The invention describes a power cell (1) for deepwater application comprising an power cell housing (2), a capacitor bank (3), an electronic module (4), and input/output connectors (5,6), wherein the power cell housing (2) is essentially made of an insulat...

A method for providing auxiliary electrical power to an underwater well installation, the installation being linked to a surface location via an umbilical cable (1), to supplement any electrical power received at the installation from the umbilical cable, ...