What is a Gas Holder?

A gas holder, also known as a gasometer, is a large, cylindrical storage tank used to hold gas, typically natural gas or biogas, at low pressure. It consists of a movable cylindrical element that rises and falls to accommodate changes in gas volume, maintaining a consistent pressure. Gas holders are essential for balancing supply and demand in gas distribution systems, and they help to regulate pressure within the network. Historically, they were commonly used in gas production and distribution, particularly for town gas, but many have been decommissioned or repurposed in modern systems.