Copper and Generators and alternators

Generators and alternators needs copper; their prices have moved together.

Copper (commodity) and Generators and alternators (energy): 2 relationships.

How they are linked

1. Material need

Physical flow · Direct · Copper → Generators and alternators

Building or running Generators and alternators needs copper.

2. Price link: windings

Cost and price · Weak · Both ways

Copper windings are a large share of material cost. The link hardly shows: both monthly and yearly correlations are close to zero, since the index moves smoothly while copper swings, and makers use surcharges and hedges rather than changing list prices.

• -0.01 monthly change correlation
• -0.07 12-month change correlation
• 0.41 fitted elasticity

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