A 21st Century Electricity System

A 21st Century Electricity System

Introduction The current regulatory and contractual framework is designed around a 20th century industry (baseload coal and nuclear, dispatchable gas, all other bits are add-ons). The cost of electricity is diverging increasingly from its price: already around half of...
De-Bunking Fictions Citing Germany

De-Bunking Fictions Citing Germany

There have been a number of reports claiming that the German experience proves that what’s needed on the system is not baseload (described as “poison”) or storage, but lots of flexibility. A rational analysis of these articles finds numerous contradictions and errors....
The Scale of Need for Storage

The Scale of Need for Storage

The Energy Transition The energy transition to a zero-carbon economy is, quite correctly, seeing widespread roll-out of tens of GW of renewable generation. we’re already at over 30GW and, because of load factors, to supply our 56GW peak demand will need over...
CAES or Batteries?

CAES or Batteries?

CAES or Batteries? Many people have suggested that batteries are a viable way forward for grid-scale electricity storage, and some have cast doubt on whether there is a role for Compressed Air Energy Storage (CAES). However CAES, batteries and the other storage...
Conventional Versus Renewable Energy

Conventional Versus Renewable Energy

Conventional Energy There are two main disadvantages with conventional energy: pollution and concentration. Pollution is in many forms throughout the process. The worst and most enduring is emissions-related climate change, well proven and fully discussed. But...
Changing Business Models for Utilities

Changing Business Models for Utilities

This article considers the question: as renewables become adopted more, how will that change the utility companies’ business models? The answer is: it depends which utility companies: those involved in generation, transmission / distribution, or retail? And note that...