I have a Google Alert set for Tesla Powerwall and usually it just picks up pretty boring stuff, but this article from ecomento.com is better than most. It does state this.
The Tesla Powerwall won’t really make economic sense for most US customers until the price drops – considerably. The people who buy one now will help fund the research and development that needs to take place to drive battery prices down in the future.
So as with a lot of new technology, with my engineer’s hard hat on, I think it will be best to wait until the cost of solar panels, Powerwall-like devices and all the other electronics and control systems needed, have been proven to be reliable and have dropped in price.
My house here has a flat roof, which would be ideal for solar panels, so I’m watching the technology and will buy them, when the payback is less than five years.
Why five years? It’s the length of our fixed term parliament, so hopefully the financial conditions won’t be mucked up too much by a change of governmen.
With the election hogging the news, some things haven’t been given full coverage by the media.
This may all look like an expensive toy or gimmick perhaps with a few specialist applications, but I believe it is a technology that could become commonplace in the future.
The flow is with this device and as my trip on a battery-assisted train at Manningtree showed, btteries are no longer something to power milk-floats.
Using a battery in a modern energy-efficient home or business, which perhaps has a roof covered in solar panels is an interesting way of cutting out paid-for electricity, for a hopefully one-off purchase and installation payment.
I wouldn’t buy one now, as although the Powerwall is deliverable now, improvements in battery and solar panel technology will mean that the systems available in a few years will store and generate more electricity in a more affordable manner. I also suspect, we’ll see replacement window glass units, that can either let light through or capture it for electricity.
We will also see much better control systems, although I suspect the the one Powerwall has is pretty sophisticated.
So I’m hanging back now, but I will be looking to put solar panels on my flat roof in anticipation of these better storage systems.
Musk is right, when he says that energy storage is going to revolutionise the world. But I do think that there will be a host of better or improved ways to do it.
But there is work to do, as this image of south-facing roofs in Ipswich shows, solar panels are notable by their absence.
In a few years time, this image will show lots of solar panels.
It is another case of giving the engineers the money to finish the deveopment and householders the right sort of finance for installation, so everybody can realise the dream of a house that doesn’t use any paid-for electricity.
Electricity pylons in the UK are generally made to a design that dates from the 1920s. So National Grid, who are responsible decided to have a design competition in partnership with RIBA.
According to this story on the BBC, National Grid are putting up a test line of the winner to teach engineers how to put them up.
They certainly look to be an improvement, but after nearly a hundred years, you’d expect that!
I like the new pylons and hope to photograph them soon!
On the way back from Oxford, I passed Didcot Power station.
The chimney is very distinctive and there are now only three cooling towers, whereas for a long time there were six.
I’ve never visited the site, but a roommate at Liverpool University; Martin Sykes worked on the building before going to university.
My electricity meter is baffling me.
These are my dates and readings.
20-Oct – 37108
14-Oct – 37049
18-Sep – 38777
08-Sep – 38843
15-Aug – 38331
16-Jul – 36764
17-Jun – 35353
I can explain all of the figures until September the 8th, when because of the heat in July and August, I was using the air-conditioning a lot.
But the last few readings indicate to me, that something has gone wrong.
I have phoned my supplier; OVO, and they seem to be worried too. After my previous billing experience with nPower, I’m glad I’ve changed.
We live in an age, where every device we have has a different charger and everything else needs to be connected to the mains.
My phone, broadband and Sky television lines all come in at one end of my living room, whereas the ideal place for the television is at the other end on a bracket that allows the television to either face the room or be visible from the kitchen.
So I decided to put upwards of a dozen plugs at each end of the room and run three HDMI cables along the wall, so that I could feed the signals to the television. I also ran aerial and Ethernet cables along the wall. Note the two plastic trunkings.
Until now, I’ve just used long HDMI cables, which because they have to go into the back of the Sky and BT boxes, they go round the bend a few times and make everything difficult.
The new layout, has also allowed me to move my laptop, so that when I use it, I face directly at the television, which is much more comfortable.
This morning, I took the bus to Barking Riverside to get a feel of the area, that in a few years time will be served by the Gospel Oak to Barking Line Extension to Barking Riverside.
The Ripple Nature Reserve in the area, is just like some of the industrial wastelands, that I remember from my childhood in London after the Second World War.
They may well be, but judging by the reports from California about Tessla, it would appear that they are a long way away. This report from the BBC talks about the fires the cars are suffering. This is the first two paragraphs.
Battery fires in Tesla Model S electric cars have prompted an investigation by the US government’s auto safety agency.
Fires broke out in two cars in the US after debris hit the undercarriage, said the National Highway Traffic Safety Administration (NHTSA).
But just as with the Boeing Dreamliner, the batteries don’t seem to be up to the job.
As an Electrical Engineer, I believe that electric cars will not be a feasible proposition, until batteries can store several times as much energy safely as they do today.
Electric buses, trams and possibly some trucks are more likely to be commonplace, as their pattern of frequent stops and heavier payloads, may mean that some form of economic electric storage is available soon. Even with hybrid buses, one of the major running costs is the need to replace the batteries every few years or so.
I will be surprised, if electric cards, are little more than what they have been for the last hundred years; an interesting curiosity.
During Open House in September, I visited the Bunhill Energy Centre, which provides heat and power for homes in Islington.
There are now reports like this one on ITV, that they will be taking in the waste heat from the Underground and an electricity sub-station. I would assume the latter is the massive one between the Regent’s Canal and City Road, that provides power to the City of London.
Perhaps they should build a centre like Bunhill close to the Houses of Parliament to heat homes n Westminster!
I don’t like large onshore wind turbines, as I believe they destroy wonderful views and the economics are not very sound.
On the other hand, when they are offshore, they are less intrusive and the economics might be better. But even so the arrays have to be properly designed and sited.
The real place for wind turbines is to provide distributed power to difficult places, where a small amount of electricity is required and running a cable would be expensive.
I’ve not been happy on the effect of turbines on birds ever since, I read several articles about how in the United States, wind farms kill eagles and other large birds. Yesterday The Times published a similar article about their effect on bats.
I’m always sceptical about the reasons for publishing these articles, as I’m pretty certain, that they are very much the sort of story that pleases Middle England, who feel the turbines will make their house drop in value.
The Times also published a story about a wind turbine on the Welsh Assembly, which is also reported on the BBC. This is the first paragraph.
A wind turbine that cost the Welsh government £48,000 to buy has been generating an average of just £5 worth of electricity per month.
It all goes to show that wind turbines may not be as economic, as their proponents say they will be.
One thing I’d like to see is an open database on the Internet of all turbines, with their detailed cost, subsidy and revenue, so anybody who wanted to, could check the efficiency and economics of any turbine.
Only if that information wee to be freely available, would we be able to know if they were money well spent.