News Articles by Mark Howitt

This report analyses the emissions benefits (avoided emissions) of Storelectric’s Green CAES ™ and CCGT CAES plants. For CCGT CAES, a methane-fired version is considered; if hydrogen-fired, then the figures for TES CAES apply approximately. For ease of scaling, the...

 Hydrogen is an essential part of the Net Zero economy, so we support funding for developing its technologies. However it is not a panacea for everything; in particular its scope does not include balancing renewable generation or the electricity grid - see The Future...

Summary of Findings The National Grid Future Energy Scenarios 2021 (NG’s FES 2021) is a small step forward on their 2020 document. It contains broader, for example considering aviation, shipping and railways (albeit only in terms of emissions, not energy consumption)....

Where Grid Regulation Went Wrong The Smart Systems and Flexibility Plan is the UK government's and Ofgem's proposal to achieve Net Zero emissions in the energy system. Most of the other current BEIS consultations are detailed looks into elements of this plan. Our...

This is Storelectric’s abridged response to the call for evidence on facilitating the deployment of large-scale and long-duration electricity storage. This call seeks to identify the blockers to deploying large-scale long-duration electricity storage, and the best...

Excessive Costs of the Current System National Grid’s (NG’s) Network Options Analysis 2021 proposed ~£16bn grid reinforcement to accommodate ~17GW new offshore wind by 2025, almost £1bn/GW. This ignored that NG would also have to source balancing and stability...

Offshore Energy Networks The subject here is how to regulate OFTOs (cables owned by Offshore Transmission Owners) so that (for example) they can be linked together into offshore grids and/or interconnectors, or how other farms/plants can be connected to existing...

Throughout the energy transition, technology after technology has been lauded as "the big thing" of the energy transition, "the solution" to the challenges involved – in effect, a magic wand. The energy transition cannot be achieved by an over-emphasis on some...

One of the biggest challenges facing those who wish to invest in, or otherwise work with, energy storage is how to compare the costs and performance of different technologies. Many (e.g. batteries) carefully select their data points to flatter both their capabilities...

While this article is written from the viewpoint of the United Kingdom, all its content would apply equally to most other countries or trading blocs such as the European Union. Current Situation Currently clean energy is incentivised by an uncoordinated mish-mash of...

Batteries – Expensive and Inadequate Solutions Enabling an Affordable, Reliable and Resilient Energy Transition Grid connected batteries are being used for many grid services that would be much better and more cheaply delivered by large-scale long-duration storage,...

Three Perfect Storms?  Three severe winter storms swept across America in the period February 10-20, 2021. While causing many problems across the country, in Texas they caused widespread blackouts, affecting almost the entire population in rolling brown-outs and total...

Current Calculations Currently each country and grid calculates its need for storage in very complicated manner, by creating a model with various scenarios, projecting different generation mixes all based on huge assumptions as to what will be rolled out in future....

The UK government and grid are planning £16bn grid upgrades as part of wider developments to accommodate an additional 17GW of new offshore wind (to 35GW intermittent renewable generation) by the mid 2030s. This is to accommodate the peaks of intermittent generation...

Storelectric has identified a number of critical challenges for the energy transition, and their solutions. These are discussed below. Intermittency Most renewables generate electricity intermittency, i.e. when it wants to. This applies to wind, solar, tidal and wave...

Interconnectors in Europe The United Kingdom no longer has enough domestically generated electricity for its own peak needs, and relies on imports through interconnectors. As the grid decarbonises, power stations are closing, increasing the country's reliance on...

The Challenge Net Zero grids have very low levels of dispatchable (i.e. on-demand) generation – largely hydro-electric, nuclear, gas-fired power stations with CCS (Carbon Capture and Storage), and biomass power stations. The bulk of their energy derives from...

Since privatisation, the only major capital investment into infrastructure-scale plant and equipment that was not planned before privatisation has been undertaken under special financial instruments (ROCs, OFTOs, CATOs, CfDs, CM etc.) that guarantee 15+ year...

Vehicle to Grid (V2G) and Shared Mobility are two of the big buzz-phrases rolled out in the transportation sector, as magical solutions to energy storage needs of the grid (V2G) and to all the woes of transport-related climate change. They have both advantages and...

I was recently asked: do renewable power plants impact the environment? Quite obviously the questioner was seeking to justify pursuing the fossil-fuelled status quo by nit-picking faults in the case for clean energy. This led me to reflect on some environmental...

Alternatives to CAES for provision of arbitrage, balancing, ancillary, stability and other services come from power stations, pumped hydro-electric stations, batteries, Demand Side Response (DSR), interconnectors and ignorance. Power Stations Power stations are being...

Hydrogen will play a significant role in zero-carbon economies in the future. It can be stored at large scale, especially in salt caverns which can be formed in much of the world; It can be stored at ultra-high pressure – vehicle makers are considering up to 700bar:...

Storelectric’s CAES plants are usually designed as stand-alone plants with stand-alone profits based on buying electricity from the grid and selling it back to the grid. There are many up-side revenue streams available, such as buying and selling under PPAs (Private...

Grid-scale electricity storage using an innovative form of Compressed Air Energy Storage When discussing adiabatic CAES, such as that proposed by Storelectric, it is frequently confused with isothermal CAES such as that proposed by Lightsail, SustainX and General...

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...

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 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 200GW...

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 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...

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...

What would such a system look like? A de-carbonised energy system would be built up of many diverse elements selected to be the most suitable mix for each location. There is no single answer or “magic bullet”, no “winning technology” for powering the world, or even...

I was recently asked: do I truly care about climate change or not, and why? Yes, I care – enough to forego 4 years’ earnings (out of 6.5 years working at this job) and still be earning less than I would in another job, as well as working long hours. I do it because,...

100% renewable energy is a target for the energy systems by 2040, though if it can be achieved by 2030 (which I doubt), then so much the better. It’s important for energy to go to zero because it’s possible without additional costs in the overall system, if done...

Introduction This analysis is re-written in fundamental ways as compared with the 2017 analysis, because the Future Energy Scenarios have changed markedly, and largely for the better. Two of the scenarios are legally compliant to the Climate Change Act 2008, offering...

There are, by my analysis, 5 scales of storage. Rising in factors of 10 in both scale and duration, they are domestic, local, area, regional and national. Just as the road network (and many other things) needs all scales to operate, so does the energy storage...

Everyone should seek to transform their electricity system to a renewable one, in every region of the world, but not unthinkingly - otherwise the consequent blackouts and price increases would blacken the name of renewable energy. There are a number of steps,...