Producer Price Index for electrical transformers, updated monthly.
Paste straight into Excel, Google Sheets or an email. Spreadsheet format lands as two columns.
| Month | Value | Change m/m |
|---|---|---|
| Sep 2026 | +0.0% | |
| Aug 2026 | +0.0% | |
| Jul 2026 | +4.0% | |
| Jun 2026 | +0.0% | |
| May 2026 | +0.5% | |
| Apr 2026 | −0.4% | |
| Mar 2026 | +0.0% | |
| Feb 2026 | +0.0% | |
| Jan 2026 | +0.0% | |
| Dec 2025 | +0.0% | |
| Nov 2025 | −0.6% | |
| Oct 2025 | +4.0% | |
| Sep 2025 | +0.0% |
Same numbers as the chart, straight from BLS. Dates are the first of each period, the way BLS reports them.
Transformers rose 7.8% over the last 12 months, but all of its main inputs rose faster: cold rolled steel sheet and strip +36.9%, copper wire and cable +30.8%. That cost pressure may still pass through to prices.
Electrical equipment and appliancesElectrical equipmentElectrical equipment mfg
A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.
The [affected portion] of the Contract Price shall be adjusted using US PPI — Power, Distribution, and Specialty Transformer Manufacturing (BLS series PCU335311335311), published by BLS. Base Period: the index value published for September 2026 (or the month of contract signing, if different) is the Base Value. Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value. Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement. [Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]
One of the strongest indexed components in data-center, transmission, and substation contracts, a real manufactured product with a live monthly survey.
Split the contract by what is being built: towers, fiber, data centers, or core network equipment. Towers, fiber and data centers have no single official price index for the finished project, so use a weighted composite of real cost inputs. Data centers have the best coverage: transformers (PCU335311335311) and switchgear (PCU335313335313) both have real, live BLS indices.
Split the contract by asset type: solar, wind, transmission, substations, or water. Transformers (PCU335311335311) and switchgear (PCU335313335313) have real, live BLS price indices. Solar, wind, and power line construction do not, so those need a weighted input composite instead.
Escalake tracks US PPI — Power, Distribution, and Specialty Transformer Manufacturing, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.