Keith, don’t believe everything you see on the internet http://www.youtube.com/watch?v=FYovDvyheZ4
Energy has to come from somewhere. You cannot get more out than you put in, and most of the time you get quite a bit less out than you put in.
In a petrol engine you put in chemical energy, the petrol, but only about 30% comes out as usable mechanical energy to move your car. The other 70% is just wasted as heat and noise.
A large electric generator is very efficient, but the electrical energy you get out will never be 100% of the mechanical energy you put in to turn the generator.
ferryman also commented
- That is a really interesting site. For one thing it shows wind is contributing consistently more than hydro. Look at coal though it is still ‘king’ and gas is huge.
- The “system” is called the “Balancing Mechanism”. As I understand it it is a market. Energy demand is forecast (not sure how far ahead) generators then have to bid to provide electricity in half-hour slots. National Grid accept bids to fulfill the predicted demand. They will also be paying some generators to keep some energy in reserve incase the forecasts are low or there is a problem like a big nuclear plant shutting down.
If for some reason bidders cannot provide the power they offered then they are penalised, possibly at many times the rate they were going to be paid.
If the wind companies are participating in bidding like this (and I think they are) then they must be pretty comfortable about how much power they can produce and when.
The “system” seems to be an open market aimed at delivering a reliable supply at lowest cost.
- There is nothing wrong with getting paid a premium for home generation. It makes homeowners invest their own money and gives them an incentive to make the thing work.
That is exactly what the Germans did with solar. People got a premium, a larger market made the price of panels drop so even more got installed and the Germans established a panel manufacturing industry.
In the UK we offered subsidies, companies got setup then we pull the carpet away by removing the subsidy.
Is that not what happened?
- Wind turbines don’t turn at the speed of the wind. They look like they are rotating quite slowly, but what you have to consider is how fast the tip of the blade is moving to go round a circle of that diameter – the answer is damn fast.
I am not aware of a lot of birds getting killed. I visited a windfarm in France once. The locals took people to it as part of a nature walk. These folks had eyes like hawks. There were large birds flying in the area. They told me they had never found any birds killed by the turbines but they had found them electrocuted by the overhead lines (big birds).
For me sub-sea tidal turbines is the way to go, predictable energy. Not sure about the fish though.
Noise from pile driving is not something I had thought about, it does sound like a potential problem.
- The MYT engine is an attempt to design a better combustion engine. It may well work.
On the other hand perpetual motion or energy from nowhere machines will never work.
Think about a battery, running a motor to turn a generator to charge a battery. Let it run till the battery driving the motor goes flat. Then swap the batteries, and repeat. What do think will happen? You will have to swap the batteries sooner and sooner and after a while you will have two flat batteries.
Recent comments by ferryman
- Argyll Flyer in Ardmaleish boatyard
Will the current linkspan works be completed by Friday 21/June?
Working on the linkspan while the Argyll Flyer was having its recent scheduled maintenance would have made sense, but they did not do it.
Bring forward maintenance on the Argyll Flyer by a minimum of 6 months and more than likely 8-9 months seems odd.
Why are they not waiting till September to work on the Argyll Flyer. That is closer to when she is due her maintenance and I hear the Gourock linkspan will be out of action again then?
- Shetland Line remains in legal contention with Scottish Government on Northlink Ferries tender
Regarding the Dunoon Gourock ferry service one of the ‘needs and requirements’ the Scottish Government failed to specify was that the vessels employed could actually operate reliably in the weather on the Firth of Clyde.
How incompetent is that!
- Argyll Flyer spotted going into Ardmaleish yard on Bute this afternoon
The Ali Cat was having technical problems whilst the Argyll Flyer was being maintained recently, resulting in periods of no service.
Following its maintenance the Argyll Flyer was indeed continuing to suffer technical problems.
The linkspan at Gourock is now being serviced with the result that the Argyll ferries is, once again running a reduced service. This happened right through the Dunoon Film Festival.
It is beyond belief that the Argyll Flyer maintenance and the repairs to the linkspan should not have been planned to run concurrently and without clashing with the Film Festival.
- Scottish Government forced to intervene on loose-mouthed Russell gaffe in Campbeltown
JimB asked “why does Dunoon not set out to attract day trippers?”
Dunoon would make an excellent destination for people from Glasgow seeking both Day Tripper and Weekend Breaks.
Why don’t they come though?
Well they certainly won’t drive the long way round, it is too far. There are plenty of other attractive destinations that are closer to home.
A relatively short drive and the pleasant experience of a ferry crossing to the town ought to be attractive, but then we hit the price barrier – £44.50 for a young family of 4 in a car.
Why would people pay that premium to come to Dunoon when they can go elsewhere?
The passenger only service is unattractive because of its unreliability.
What Dunoon needs is a truly competing vehicle ferry services.
- Reminder: Argyll Ferries on ‘refit’ service schedule
The scottish Government has failed to deliver on the transferable ferry tickets it was going to setup. The bus scheme is a bodge that adds anything upto two hours to travel time.
Any news on what they are going to do for Cowal Games or are they just going to try another gamble on the weather.
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