Electric power generation, nuclear · Illinois

Constellation Nuclear Headquarters at Cantera

Warrenville, IL · ~307 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.3
Avg TCR
1.2
Industry avg
0
Fatalities
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The verdict

Constellation Nuclear Headquarters at Cantera runs at 25% of its industry's injury rate - far safer than the typical Electric power generation, nuclear workplace, earning a grade A.

Constellation Nuclear Headquarters at Cantera: 0.3 TCR = 25% of Electric power generation, nuclear BLS 1.2 · 2y Form 300A (see methodology below)

Constellation Nuclear Headquarters at Cantera safety composite

Constellation Nuclear Headquarters at Cantera scores strongest on dart rate (safer than 66% of same-industry peers) and weakest on total case rate (tcr) (safer than 31%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 0.3 per 100 workers

Safer than 31% of industry peers

DART rate
C 0 per 100 workers

Safer than 66% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Constellation Nuclear Headquarters at Cantera held a steady TCR band

Constellation Nuclear Headquarters at Cantera's TCR held near 0.0 from 0.3 in 2023 to 0.3 in 2024. Peak filing year was 2023 at 0.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2023=0.3 · 2024=0.3

OSHA ITA Form 300A scorecard

Establishment book 221113 · Warrenville, IL AT/BELOW-IND · MID

Grade A · TCR 0.3 · 25% of ind

  • DART 0.0 DART
  • RANK #10/12
  • PHOTO Duane Arnold
  • BOOK 2y book
  • INJ 1 inj
  • SIZE ~307 FTE

Nearest TCR peer: Duane Arnold (0.0 TCR gap)

Read with this employer → · Industry book → · Illinois employers → · Look up another →

Constellation Nuclear Headquarters at Cantera in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Constellation Nuclear Headquarters at Cantera averages 0.3 TCR (25% of the Electric power generation, nuclear BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Constellation Nuclear Headquarters at Cantera TCR series: 2023=0.3 · 2024=0.3 · BLS 1.2

Where Constellation Nuclear Headquarters at Cantera falls in its industry

80 Electric power generation, nuc establishments

Safer than 31% of graded establishments in this industry, whose median TCR is 0.2.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #10 safest of 12 Electric power generation, nuc employers in Illinois.

Constellation Nuclear Headquarters at Cantera (307 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 669 employees and a TCR of 0.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 0123 Average employees Total Case Rate Constellation Nuclear Headquarters at Cantera
Constellation Nuclear Headquarters at Cantera (307 employees, TCR 0.3) among 29 same-industry peers, split at the industry median of 669 employees and a TCR of 0.2

Constellation Nuclear Headquarters at Cantera has fewer employees than the Electric power generation, nuclear median and a higher injury rate than the industry's median TCR of 0.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.3 0.0 0 1 0
2023 0.3 0.3 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

221113 · IL · Warrenville

80 Electric power generation, nuclear employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 31 employers in Warrenville, IL · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Duane Arnold 0.3 TCR
NAICS-TCR PSEG POWER - NUCLEAR 0.3 TCR
NAICS-TCR Monticello Nuclear Plant 0.3 TCR
NAICS-TCR Pilgrim Nuclear Power Station 0.3 TCR
STATE-SIZE Chicago Bagcraft Novolex Plant 307 FTE
STATE-SIZE Empire Comfort Systems 307 FTE
STATE-SIZE 71217 307 FTE
STATE-SIZE WM 1596 307 FTE
CITY-NEAR Warrenville - Homebased 377 FTE
CITY-NEAR Little Friends Inc 318 FTE
CITY-NEAR 1903 - Warrenville 263 FTE
CITY-NEAR Exelon Nuclear Headquarters at Cantera 244 FTE
NAT-TCR Samsung 0.3 TCR
NAT-TCR Gilbane Building Company New York 0.3 TCR
NAT-TCR TCCo-IND 0.3 TCR
NAT-TCR TCCo-MI 0.3 TCR
NAT-SIZE W&W-AFCO Steel - Oklahoma City 307 FTE
NAT-SIZE Inteva Products 307 FTE
NAT-SIZE Sheldon Facility 307 FTE
NAT-SIZE Foodservice Dallas - 1011 307 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.