The Anonymous Widower

UK Govt Awards Almost GBP 33m To Innovative Energy Storage Projects

The title of this post is the same as that of this article on Renewables Now.

This is the first paragraph.

The UK government has awarded GBP 32.9 million (USD 39.7m/EUR 38.3m) in funding to five innovative energy storage projects under the second phase of its Longer Duration Energy Storage competition.

These are the projects.


StorTera has secured GBP 5.02 million to create a prototype demonstrator of its single liquid flow battery (SLIQ) technology.

The company’s main product is the SLIQ Flow Battery, for which it gives the headline of Reliable, Economical Energy For 20 Years.

This is a description of the technology.

The revolutionary StorTera SLIQ single liquid flow battery offers a low cost, high performance energy storage system made with durable components and supported by our flexible and adaptable inverter and control system. The StorTera SLIQ battery brings the following benefits/advantages:

  • Low levelised cost of storage and capital cost
  • Long lifetime of up to 20 years (min. 7,500 cycles)
  • Long duration energy with the energy and power capacity easily and independently scalable
  • Safe with no cooling requirements and high flash point materials
  • Fully recyclable at the end of lifetime

This is said about costs – Using low cost materials and manufacturing techniques, we predict capital costs of approximately £120/kW and £75/kWh by 2022.

I feel there could be something about this technology, but we’ll only know, when the demonstrator is fully working.


Sunamp will get GBP 9.25 million to test its thermal storage system in 100 homes across the UK.

On their home page, Sunamp has a banner of World Leading Thermal Technologies, with this description underneath.

Sunamp designs and manufactures space-saving thermal storage that makes UK homes, buildings and vehicles more energy-efficient and sustainable, while reducing carbon emissions and optimising renewables.

They do appear to have sold something, which is always a useful thing to do.

This page on their web site,  describes their Thermino Thermal Storage For Domestic Hot Water, where this is said.

Thousands of Sunamp thermal batteries are already in homes across the UK storing heat from low-carbon energy sources and releasing it for mains-pressure hot water when needed.

Our Thermino batteries replace traditional hot water cylinders – direct (for grid electricity and solar PV) or indirect (for boilers and heat pumps).

They are up to four times smaller than the equivalent hot water tank because they are filled with our energy-dense phase change material, Plentigrade. This means that heat pump systems can be installed where otherwise they wouldn’t fit, for example.

The key seems to be this substance called Plentigrade!

This page on their web site describes Plentigrade.

Under a heading of Storing Energy As Heat And Releasing It When, And Where, It’s Needed, this is said.

Sunamp thermal batteries are energy-saving thermal stores containing Plentigrade: our high-performance phase change materials (PCMs) that deliver heating or cooling reliably, safely and efficiently.

Plentigrade, with its perpetual phase changing ability, is at the core of our products.

Our breakthrough technology was created in collaboration with the University of Edinburgh, ranked among the top 20 universities in the world, and the UK’s national synchrotron particle accelerator, Diamond Light Source. To find out more about the chemistry behind Plentigrade, read our blog.


  1. This product almost looks to be too good to be true.
  2. But I’ve checked and it doesn’t seem to have appeared on Watchdog.
  3. It’s yet another breakthrough, that has used the Diamond Light Source.
  4. How many other developments would happen with a Diamond 2 in the North, as I wrote about in Blackpool Needs A Diamond?

I have a feeling, that my house needs one of Sunamp’s thermal batteries.

University of Sheffield

The article says this about a grant to the University of Sheffield.

The University of Sheffield has been awarded GBP 2.6 million to develop a prototype modular thermal energy storage system designed to provide optimised, flexible storage of heat within homes.

There are several thermal batteries around for houses.


The article says this about a grant to RheEnergise.

With a GBP-8.24-million grant, RheEnergise Ltd will build a demonstrator of its High-Density Hydro pumped energy storage system near Plymouth. The technology uses a fluid denser than water to generate electricity from gentle slopes.

I wrote about this in Plan For £8.25m Plymouth Energy Plant To Generate Power From Cream-Like Fluid.


The article says this about a grant to EDF UK R&D.

The government is also backing with GBP 7.73 million an initiative of EDF UK R&D and its partners, the University of Bristol, Urenco and the UK Atomic Energy Authority (UKAEA), to develop a hydrogen storage demonstrator using depleted uranium at UKAEA’s Culham Science Centre in Abingdon, Oxfordshire.

I wrote about this in Innovative Hydrogen Energy Storage Project Secures Over £7 million In Funding.


They are a mixed bunch of ideas from around the UK, that I think will produce at least two good winners.


December 2, 2022 - Posted by | Energy Storage, Hydrogen | , , , , , , , , , , ,


  1. I’m not sure what I think about all of these funding initiatives that the Government seem to announce on an increasingly regular basis.
    Is it to publicise how active they are in supporting innovation or how indescrimate they can be in doling out taxpayers money?

    Comment by fammorris | December 2, 2022 | Reply

  2. Having spoken at length to companies and a university, who have received funding, I think that the government are doing their due diligence. One of my companies received government funding and another had a speculative grant from Glaxo.

    The Glaxo idea worked, but the contract didn’t give Glaxo sole rights to any development and we sold the idea to another company.

    The government has also invested in three companies, that I had already invested some of my pension in.

    I have been following and developing high technology for fifty years and I have never seen a time with so many good ideas. Some failed ideas of the sixties and seventies are now coming round for a second time.

    We live in interesting times.

    Comment by AnonW | December 2, 2022 | Reply

  3. I have a Sunamp in my kitchen, which replaced my ancient gas boiler a couple of years ago. It takes some getting used to, as it provides hot water at mains pressure, and will provide hot water until the cold water running past the PCM causes it to change phase – meaning you can go away for the weekend, turn it off, and still get hot water on your return.

    I was planning on using it for central heating too, but the problem was my system was pretty old with lots of gunge floating around. This would have damaged the PCM without lots of filters, so I removed the CH and went electric – just before elec prices went through the roof.

    Sunamp have been around for some time (the names Thermino and Plentigrade seem to be new though), and have received quite a lot of funding from the Scottish government for various trials (they are based on the A1 E of Edinburgh). So I’m not sure why the UK gov has now decided to fund them as well – playing catch up?

    Comment by Peter Robins | December 2, 2022 | Reply

    • Sounds good! My central heating is underfloor water, so I suspect that would be better than a traditional radiator system. I’ve also got solar panels. My house also gets too hot in the summer and really needs full air-conditioning.

      According to the original article, this appears to be the reason for the grant.

      Sunamp is set to gain £9.25 million for an advanced thermal storage system which will be used in a trial across 100 homes in the UK. The company manufactures a proprietary heat battery technology, which the trial will explore means of expanding the energy storage capacity of.

      Comment by AnonW | December 2, 2022 | Reply

      • You might be better off with a heat pump, assuming you have somewhere outside to put the unit. You’ll probably find the same as I had with the Sunamp though, in that there are very few people who know anything about them.

        You can connect a PV installation to a Sunamp, to use instead of/as well as grid power, but you need a different model to the one I have.

        Comment by Peter Robins | December 2, 2022

  4. Thanks! I was told that my house is not suitable for a heat pump.

    Comment by AnonW | December 2, 2022 | Reply

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