# HVDC links and Polyethylene (LDPE, LLDPE)

Their prices have moved together.

Source page: https://www.materialinsights.org/links/hvdc-links-and-polyethylene-ldpe-lldpe/

[HVDC links](https://www.materialinsights.org/energy/e_hvdc/) (energy) and [Polyethylene (LDPE, LLDPE)](https://www.materialinsights.org/chemicals/polyethylene/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: cable insulation

*Cost and price · Moderate · Both ways*

Modern HVDC cables use cross-linked polyethylene insulation, which is replacing oil-impregnated paper. The resin is a modest share of cost, and monthly moves correlate at 0.28 with the plastics proxy, rising only to 0.42 for yearly moves.

- **0.28** monthly change correlation
- **0.42** 12-month change correlation
- **1.41** fitted elasticity

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