Illinois’ Coal to Solar effort is best assessed as a partial implementation of a larger energy transition policy, not as a finished model for replacing coal-era economic activity. Created under the 2021 Climate and Equitable Jobs Act, signed on September 15, 2021, the program tied renewable procurement and storage grants to former or closing coal-fired power plant sites. By mid-2026, the evidence showed meaningful construction activity and new clean generation at some locations, but also canceled or incomplete projects, limited battery deployment, and local fiscal gains that remained smaller than the coal plants they followed.
The program’s local importance comes from where it was aimed. Retired coal plants often left behind grid interconnection points, industrial land, displaced workers, and host governments that had relied on plant-related tax revenue. Reusing these sites for solar and storage could reduce some transition costs, but the reported results through August 2026 suggest that site reuse alone did not guarantee full project delivery or equivalent community replacement benefits.
Coal to Solar Program Design
Coal to Solar Site Selection
The state announced in June 2022 that five coal plant sites, either closed or in the process of closing, had been selected for grants to install energy storage facilities, with operations originally planned for 2025, according to the official state announcement. The grants were part of a broader policy package intended to move Illinois away from coal-fired power while supporting clean energy development near communities already tied to the electric system.
The scale was significant for a state-administered redevelopment program. Illinois allocated $280.5 million over 10 years, with annual funding capped at about $28.05 million. Funding amounts were tied to megawatts of stored capacity. State materials said the initiative aimed to deliver up to 255 megawatts of energy storage capacity, described as enough at peak to power about 258,000 Illinois homes based on average annual use in the state release.
Storage Targets And Grant Structure
The central policy design choice was to connect public incentives to storage capacity at former coal sites. That choice reflected a practical grid issue: solar generation can add clean electricity, but storage can shift some output across hours and may provide local reliability value if projects are connected and operated in ways that grid operators can use. The research record does not provide operational performance data for the batteries, so any claim about reliability gains should be treated as unproven at this stage.
One uncertainty in the record is worth stating directly. The official 2022 program announcement described five selected coal plant sites, while the mid-2026 status information referenced six proposed solar-plus-small-storage projects. The available research notes do not reconcile that difference. For policy evaluation, this matters because site count, project count, and technology type can lead to different conclusions about whether the program underperformed because of procurement design, individual site conditions, or broader market pressures.
Local Economic Results By Mid-2026
Completed Projects And Work Hours
By August 2026, three of the six proposed solar and small storage projects had been completed, while none of the proposed stand-alone battery storage projects had been built. Completed projects were at the Baldwin, Coffeen, and Newton plant sites. Together, those facilities totaled 164 megawatts of solar capacity and 6 megawatts of co-located battery storage. That means the built portfolio leaned heavily toward solar generation rather than the larger storage outcome emphasized in the original grant design.
The labor effect was real but smaller than the early projection. The completed projects generated about 423,000 hours of skilled trades work. The research notes state that this was about one-third of what the original project developer, Vistra, had projected, because fewer projects were completed. That gap is central to any local impact assessment: communities received construction employment, but the realized work did not match the full policy expectation.
| Measure | Reported Result By August 2026 | Policy Reading |
|---|---|---|
| Completed solar plus small storage projects | Three of six | Partial delivery, not full buildout |
| Stand-alone battery projects | None built | Storage goal lagged most clearly |
| Built capacity at Baldwin, Coffeen, and Newton | 164 MW solar and 6 MW co-located storage | Solar advanced faster than storage |
| Skilled trades work | About 423,000 hours | Material employment, below projection |
Tax Revenues And County-Level Effects
Property tax effects were mixed. Host counties, including Randolph, Montgomery, and Jasper, saw increased tax revenues from completed projects. The same research record states that these revenues were substantially lower than what retired coal plants had historically contributed. This is consistent with a basic fiscal issue in energy transition: solar projects can add taxable value, but they may not replace the tax base of large thermal power plants with extensive equipment, buildings, and payroll-linked local activity.
The Coffeen project shows why local results can be meaningful without fully resolving the replacement problem. It was operational in 2024 and involved a reported $110 million investment. The local analysis cited in the research notes associated it with 66 full-time-equivalent local jobs, including direct, indirect, and induced effects; about $4.9 million in worker earnings; about a $7.4 million increase in the county economy; and an estimated 57 percent increase in local property tax receipts compared with land value. Those figures point to measurable gains, but they describe one site and should not be treated as statewide proof that every former coal community will see similar returns.
Why Project Delivery Fell Short
Fixed Incentives And Cost Pressures
The August 5, 2026 report by Prairie Rivers Network and the Climate Jobs Institute identified fixed incentive structures as a major reason the program fell short of its own goals. In particular, the research notes highlight a fixed $30 renewable energy credit price set in 2021. That price did not adjust for inflation, supply chain disruptions, or rising financing costs. The reported result was that multiple projects were canceled, including half of the solar projects and all battery-only projects.
This evidence points to a policy design trade-off. Fixed prices can give developers, regulators, and communities a clear benchmark. They can also become misaligned when costs change faster than expected. The available data support the narrower conclusion that the program’s incentive structure did not keep enough projects financially viable under the conditions that followed. They do not prove that a fully flexible price structure would have delivered all projects, because the research notes do not isolate incentive design from interconnection, permitting, site conditions, or developer-specific financing decisions.
Storage Versus Solar Outcomes
The difference between completed solar capacity and unbuilt stand-alone storage is important for grid planning. Solar capacity adds generation, but batteries can support resource adequacy only if they are built, interconnected, and available during system need. With only 6 megawatts of co-located storage completed at the three finished sites, the program’s storage performance by August 2026 was far below the stated ambition of up to 255 megawatts.
That does not mean the completed projects lacked value. Reusing coal sites for solar can preserve some energy-sector activity and may make use of existing grid-related infrastructure. The caution is that the evidence supports a limited finding: the completed projects contributed clean generation and some local economic activity, while the larger storage promise remained mostly unrealized. Readers comparing this case with broader reliability planning may find related analysis of Illinois grid planning and storage useful, especially where policy goals depend on resources that have not yet been built.
Community Trade-Offs In Former Coal Towns
What The Evidence Supports
The local economic record is strongest on near-term construction work, site-specific investment, and property tax changes. It is weaker on long-term employment, household income replacement, and grid reliability benefits, because the research notes do not provide multi-year operating data for the completed projects or performance data for battery systems. That distinction matters. A construction project can deliver a short burst of skilled trades work while leaving fewer permanent jobs than the coal facility it replaced.
Former coal communities also face a timing problem. Plant retirements can reduce local tax bases before replacement projects are completed. If grant-supported projects are canceled or delayed, local governments may experience a longer fiscal gap. In the Illinois case, completed projects improved tax receipts in host counties, but the research record states those receipts were well below historic coal plant contributions. For community planning, that finding argues for caution about treating clean energy redevelopment as a one-for-one fiscal substitute.
For readers interested in related community impacts, SGTT is a part of the same network and provides additional insights into similar issues faced by neighboring towns. The Illinois experience highlights why it’s crucial to evaluate actual project completions to substantiate community benefit claims.
Coal to Solar Local Impact Assessment
Measured Gains And Remaining Gaps
The most cautious assessment of Coal to Solar is that it produced measurable but incomplete results. By August 2026, Illinois had clean generation operating at Baldwin, Coffeen, and Newton, a reported 423,000 hours of skilled trades work, and increased property tax revenues in several host counties. Coffeen’s reported investment and local economic effects show that former coal sites can attract new capital after plant retirement.
The limits are just as clear. Only three of six proposed solar-plus-small-storage projects had been completed, no stand-alone battery storage projects had been built, and realized job hours were about one-third of the original projection. The program’s fixed incentive design, especially the $30 REC price set in 2021, was identified in the research record as poorly matched to later inflation, supply chain pressure, and financing costs. Based on the available evidence, Illinois’ experience supports a practical lesson: redevelopment programs for former coal sites need policy stability, but they also need mechanisms that can respond to cost changes before cancellations erase expected community and grid benefits.