The Anonymous Widower

Cheesecake Energy Receives Investment From The University Of Nottingham

The title of this post, is the same as that of this article on NewsAnyway.

This is the introductory paragraph.

Cheesecake Energy Limited (CEL) today announced it has received investment from the University of Nottingham to support UK-wide pilot programmes for the company’s energy storage solution.

Thse two paragraphs are a brief description of the company, their technology and what they do.

Cheesecake Energy Limited is a fast-growing startup developing energy storage at 30-40% lower cost than the current market leader, lithium ion batteries. Its system uses compressed air and thermal energy storage to achieve high efficiency, long lifetime and dramatically lower environmental impact. 

Founded in 2016, the company has already established itself within the Nottingham, and wider East Midlands energy ecosystem — having secured initial interest from local councils and bus services for pilot programmes. The company is currently designing a 150 kW / 750 kWh prototype system for completion in Q4 2020 which will be deployed with a local bus depot for charging of electric buses using renewable energy.

This is the home page of their web site, which proudly announces.

The Greenest Battery In The World

We’ll see and hear that slogan many times in the next few years.

A few of my thoughts on the company.

Cheesecake Energy’s Technology

Cheesecake Energy says it uses compressed air and thermal energy storage to achieve high efficiency, long lifetime and dramatically lower environment impact.

Three other companies also use or may use compressed air to store energy.

As Cheesecake appear to be using a thermal energy storage, have they found a unique way to create another type of compressed air storage?

Battery Sizes

How do the sizes of the three companies batteries compare?

  • Cheesecake Energy prototype – 150 kW – 750 kWh – five hours
  • Form Energy for Great River Energy – 1MW – 150 MWh – 150 hours
  • Highview Power for Vermont – 50MW – 400 MWh – 8 hours
  • Hydrostor for South Australia – 50+MW – 4-24+ hours

The Cheesecake Energy prototype is the smallest battery, but Highview Power built a 750 KWh prototype before scaling up.

Note.

  1. The first figure is the maximum power output of the battery.
  2. The second figure is the capacity of the battery.
  3. The third figure is the maximum delivery time on full power.
  4. The capacity for Hydrostor wasn’t given.

The figures are nicely spread out, which leas me to think, that depending on your power needs, a compressed air battery can be built to satisfy them.

Charging Electric Buses

Buses like this Alexander Dennis Enviro200EV electric bus are increasingly seen in the UK.

And they all need to be charged!

Cheesecake Energy say that their prototype will be deployed with a local bus depot for charging of electric buses using renewable energy.

  • An electric bus depot should be a good test and demonstration of the capabilities of their battery and its technology.
  • Note that according to this data sheet of an Alexander Dennis Enviro200EV, which is a typical single-decker electric bus, the bus is charged by BYD dual plug 2×40kW AC charging, which gives the bus a range of up to 160 miles.
  • With a 150 kW output could Cheesecake’s prototype charge two buses at the same time and several buses during a working day?
  • Would DC charging as used by Vivarail’s charging system for trains be an alternative?

To me, it looks like Cheesecake are showing good marketing skills.

I do wonder if this size of charger could make the finances of electric buses more favourable.

Suppose, a bus company had a fleet of up to a dozen diesel single-decker buses running services around a city or large town.

  • How much would they spend on electricity, if they replaced these buses with electric ones?
  • Would being able to use cheaper overnight energy to charge buses in the day, be more affordable?
  • Would electric buses run from renewable electricity attract passengers to the services?

These arguments for electric buses would also apply for a company running fleets of vans and small trucks.

To me, it looks like Cheesecake are showing good engineering/marketing skills, by designing a product that fits several markets.

 

 

May 11, 2020 Posted by | Energy Storage | , , , , , , | 3 Comments

The Robin Hood Line In Nottingham

This Google Map shows the Southern end of the Robin Hood Line as it connects to Nottingham station.

southrobinhood

Note the triangular junction towards the bottom of the map.

  • The line to the East goes into Nottingham station.
  • The line to the West goes to Beeston and eventually to London. In a few years time, it will go to the East Midland Hub station for HS2.
  • The line to the North is the Robin Hood Line and the Erewash Valley Line.

The \Erewash Valley Line splits to the West, from the Robin Hood Line just off the top of the map to the North of Nottingham University’s Jubilee Campus.

It is worth looking at services that go between these two branches and Nottingham station.

Langley Mill station on the Erewash Valley Line has the following services.

  • One train per hour (tph) between Nottingham and Leeds.
  • A few trains per day between Liverpool and Nottingham.
  • Some trains between Sheffield and London stop.

Passengers though are expected to take the infrequent service to Nottingham for onward trains.

On the 2nd of April, Ilkeston station will open on the Erewash Valley Line between Nottingham and Langley Mill.

Hucknall station on the Robin Hood Line has two hourly services.

Plans also exist for a branch to Ollerton, so this might change the service pattern. But there is no more than a total of four or five trains per hour in both directions.

All of these services go round the North-East chord of the junction and thus connect Nottingham University’s Jubilee Campus and  Nottingham station

But there are no stations along this line, although there used to be one at Radford.

In A Look At New Station Projects, I came across references to stations at Faraday Road and Lenton.

Both locations are on this section of line and it would seem logical that the more Northerly location would be ideal to serve the Jubilee Campus.

If only the local trains stopped, it would have the following services.

  • 1-2 tph to Ilkeston, Langley Mill and Alfreton
  • 2 tph to Hucknall, Kirkby-in-Ashfield and Mansfield
  • 3-4 tph to Nottingham.

Other questions and issues are raised.

  • Would a second station to the South nearer to the triangular junction be worthwhile?
  • Could the Nottingham Express Transit. have an interchange with the trains the Robin Hood Line?
  • Could the Nottingham Express Transit call both campuses of the University of Nottingham?
  • In future could 1-2 tph go to the HS2 station at East Midland Hub?

It does appear that there is scope for improving connectivity in the Western Part of the City Centre.

 

February 7, 2017 Posted by | Transport | , , , , , | 1 Comment