The Anonymous Widower

The Aussies Get Into Home Batteries

As you might imagine, Australia with its sunshine and lots of remote communities could be a big market for battery technology like Tesla’s Powerwall. But this article in the Australian Financial Review shows why the country will be a big market.

It says that for example in Queensland, a third of the houses have solar panels, which must only increase the demand for batteries.

But it also says that the way the Australians charge for electricity is different to the United States and this makes batteries much more useful. I think that in the UK, we follow the Australian model. Except for the sun of course!

The article has some interesting details on how the price of the devices will go, especially as it says that Panasonic who are one of the Big 3 battery makers will be entering the market soon.

I all think it goes to show that each market is different and I suspect that the UK market will be different again, as most of us don’t live in houses that are too friendly to solar panels.

But my house is with its flat roof, and I am watching the price of solar panels, because I reckon in the next few years, I’ll be able to fit a very affordable system, that will take me substantially off-grid, with a battery in the garage.

Solar panels, battery technology and small innovative energy companies are going to give the Big 6 energy companies, one hell of a kicking.

May 29, 2015 Posted by | Energy, Energy Storage, World | , | 1 Comment

British And French Engineers Can Work Together

In the Sunday Times today, they are talking about a £4billion project to import electricity into the UK from Iceland,  It is called Icelink and it would appear to have the backing of both the UK and Iceland governments. There’s more about it in this article in Utility Week.

So it got me thinking about undersea electricity connections around the world. There is a list of them here. And there is forty-four of them

Perhaps the best known is the connection between Kent and France, which is called the HVDC Cross Channel.  It is actually the second one and it has been running for nearly thirty years. A section in Wikipedia describes its significance.

Since the commissioning of the 2,000 MW DC link in the 1980s, the bulk of power flow through the link has been from France to Britain. However, France imports energy as needed during the summer to meet demand, or when there is low availability of nuclear or hydroelectric power.

As of 2005 imports of electricity from France have historically accounted for about 5% of electricity available in the UK. Imports through the interconnector have generally been around the highest possible level, given the capacity of the link. In 2006, 97.5% of the energy transfers have been made from France to UK, supplying the equivalent of 3 million English homes. The link availability is around 98%, which is among the best rates in the world. The continued size and duration of this flow is open to some doubt, given the growth in demand in continental Europe for clean electricity, and increasing electricity demand within France.

So it would appear it’s been successful and proves that we can work with the French on an engineering project.

It strikes me that we need to connect all of our power systems together in Western Europe. The UK is being connected to Ireland, Iceland and Norway and the Netherlands, Belgium and Germany are getting in on the act.

What you won’t find from reading about the cables, but you will in some newspaper articles, is that Norway will have the ability to store electricity in a pumped storage system in the future.

So when the wind is blowing and we have too much electricity, the Norwegians will pump water from a low to a high lake and when we want it back, the water will be released through a turbine. It’s like putting your KWh in a bank!

February 16, 2014 Posted by | Energy | , , , , | Leave a comment

Even Brunel’s Railway Couldn’t Cope

The Exeter to Plymouth line is one of the UK’s  most spectacular railway lines.  Or should it be was, as eighty metres of it have been washed away at Dawlish?

This report in the Exeter Express and Echo has some amazing pictures.

Brunel generally got his engineering right and seeing that the line opened in the 1840s and I can’t see any reference to a breakage of this nature before he didn’t do too bad.

But it does show how fierce the seas must have been!

Let’s hope that Network Rail had a plan ready for an emergency, such as happened last night.

February 5, 2014 Posted by | Energy, Transport/Travel | , , , , , , | Leave a comment

The Onward March Of Coal

From probably about the 1960s, I’ve always been a passionate opponent of burning coal.

Why my objection started I’m not sure, but it could have been meeting people at University, whose fathers and grandfathers had worked down mines.

There was also the disaster of Aberfan, which had an amazing affect on the UK. And then fifty and more years ago, there was always reports of people in the UK being killed underground in coal mines.

It could have been the optimism of the times, where for a time it looked like by the 1990s, we would have affordable fusion-based nuclear power, that would produce no nuclear waste. I remember ZETA.

I also worked briefly for Frederick Snow and Partners in the early 1970s, where I read about how a properly-designed Severn barrage could generate about a tenth of our electricity.

Only later did I learn about the pollution and carbon emissions of burning coal and that made me all the more certain that coal should be left in the ground.

In the 1960s, we missed so many opportunities to wean ourselves off coal and the myth of the noble miner grew.  No-one I’ve ever met, who’s been in a coal mine, wouldn’t have jumped at a nice, clean and much safer job.

I always remember about 1970 or so, the Guardian carried an article about how miners, who of course knew how to handle themselves in small spaces could be transformed into a rolling workforce that would insulate our houses properly.

Incidentally, I now live in a properly-insulated house for the first time in forty years and my heating bills are exceeding low. In fact because of the problems with the heating system, I just have the heating on very low and rely on the sun for the little heat I need. The insulation levels which are obviously very good, keep me warm. All houses should be brought up to these standards.  If the house is not capable of being improved, it should be demolished.

So this morning I now read, that the world is turning back to coal.

This is totally wrong.

As coal is almost pure carbon, every tonne of the filthy stuff produces a lot of carbon dioxide when it burns. Coal is also riddled with impurities, which when they burn produce some really noxious impurities.  Probably not much, but I wouldn’t live near a coal-fired power station.

At least with gas, there is a lot of hydrogen in the fuel, which burns to produce water. In fact for the same amount of energy, natural gas only produces about 40% of the carbon dioxide. Correct the figure, if you know better.

I won’t live that long, but in the future those on this planet, will regret all this burning of coal.

November 22, 2012 Posted by | Energy, World | , , | 3 Comments