Today we achieved an ambition that I’ve been working up to for at least 4 years – we did the tour at the electric mountain in Llanberis, the Hydro Electric Power Station.
Last time we tried to go along, Joel was only 3 and for this reason we were refused admittance. On the grounds that it’s a power station, which was presented to us as though 3 wasn’t just an arbitrary number they had chosen as the threshold. Or possibly their insurers.
Anyway, he was wearing sandals, so wouldn’t have been able to go in anyway.
Anyway, one letter of complaint and 4 years later, we tried again. This time we called ahead to reserve tickets, but as it happens we needn’t have bothered – it seems the 1630 bus isn’t that popular. Who knew??!?
The young lady on the front desk could do with some training in interpersonal skills as she completely failed to make eye contact through her interaction with Steve where she told him you aren’t allowed to take phones or bags or really anything on the tour, but there are lockers for which you need a pound coin. We made sure we had a pound coin by buying 2 cups of tea and 2 peaches before embarking on the trip of a lifetime.
The tour starts with a short video explaining the background to the power station. It’s main use is to supply instant additional power at times of national needs, i.e. during key episodes of EastEnders. They have 6 turbines which are switched on depending on demand – all six were apparently in use just after Phil Mitchell was shot and immediately after the last solar eclipse, when we apparently all watched it, then headed indoors and put the kettle on.
So, it’s not always working at full capacity. The water throughput and amount of power that can be generated are huge. All 6 turbines going at once can power Wales, but only for 5 hours because then the water runs out.
And this is where my slight deflation comes from.
Putting aside the fact that no cameras means we didn’t get pictures of us wearing the fetching hair nets they supplied for under the hard hats, this is definitely not a green source of energy. The water is dropped from one lake to another to generate the electricity, and is then pumped back up the hill overnight to start again the next day.
It takes 1.5 times the energy generated to pump the water back up through the system over night. It takes 6 hours.
It only works economically because they use “economy 7′ electricity which they pay 1/5th as much for as the electricity they generate during the day and charge for. Which comes from coal or nuclear or other non-renewable sources.
The overheads and up front costs were measured in millions on 1980’s money. They made that back in a handful of years.
Yes, the energy supplied is a much-needed top-up to stop bits of the network from having to be shut down at peak times, but it’s basically a money-making factory. The turbines which weren’t being used were spinning in preparation for being able to be turned on – which presumably uses energy itself. Those spinning turbines are making *more* *money* than the ones which are generating power because of the “readiness” charge the company levies to do that. You’ve got to admire the chutzpah, but as an eco-activist, I’m really quite disappointed.
So, its main selling point is quick, instant additional energy. It’s a happy side issue that this energy source doesn’t directly involve putting another coal on the fire.
Also, Steve was the only one of us who I think was actually fully engaged. To the rest of us, it was big noisy machine rooms and an interpretive video would have done the trick. Especially since they banged on about the big hole they dug, but you can’t actually see very much of it.
So: find out what you can about it on the web and save yourselves the pennies and the indignity of the hairnets. I shan’t be going again, if only because I don’t want to encourage the culture of utter indifference displayed by the desk clerk.