• Ian Sutton

An Energy Evaluation System: Part 6

The following is take from the post An Energy Evaluation System: Part 6.


The Net Zero Grid consists of the following sectors.

A — Intermittent Energy Sources B — Continuous Energy Sources C — Energy Storage D — Electrolysis of Water E — Hydrogen and Ammonia F — Carbon Capture and Sequestration G — The Electrical Grid H — Transportation I — Chemicals J — Fossil Fuels K — Biofuels In this post we look at Section B of the grid (highlighted); it covers alternative energy sources that are supplied continuously. They include nuclear power, hydroelectric, geothermal and ocean energy. (Ocean Energy is actually partially continuous. Power is provided only when the tides are flowing or the waves are in motion. However, these events are predictable and occur on a regular basis so they are treated here as being continuous.)

These four energy sources are continuous. Apart from downtime for routine maintenance they are ‘always on’. They provide the baseload that the system needs. Although these power sources are continuous they are not necessarily “dispatchable”, i.e., it may not be possible for them to meet short-term fluctuations in demand. This important distinction applies particularly to nuclear power.