Robert Walton • May 21, 2018

Hawaii Electric improvising with microgrids as lava stalls resiliency efforts

The utility operator on Hawaii's big island is "handling the situation as well as anyone could," according to the state's PUC.

By Iulia Gheorghiu • May 18, 2018

Public power utilities face growing risk from renewables shift, says Moody's

Credit risks for utilities with a higher share of coal power in their generating mix, such as municipal utilities, center on the potential for stranded assets.

By Peter Maloney • May 18, 2018

APS: Controversial RFP does not violate Arizona gas moratorium

Reliability concerns about energy storage prompted Arizona Public Service to limit its role in a pending contract request, executives said. 

By Gavin Bade • May 17, 2018

Tesla software update allows Powerwall 2 owners to optimize for time-varying rates

The Time-Based Controls update will enable customers to save on energy bills, but the rollout has not yet reached all customers.

By Robert Walton • May 15, 2018

Nevada regulators allow utilities to own EV charging stations

The Public Utilities Commission also approved funding for storage and a low income solar program.

By Robert Walton • May 15, 2018

Competitive solar-plus-storage moves closer to reality

Incentives and economics result in more pairings of solar power and energy storage.

By Peter Maloney • May 14, 2018

'Stunning' APS RFP could violate Arizona gas moratorium, critics say

The request for 800 MW of peaking capacity limits renewables and energy storage to 100 MW, which clean energy advocates say could run afoul of a regulatory pause on gas investments.

By Gavin Bade • May 14, 2018

South Australia's grid service costs slashed 90% by Tesla battery

New data shows the 100 MW / 129 MWh battery has already taken over 55% of the state's frequency control ancillary services.

By Iulia Gheorghiu • May 14, 2018

Agility is the antidote to disruption: Strategies to unlock your utility's agile performance

Unlock your utility’s agility to evolve into a resilient company that thrives in the most uncertain business climates.

By Kate West • May 10, 2018

EnSync's solar+storage to allow energy sharing in Hawaii

By combining solar energy and storage to share power, the company says it can increase system efficiency and lower costs.

By Peter Maloney • May 10, 2018

California to require rooftop solar for new homes

The state is the first to mandate that new homes be built using advanced energy efficiency measures and rooftop solar, starting in 2020.

By Iulia Gheorghiu • May 9, 2018

Washington utilities need better carbon cost estimates in IRPs, regulator says

Washington utilities file an integrated resource plan every two years. Regulators want to see a more robust assessment of climate change risks in the next one.

By Peter Maloney • May 9, 2018

New York City moves to streamline energy storage permitting

City agencies and officials are working to remove barriers to energy storage installations, with comprehensive new guidelines on installing outdoor lithium-ion batteries.

By Peter Maloney • May 8, 2018

Tesla's Musk talks 'gigawatt-hour scale' storage project

Tesla CEO Elon Musk is thinking big and bigger, building on the success of the company's 129 MWh South Australia project.

By Peter Maloney • May 8, 2018

EIA: Gas to outpace renewables for 2018 US gen additions

For the first time in five years, renewables are expected to make up less than 50% of capacity coming online.

By Robert Walton • May 7, 2018

Solar has transformed into solar-plus-storage: What will net metering become?

Two prominent policy actions that could drive a more innovative use of solar-plus-storage are time-of-use rates and three-part rates with demand charges.

By Herman K. Trabish • May 7, 2018

[Podcast] Where's the energy cloud going?

Welcome to Beyond the Electron: The Energy Cloud podcast series. 

By Utility Dive's studioID • Updated Feb. 12, 2020

How can US utilities be ready when everything changes?

EY has modeled three critical tipping points for utilities on the way to a new energy system. In Europe and Oceania they're staggered, but in the U.S., they'll arrive in much quicker succession, Dana Hanson writes.

By Dana Hanson • May 4, 2018

Solar at the crossroads: Is utility-scale, distributed or both the way to go?

Sunrun says solar's future is on rooftops, but solar advocates and utilities say an advanced power system with utility-scale and distributed energy resources is a better bet.

By Herman K. Trabish • May 3, 2018

HECO proposes 2 large battery projects to support renewables push

Proposals include 20 MW and 100 MW battery systems, which must be approved by state regulators.

By Robert Walton • May 3, 2018

100-Hour storage? DOE launches $30M program to explore new technologies

The program is designed to address the needs of intermittent generation sources, such as wind and solar, by enabling a new set of applications that can provide long lasting backup power.  

By Peter Maloney • May 1, 2018