EirGrid

Demand Side Unit Testing

Discover how Demand Side Unit testing works, including signal lists and grid code compliance.

What is a Demand Side Unit?

A Demand Side Unit (DSU) is a user of electricity that EirGrid can instruct to reduce electricity demand. Individual demand sites are typically medium-to-large industrial premises. When a DSU consists of more than one individual demand site, it is called an aggregated DSU.

DSU Testing

A DSU must demonstrate Grid Code compliance before they become commercially operational. This is done through a number of Grid Code tests witnessed by EirGrid. We may also require testing for ongoing Grid Code performance monitoring when the unit is operational.

DSUs must submit a suitable load profile request form before carrying out Grid Code testing scheduled with us.

Load Profile Request Form

Signal lists

Eirgrid issues signal lists for each DSU. These templates include a list of information the DSU must provide for EirGrid to develop a site-specific signal list.

Grid Code Compliance Testing