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Tough Summer for the Power Grid. But the Microgrids are Working

The Ameren microgrid. S&C Electric

microgridknowledge.com - by Elisa Wood - August 2, 2019

Severe heat and storms across the US this summer have strained the electric grid and caused extensive power outages. But the microgrids are working.

Consider the following examples . . .

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How a ‘Solar Battery’ Could Bring Electricity to Rural Areas

           

New solar flow battery with a 14.1 percent efficiency. Photo: David Tenenbaum, UW-Madison

CLICK HERE - STUDY - Chem - 14.1% Efficient Monolithically Integrated Solar Flow Battery

theverge.com - by Angela Chen - September 27, 2018

Solar energy is becoming more and more popular as prices drop, yet a home powered by the Sun isn’t free from the grid because solar panels don’t store energy for later. Now, researchers have refined a device that can both harvest and store solar energy, and they hope it will one day bring electricity to rural and underdeveloped areas.

The problem of energy storage has led to many creative solutions, like giant batteries. For a paper published today in the journal Chem, scientists trying to improve the solar cells themselves developed an integrated battery that works in three different ways.

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Electric Scooters’ Sudden Invasion of American Cities, Explained

           

Turns out there’s a lot of latent demand for a quick and cheap way to get around.

vox.com - by Umair Irfan - August 27, 2018

 . . . Amid the feverish passion for and against scooters, there’s a larger reckoning taking place about rapid changes to our cities and public spaces. The scooters are forcing conversations about who is entitled to use sidewalks, streets, and curbs, and who should pay for their upkeep.

They’re also exposing transit deserts, showing who is and isn’t adequately served by the status quo, and even by newer options like bike share. That people have taken so readily to scooters shows just how much latent demand there is for a quick and cheap way to get around cities.

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How Storms, Missteps and an Ailing Grid Left Puerto Rico in the Dark

           

A transmission tower and downed lines in the mountainous terrain of eastern Puerto Rico. Workers from the island and throughout the United States have worked to restore power after Hurricanes Irma and Maria last September.

It took months to restore electricity in Puerto Rico after hurricanes dealt a one-two punch. Many homes are still without power, and the system’s future is far from certain.

nytimes.com - by JAMES GLANZ and FRANCES ROBLES - Photographs by TODD HEISLER - May 6, 2018

 . . . After Maria and the hurricane that preceded it, called Irma, Puerto Rico all but slipped from the modern era . . .

 . . . an examination of the power grid’s reconstruction — based on a review of hundreds of documents and interviews with dozens of public officials, utility experts and citizens across the island — shows how a series of decisions by federal and Puerto Rican authorities together sent the effort reeling on a course that would take months to correct. The human and economic damage wrought by all that time without power may be irreparable.

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Microgrids as Resilient Energy Infrastructure

           

Microgrid at Princeton University

utilitydive.com - March 20, 2018

The National Academy of Sciences defines “resilience” as the ability to prepare and plan for, absorb, recover from, and more successfully adapt to adverse events.  Since the September 2017 DOE NOPR to FERC, the energy industry has been working overtime to better define resilience.  FERC unanimously set aside the “90 days on-site fuel storage” provision espoused by DOE and opened a new docket (AD18-7) to more fully examine the current state of grid resiliency, asking the nation’s seven RTO’s and ISO’s to provide their definition of resiliency relative to the bulk power system by March 9.  Those ISO/RTO comments reflected regional variances as expected while sharing a common thread of the paradigm shift underway from central station power plants to more distributed generation . . . 

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Puerto Rico Energy Commission Opens Docket on Microgrids and Distributed Generation

Puerto Rico Gov. Ricardo Rosselló Nevares testifying on Capitol Hill this week.

microgridknowledge.com - by Elisa Wood - November 17, 2017

Puerto Rico’s energy commission has opened a docket to investigate ways to encourage microgrids and distributed generation to build an energy system with more fortitude against hurricanes.

Island officials described the docket this week in testimony before the U.S. Senate Committee on Energy and Natural Resources. Half of the island’s population remains without power two months after Hurricane Maria’s strike.

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Utilities companies won't let you sell your own solar power. Why not?

The electric utility sector is broken – but the transformation we need will be virtually impossible so long as a handful of wealthy elites are calling the shots

           

Utilities companies have their sights on ending net-metering: your ability to sell excess power at market rates. Photograph: Rex

CLICK HERE - REPORT - Energy and Policy Institute - Utilities Knew: Documenting Electric Utilities’ Early Knowledge and Ongoing Deception on Climate Change From 1968-2017

theguardian.com - by Kate Aronoff - August 1, 2017

A new report from the US-based Energy and Policy Institute last week found that investor-owned utilities have known about climate change for nearly 50 years – and done everything in their power to stop governments from doing anything about it.

From their commitment to toxic fuels to their corrosive influence on our democracy to their attempts to price-gouge ratepayers, it’s long past time to bring the reign of privately-owned electric utilities to an end.

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More Than 30 States Embrace Grid Modernization, New Policy Tracker Finds

           

CLICK HERE - 50 States of Grid Modernization (60 page .PDF report)

CLICK HERE - 50 States of Solar (11 page .PDF report)

A new quarterly report from the folks who brought you '50 States of Solar' aims to chronicle grid modernization initiatives across the US

utilitydive.com - by Herman K. Trabish - May 31, 2017

Grid modernization is a hot topic in the power sector as utilities across the country replace aging infrastructure and upgrade their systems for new energy technologies.

But until now, there was no easily-accessible tool to track the myriad regulatory actions on advanced metering, non-wire alternatives, ratemaking reform and the like.

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Are Solar and Wind Really Killing Coal, Nuclear and Grid Reliability?

           

Lessons from the Lone Star State: A surge in wind power on the Texas grid didn’t cause reliability problems (and brought down electricity prices) because regulators improved the efficiency of wholesale electricity markets. Sarah Fields Photography/Shutterstock.com

theconversation.com - by Joshua D. Rhodes, Michael E. Webber, Thomas Deetjen and Todd Davidson - May 11, 2017

U.S. Secretary of Energy Rick Perry in April requested a study to assess the effect of renewable energy policies on nuclear and coal-fired power plants.

Some energy analysts responded with confusion, as the subject has been extensively studied by grid operators and the Department of Energy’s own national labs. Others were more critical, saying the intent of the review is to favor the use of nuclear and coal over renewable sources.

So, are wind and solar killing coal and nuclear? Yes, but not by themselves and not for the reasons most people think. Are wind and solar killing grid reliability? No, not where the grid’s technology and regulations have been modernized. In those places, overall grid operation has improved, not worsened.

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Solar Experiment Lets Neighbors Trade Energy Among Themselves

           

Patrick Schnell, a participant in the Brooklyn Microgrid, with solar panels on his roof in Gowanus.
Credit Kevin Hagen for The New York Times

nytimes.com - by Diane Cardwell - March 13, 2017

 . . . In a promising experiment in an affluent swath of the borough, dozens of solar-panel arrays spread across rowhouse rooftops are wired into a growing network. Called the Brooklyn Microgrid, the project is signing up residents and businesses to a virtual trading platform that will allow solar-energy producers to sell excess-electricity credits from their systems to buyers in the group, who may live as close as next door.

The project is still in its early stages — it has just 50 participants thus far — but its implications could be far reaching.

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