About Slackwater

Slackwater is an independent guide to tidal and marine energy. It explains how the
technology works, what it costs, and where it is actually running, in plain language and with the
arguments left in.

What we publish

Explainers and reference pages on tidal stream, tidal range and the wider marine energy
sector. The aim is to be the page that answers the question you arrived with, and then shows you
the next question worth asking.

Where a figure is contested we say so rather than pick the flattering one. Where a criticism
of tidal power is fair, it stays on the page.

What we are not

We are not a manufacturer, a developer or a trade body. We sell nothing, we represent nobody,
and no company has editorial input.

This address previously belonged to Tidal Generation Limited, a British tidal
turbine company later held by Alstom and then GE. Slackwater is a new and entirely unaffiliated
project. We are not that company, we are not its successor, and we hold none of its technology,
staff or obligations. If you are looking for the company or its products, this is not the place.

Why the name

Slack water is the pause between the flood and the ebb, when the current stops before it turns.
It is the only time engineers can safely reach the machines, and it is the quietest part of a
cycle that never actually stops.