The Anonymous Widower

Mathematics Of Energy Storage

I am particularly talking about the sort of energy storage that is attracting the attention of Energy Storage Funds, that I wrote about in Batteries On The Boil As Fund Attracts Investors.

The Times article of the same name has this paragraph.

A typical 50-megawatt energy storage site of the kind the company intends to acquire hosts 19 containers each housing thousands of lithium-ion cells. A fully-charged container has the energy to boil 32,000 kettles.

This page on ConfusedEnergy.co.uk, says this.

We are often told to only use as much water as we need in a kettle and not to fill it to the top, but what are the potential annual saving in doing this. Well it takes roughly 4.5 minutes to boil a full (2 litre) kettle with a power rating of 3kW (kilowatts).

This means that to boil a kettle needs 0.225 kWh.

  • Boiling 32,000 kettles needs 7200 kWh or 7.2 MWh
  • Which means that the total capacity of the nineteen container energy storage facility is 136.8 MWh.

So the energy storage could provide the rated 50 MW for nearly three hours.

Lithium-Ion Batteries, Supercapacitors Or Both?

The article in The Times doesn’t mention supercapacitors.

If you watch the video in A Must-Watch Video About Skeleton Technologies And Ultracapacitors, Skeleton Technologies state the following about their ultracapacitors.

  • They are more affordable.
  • They generate less heat.
  • They have a higher energy density.
  • They can handle more charge/discharge cycles.
  • They have a faster response time, so would respond better to sudden demands.

I suspect there may be several operational and financial advantages, in replacing some of the lithium-ion batteries with supercapacitors.

 

 

November 10, 2018 Posted by | World | , | Leave a comment

Ryanair Plane Seized Over €500k Debt

The title of this post is the same as that of a short article in today’s Times.

Surely, it is another reason to fly with someone else!

November 10, 2018 Posted by | Transport | , , | Leave a comment

Batteries On The Boil As Fund Attracts Investors

The title of this post is the same as that of an article in the Business section of today’s Times.

This is the first two paragraph.

Investors have sunk £100million into a new listed company that aims to use shipping containers packed with lithium-ion batteries to buy, store and sell electricity.

Gresham House Energy Storage Fund claims that it will make a return of 15 per ceent a year by providing electricity when surges in demand coincide with periods when the wind is not blowing  or the sun is not shining.

Gresham House Energy Storage Fund is the second listed energy storage fund in London, after Gore Street Energy Storage Fund , launched in May.

I think we’ll see more of these funds and use of the technology.

Suppose you were a farmer with a windy hill top farm, that had a heavy electricity bill.

Realistically, sized, priced and financed a  wind-turbine and a container full of batteries, might be just what your finances wanted.

All you’d need now would be an electric Range-Rover and a fleet of electric tractors!

November 10, 2018 Posted by | World | , , , , | 2 Comments

Bad Logic From Marks And Spencer

I am not the largest of individuals being around one metre seventy and sixty-one kilos.

But then many coeliacs are on the smallish side.

So when I saw this small meal which was entiled Beef Chilli & Cheese Filled Jacket Potato, I suspected that it could be gluten-free, as it seems most of Marks and Spencer’s beef chillis are made without gluten.

On turning the packet over, I found my reasoning was correct, as the dreaded g-word was missing.

Next to this baked potato on the shelf, was a Smoked Haddock Mornay Filled Jacket Potato.

Now this is where the logic is bad

  • Some of their fish dishes with a Mornay sauce are gluten-free and others are not. This was one of the ones with gluten!
  • Surely, if all chillis can be gluten-free, then all fish Mornays should be the same as to gluten.
  • Perhaps, all baked potato dishes like this should also be the same as to gluten.
  • I also think that with fish, shepherds and cottage pies with a potato topping, whether a pie is gluten-free or not depends on the range.
  • And with sausages and burgers, they are all gluten-free.

If you are vegan or need to be dairy-free, I’m certain there are other examples of similar products varying as to acceptability.

How Was The Eating?

Not bad at all! I’ll try another, but I would love to try the smoked haddock variety!

Conclusion

I believe that a regular shopper in a particular supermarket chain, should be able to ascertain, if a product is suitable by just reading the title. They can always check by reading the detailed labelling

 

November 10, 2018 Posted by | Food | , , , | Leave a comment

New Piazzas And Public Space Next To Historic Stephenson’s Bridge And Beneath Ordsall Chord Could Open ‘This Winter’

The title of this post is the same as that of this article in the Manchester Evening News.

This is the first paragraph.

It had been feared the space would remain closed for years – but Salford Council say they will make sure it opens as soon as they take ownership.

It is good news for those like me, who like interesting city walks.

It is also time for Network Rail and Lewisham and Southwark Councils to sort out what is to happen around London’s new rail structure; the Bermondsey Dive-Under.

This article on the Landscape Institute web site from 2017, is entitled New Railway Junction Gets Top Marks For Biodiversity., describes how the work at Bermondsey has won an award. This is said.

The project involved removal of 21,900 tonnes of contaminated material and eradicated the Japanese knotweed. To increase biodiversity, wildflower planting and green walls were installed to offset vegetation lost in the process of removing the contaminated soils. The project includes 765m2 of green walls under arches and access ramps, and the planting of wildflowers on the railway embankments to create green corridors and stepping stones to the wider area. The team also carried out extensive community engagement, including upgrading the garden in the Lewisham Community Centre.

I think there should be a public walking route through this area.

 

November 10, 2018 Posted by | Transport | , , , , , | 2 Comments