# Combined heat and power and Internal combustion engines and gensets

Energy flows from internal combustion engines and gensets to combined heat and power; their prices have moved together.

Source page: https://www.materialinsights.org/links/combined-heat-and-power-and-internal-combustion-engines-and-gensets/

[Combined heat and power](https://www.materialinsights.org/energy/e_chp/) (energy) and [Internal combustion engines and gensets](https://www.materialinsights.org/energy/e_engines/) (energy): 2 relationships.

## How they are linked

### 1. Energy flow

*Physical flow · Direct · Internal combustion engines and gensets → Combined heat and power*

Gas engines supply heat and power in CHP plants.

### 2. Price link: prime mover

*Cost and price · Weak · Both ways*

Smaller CHP units use gas engines, larger ones gas turbines. Yearly moves correlate at 0.21 with the engine index, a weak link because the two indices cover different machines and different buyers.

- **0.06** monthly change correlation
- **0.21** 12-month change correlation
- **1.03** fitted elasticity

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