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Home Science & Environment Climate Change

This DOE-backed software is helping to unclog the grid

November 12, 2024
in Climate Change
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This DOE-backed software is helping to unclog the grid
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Brian Fitzsimons, CEO of GridUnity, doesnâ€t think his company alone can solve the grid interconnection backlog thatâ€s holding back the U.S. energy transition. But heâ€s sure that its software is a lot better than the combination of paper, spreadsheets, and email that most grid operators use right now.

In fact, he claims his firmâ€s software can shave about a year or more from the average time new energy projects spend waiting in line to connect to the grid. Right now, the hundreds of gigawatts of clean energy projects seeking to plug into the grid can face wait times as high as three years.

Last month, GridUnity received a $49.5 million grant from the U.S. Department of Energy to put these claims to the test. That money will help fund the rollout of the firmâ€s Interconnection Life Cycle Management software with utilities and grid operators in Arkansas, California, Connecticut, Indiana, Massachusetts, Minnesota, New Jersey, and Ohio.

Thatâ€s a big expansion from GridUnityâ€s current roster of utilities and independent system operators (ISOs) — the entities that manage transmission grids and energy markets for about two-thirds of the U.S. population.

Utilities such as Entergy, Hawaiian Electric, Pacific Gas & Electric, and Southern California Edison are already using Grid Unityâ€s software to increase the speed and efficiency of connecting solar, wind, and battery systems to their grids. Its customer list also includes two ISOs, Midcontinent Independent System Operator and Southwest Power Pool, which collectively manage transmission grids and energy markets across dozens of states in the U.S. Midwest — and which both have years-long interconnection backlogs.

According to Lawrence Berkeley National Laboratoryâ€s 2024 Queued Up report, these wait times have made it such that a typical project took nearly five years from application to completion in 2023, up from three years as of 2015.

Though construction delays and supply-chain bottlenecks also slow things down, the main reason the interconnection queue is jammed up is that it takes a long time to figure out if the grid can handle new energy sources — and how to upgrade it if it canâ€t.

At a time when demand for electricity is booming, the ​“combination of spreadsheets, databases, workflow tools, and emails†that ISOs and utilities are using today just canâ€t handle the complexity of the necessary tasks, Fitzsimons said. Techniques meant to handle scores of projects per year arenâ€t able to keep up with the hundreds of projects grid operators now face.

To solve this problem, GridUnity ​“drives standardization across all parties,†he said — ​“not only standardization of process, but standardization of data structures, standardization of communications, standardization in the cost-estimation and cost-allocation process.â€

Speeding and streamlining these processes — without sacrificing the accuracy and rigor required when dealing with gigawatts of electricity flowing across transmission grids — could be the most important near-term step that utilities and grid operators can take to alleviate wait times.

Thatâ€s crucial: These backlogs have become one of the biggest barriers to the construction of new cheap, clean energy — and, therefore, the phasing out of expensive, polluting fossil fuels.

What can software do? 

Software that helps utilities and grid operators streamline grid interconnection hasnâ€t taken off as quickly as, say, software to streamline financial services or customer relationship management. But the complexity of the work involved has made it a must for the energy sector, Fitzsimons said.

GridUnity isnâ€t the only software developer taking on these complexities. Grid-control software providers like Siemens, GE, Schneider Electric, and Hitachi are adding more features to their platforms to help utilities manage increasingly complex interconnection challenges. Big software conglomerates such as Oracle and SAS offer a wide array of utility software capabilities. And startups such as Neara, Nira Energy, and Pearl Street Technologies are providing interconnection-analysis and -assistance software to energy project developers, utilities, and grid operators.

“This class of automation platforms is getting good reviews thus far from grid planners and interconnection customers,†said Rob Gramlich, president of consultancy Grid Strategies and an expert on transmission-grid policy. ​“Automation is an especially helpful thing when human resources are scarce, as they are right now with interconnection engineers.â€

In many cases, multiple software platforms are working together, Fitzsimons said. He gave the example of GridUnity porting data into the Pearl Street power-flow modeling software being used by MISO and SPP.

To be clear, streamlining interconnection isnâ€t the only thing that needs to happen to unclog U.S. interconnection queues, Gramlich said. Importantly, it doesnâ€t address the underlying problem causing interconnection backlogs — the transmission grid isnâ€t growing fast enough to handle all the new clean energy resources seeking to connect to it.

In a landmark Federal Energy Regulatory Commission order issued this year, the agency mandated long-term planning to grow the grid — but that will take years to lead to major on-the-ground changes. Grid operators need to move more quickly on ​“proactive planning to prepare zones of the grid to quickly integrate new requests,†Gramlich said.

Software canâ€t build power lines — but it can help grid operators, utilities, and energy-project developers share data, streamline work processes, discover where information is missing or incorrect, and otherwise help smooth the way to completing vital steps on the way to interconnection.

How CAISO is using GridUnity to unsnarl its interconnection process 

Thanks to another recent landmark ruling by FERC, speeding up the interconnection queue is not only a climate imperative but a federal requirement.

Complying with that rule, called FERC Order 2023, is what led the California Independent System Operator (CAISO) to restructure its interconnection process using GridUnityâ€s tools. The FERC rule mandates a sprawling range of interconnection reforms, and last month CAISO announced that FERC had approved the reforms it proposed to bring itself into compliance with the order.

CAISO and GridUnity were then able to move from launch to completion of their software deployment in about five months, Fitzsimons said.

The new system is a big and welcome change from how CAISO has historically managed its interconnection process, said Deb Le Vine, the grid operatorâ€s director of infrastructure contracts and management.

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