Forecasting load growth and planning the utility investments necessary to handle changing electricity demand used to be a straightforward exercise.

Utility planners knew that customers in their service territory more or less shared the same load pattern. The only real wrinkles planners had to navigate as they considered grid upgrades were entirely new loads — like from a new subdivision — or widespread embrace of technologies like LED lighting that reduce demand.

The rapid influx of distributed energy resources (DER) like rooftop solar photovoltaics, energy storage and electric vehicles has introduced significant complexity to the formulation of accurate forecasts planners need to cost-effectively accommodate DERs while maintaining grid reliability. Even forecasts that

Earlier this year, Pacific Gas & Electric faced pushback from environmental and solar and energy storage industry groups to a plan to deploy natural gas generators to back up communities facing multi-day fire-prevention blackouts. The groups argued that California utilities shouldn’t be adding new carbon and pollution-emitting resources when the state is trying to meet ambitious zero-carbon goals. 

Now PG&E is planning to rely on mobile diesel generators instead, at least for this year. But as California regulators grapple with the best way to provide multi-day power backup for wildfire and blackout-prone communities, a new report says that solar and batteries can’t do the job alone.

Offshore wind is one trend where Europe's renewable energy industry has taken an early lead. Corporate PPAs? Not so much.

But as corporate onshore wind and solar deals pick up in Europe, the first handful of offshore wind deals are now getting done. Denmark's Ørsted has signed three corporate power price agreements for offshore wind farms in the U.K. and Germany, totaling 154 megawatts. Experts see scope for more deals on both sides of the Atlantic.

Offshore wind is a "very obvious solution for corporate PPAs, because of its scale and it’s as green as you can get,” said Rasmus Errboe, senior vice president at Ørsted Offshore, and the company’s lead on corporate

Whether booming off-grid power demand in emerging markets is met with grid extension or distributed renewables will be central to the growth story of the global clean-power sector.

As the technological and financial tool kit for providing affordable, reliable, appropriate and clean power to every household and business continues to expand, deployments of off-grid, decentralized, renewable energy systems will take an increasingly larger bite out of present and future power demand on the grid in countries that represent over one-third of the world’s population.

On-grid and off-grid power service offerings will increasingly see convergence as next-generation distributed energy service companies continue to evolve and scale. Because the future grid will

National Grid on Friday released results of the second phase of an extended solar interconnection study that has entangled nearly 1 gigawatt of projects in Massachusetts over the last year, and stymied development for some.

Over 300 megawatts of projects may move forward without additional costs, the utility said, while another 90 megawatts of distributed solar projects will require developers to shoulder some transmission-level investments in order to connect projects to the grid.

Those extra costs range from less than $1 million for a group of five projects up to a maximum of $75 million for another set of 12 projects that total 45.8 megawatts. National Grid estimated the

Whether booming off-grid power demand in emerging markets is met with grid extension or distributed renewables will be central to the growth story of the global clean power sector.

As the technological and financial toolbelt for providing affordable, reliable, appropriate, and clean power to every household and business continues to expand, deployments of off-grid, decentralized, renewable energy systems will take an increasingly larger bite out of present and future power demand on the grid in countries that represent over one-third of the world’s population.

On-grid and off-grid power service offerings will increasingly see convergence as next-generation distributed energy service companies continue to evolve and scale. Because the

National Grid on Friday released results of the second phase of an extended solar interconnection study that has entangled nearly 1 gigawatt of projects in Massachusetts over the last year, and stymied development for some.

Over 300 megawatts of projects may move forward without additional costs, the utility said, while another 90 megawatts of distributed solar projects will require developers to shoulder some transmission-level investments in order to connect projects to the grid.

Those extra costs range from less than $1 million for a group of five projects up to a maximum of $75 million for another set of 12 projects that total 45.8 megawatts. National Grid estimated the

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