# Aluminium and Transformers and power electronics

Their prices have moved together.

Source page: https://www.materialinsights.org/links/aluminium-and-transformers-and-power-electronics/

[Aluminium](https://www.materialinsights.org/commodities/aluminum/) (commodity) and [Transformers and power electronics](https://www.materialinsights.org/energy/e_power_electronics/) (energy): 1 relationship.

## How they are linked

### 1. Price link: windings

*Cost and price · Moderate · Both ways*

Aluminium replaces copper in many distribution transformer windings when the price gap widens, as it is cheaper but bulkier. Yearly moves correlate at 0.41, while monthly moves correlate at only 0.10, showing a slow and partial pass-through.

- **0.10** monthly change correlation
- **0.41** 12-month change correlation
- **0.57** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.