Power-plant climate severity
Inzonex's Climate Exposure Screening Index (CESI): outdoor-exposure scores for 42,094 power-plant records in the published version 1.1.0 dataset.
CESI class distribution
| Class | Screening level | Records |
|---|---|---|
| CES1 | Very low | 6,060 |
| CES2 | Low | 10,839 |
| CES3 | Medium | 13,669 |
| CES4 | High | 7,857 |
| CES5 | Very high | 3,337 |
| CESX | Extreme | 332 |
Frozen dataset published 30 August 2026, version 1.1.0. These counts describe dataset records, not a verified current operating fleet.
Highest-scoring dataset examples
| Plant | Archived country label | Dominant stressor | CESI / 100 |
|---|---|---|---|
| Az Zour South CCGT | Kuwait | marine salt corrosion | 73 |
| Az Zour North | Kuwait | marine salt corrosion | 73 |
| Karan Gas power plant | Saudi Arabia | marine salt corrosion | 72 |
| Tanajib Cogeneration and Desalination power plant | Saudi Arabia | marine salt corrosion | 72 |
| Khursaniyah | Saudi Arabia | marine salt corrosion | 72 |
| Ruwais General Utilities Plant | United Arab Emirates | marine salt corrosion | 71 |
| Ras Abu Fontas A OCGT Cogen Power Plant Qatar | Qatar | marine salt corrosion | 71 |
| Ras Abu Fontas B OCGT Cogen Power Plant Qatar | Qatar | marine salt corrosion | 71 |
| Ras Abu Fontas B-1 OCGT Power Plant Qatar | Qatar | marine salt corrosion | 71 |
| Ras Abu Fontas B-2 OCGT Cogen Power Plant Qatar | Qatar | marine salt corrosion | 71 |
| Al-Nouf Power Plant | United Arab Emirates | marine salt corrosion | 71 |
| Hidd Power and Water station 1 | Bahrain | marine salt corrosion | 71 |
| Al Ezzel Power Station | Bahrain | marine salt corrosion | 71 |
| Sitra Power an Water Station | Bahrain | marine salt corrosion | 71 |
| Alkhobar | Saudi Arabia | marine salt corrosion | 71 |
| BERI (SEC) | Saudi Arabia | marine salt corrosion | 71 |
| Emirates Aluminum Smelter Complex power station | United Arab Emirates | marine salt corrosion | 70 |
| Al Hamra Independent Power Plant | United Arab Emirates | marine salt corrosion | 70 |
| Ras Rakan power plant | Qatar | marine salt corrosion | 70 |
| Taweelah C Independent Power Producer (IPP) | United Arab Emirates | marine salt corrosion | 70 |
Examples are ordered by score, then dataset identifier for ties. Plant links open the corresponding atlas record; scores remain those of the frozen CESI release.
Sources and method
The release combines plant coordinates with WorldClim temperature normals, Köppen–Geiger climate classes and coast-distance estimates from a 0.5° land grid. The published reference implementation documents the fixed weights and thresholds.
Dataset and methodology, version 1.1.0 · Download CSV · Reference implementation · CC BY 4.0.
The former ISO-labelled dataset has been superseded. CESI is a separate heuristic screening index, not an ISO 9223 implementation.
Dataset limitations
Country metadata in version 1.1.0 contains mixed two-letter and three-letter codes, missing codes and disagreements between codes and country labels. Country coverage and country-level comparisons require reconciliation; the published country total is not reproduced here. The tables retain the release's class counts and explicitly identify archived country labels.
Frequently asked questions
What does CESI measure?
CESI combines climate normals, climate classification and distance to coast into an outdoor-exposure screening score from 0 to 100. CES1 to CESX are Inzonex screening classes, not measured corrosion rates.
Is CESI an ISO 9223 classification?
No. ISO 9223 covers atmospheric corrosivity classification, determination and estimation. CESI does not implement that standard. Its classes must not be used as ISO corrosivity categories or for site-specific materials selection.
Is climate severity an emissions metric?
No. This dataset screens outdoor climate exposure. It does not measure emissions, equipment condition, corrosion damage or operating temperature.
How should the score be used?
Use it to compare climate-exposure context across a fleet and identify sites for further review. The weights and thresholds are heuristic. A single-site plausibility check is not a validation study; site measurements and engineering assessment remain necessary.