Forrest Bagley knew Illinois had everything a solar developer could want: flat land, strong state incentives, and a growing market hungry for clean energy. What he didn’t expect was the wall.
Years into building out a community solar portfolio with his family’s company, Blue Redwood, dozens of his projects are frozen in utility interconnection queues — some for nearly two years. Federal tax credit deadlines are closing in. The bottleneck isn’t land, financing, or public opposition. It’s a process so opaque that most developers can barely see inside it.
Stuck in line: Illinois’ solar interconnection crisis
Illinois’ solar boom didn’t arrive quietly. State clean energy laws passed in 2017 and 2021 triggered a flood of applications for distributed generation projects, overwhelming Ameren Illinois’ interconnection process. As of April, more than 3,000 distributed energy projects are pending in Ameren’s queues, representing over 13 gigawatts of potential power — enough to reshape the state’s energy landscape, if they ever get approved.
The backlog has been compounded by a technical dispute. Many developers were told their projects failed Ameren’s “weighted short-circuit ratio” test — a measure of the distribution grid’s ability to handle electricity pushed back from solar or storage systems. Developers began filing formal challenges, and state regulators ordered Ameren to hold their place in line while the issues worked themselves out. The result: 19 disputes filed in October grew to 123 by mid-March, clogging 41 of the utility’s 68 queues.
For developers like Bagley, the pressure is real. Federal tax credits require projects to either begin construction by this summer or start generating power by the end of 2027. Every month stuck in queue is a month closer to losing that financial lifeline.
What MeanderX actually does
MeanderX was built to make the invisible visible. The platform uses AI to scrape, centralize, and automatically update publicly available utility data on grid hosting capacity and interconnection queues — data that technically exists but has historically required complex coding to access.
The result is an interactive map covering Ameren’s service territory. Feeder lines and substations appear with color-coded indicators — red, yellow, and green — showing queue wait times at different points on the grid. Developers can track the live status of their own projects and watch for movement elsewhere: which projects have dropped out, which have advanced to construction, where disputes are clustering.
Co-founder Robert Huppertz was direct about the shift: “Pre-AI, having to navigate and automatically track the web of hosting-capacity and interconnection-queue datasets available to developers from different utilities would have been incredibly time-consuming and complex. AI has allowed us to centralize and automatically update this data.”
MeanderX launched in Ameren Illinois’ service territory last year and now covers more than 20 investor-owned utilities across eight states, including ConEd in New York, Xcel in Minnesota, and Potomac Edison in Maryland.
From ‘spray and pray’ to targeted siting
Before tools like MeanderX, community solar developers relied on a portfolio approach: propose many sites, then eliminate them one by one as obstacles emerged. Co-founder Jack Angela describes it bluntly as “spray and pray” — expensive and slow.
Granular queue data changes that calculus entirely. If a substation is already saturated or a feeder is tied up in disputes, developers can identify that before committing capital. The platform shows that the south edge of Quincy near the Mississippi River has relatively open queues, while the area around the University of Illinois at Urbana-Champaign is, in Angela’s words, a virtual traffic jam.
“We’re basically identifying fast-moving queues with fresh capacity coming on the system so people can use those signals to develop more targeted siting,” Angela said. The goal is to help developers “de-risk sites earlier” — cutting dead-end locations from the pipeline before real money is on the table.
For Bagley, that signal is exactly what his team needs. “We do a lot of on-the-ground prospecting, so knowing where to point is really helpful,” he said. “You don’t want to spend a bunch of time shaking the sifter to find the little nuggets.”
The limits of the map
Queue visibility is a powerful first step, but it isn’t the whole picture. Even where interconnection looks favorable, developers still face land availability, acquisition costs, local opposition, and environmental constraints that no map can resolve on its own.
Bagley points to land southeast of St. Louis as a case in point. The queues look inviting on MeanderX, but the reality is messier. “You’ve got some NIMBYism, also floodplains and other issues that may be challenging,” he said. “It looks great, but how do you develop a good project that everybody’s excited about, where they’re not going to bring their pitchforks out at the local meeting?”
MeanderX narrows the search; it doesn’t finish it. The tool tells developers where to look — not whether what they find there is actually viable. Physical prospecting and community engagement remain essential, unglamorous parts of the work.
A model for the national grid bottleneck
Illinois may be an extreme case, but it isn’t a unique one. Interconnection delays are slowing renewable energy deployment across the country. At the utility-scale level, companies like Pearl Street Technologies are building software to help developers navigate transmission grid queues. MeanderX is addressing the same problem one layer down — at the distribution grid, where community solar connects.
Ameren Illinois has expressed support for MeanderX’s approach, and the utility’s recently filed 2028–2031 grid plan includes commitments to greater data transparency and information-sharing. Community solar developer Reactivate has gone further, calling for utilities to formally integrate high-transparency tools into their own systems. “Standardizing real-time visibility into grid capacity would help developers submit higher-quality, more viable applications, which ultimately reduces the administrative burden on the utility,” said Jeannette Torres, Reactivate’s marketing and communications manager.
Angela sees Illinois as a preview of what’s coming elsewhere. As solar and storage demand accelerates in distributed generation markets across the country, queue congestion could replicate itself state by state. “There’s going to be other states that experience this clogging up,” he said. Whether utilities adopt tools like MeanderX proactively — or wait for the backlog to become a crisis — may determine how quickly the clean energy transition actually moves.
