New 12v circuit for the eco-shed!

Last week I added a new 12 volt circuit to the eco-shed. The idea is that this can be used charge mobile phones and battery chargers etc. without switching on the inverter. The inverter draws power itself to raise the voltage to 240 volts, so it seemed a shame to then use a mobile phone's transformer to take it back down to something like 5 volts again. So I bought a 12 volt adapter, such as you might get for a car for charging 2 items from a 12 volt socket, cut off the bit you plug in, wired it to a 1-way light switch and ran a 2-core cable to the battery. Great!

The bad news? My mobile car phone charger is for an older model of phone and doesn't charge my phone. And the universal adapter I bought to solve that problem doesn't seem to work either. What have I done wrong?? Well I would check but I accidentally left my multimeter on & the battery went flat. And it's a weird battery too, a 12v 23 amp one, so I'll have to order a new one before I find out. Drat!

Does environmental protest work?

I read Plane Stupid's latest blog with mixed feelings of mild amusement and futility. There's some useful contributions to the climate change debate on their website, and there's no doubt that the right to protest is an important part of a functioning democracy. But I have big doubts as to whether waving placards in peoples faces, interrupting public debates and normal peoples' working day has any effect on anyones behaviour at all. It's a democracy. Engage in debate, sure, but don't stifle it, that just leads to stronger polarisation of everyone's views, wastes energy and prevents positive change.

In all likelyhood the global economic downturn will have a bigger effect on airlines that any banners or placards. If you really want to affect change, 

• don't buy out-of-season foods, consumer electronics, clothing or goods manufactured outside of your own country
• become an independent MP and engage in the political debate
• live the life you think people should lead - become an example to us all
• don't get your electricity from the national grid
• use public transport, don't drive (not even to protests!)
• work near where you live
• grow your own food
• plant trees
• buy local

Want to change the world? Change yourself.

Nano-heating for eco-sheds

I spent three hours up there yesterday, marking schoolwork. It worked exactly as planned, a quiet sanctuary in which I could blitz the workload before rejoining the family. It was pretty seriously cold up there, so after a short while my thoughts turned to heating. And that's there they stayed, more or less, until I returned to the house, except for the occasional diversion to wondering whether my toes were still there. 

It's well insulated with eco wool, but that doesn't get it warm in the first place. If it's going to be a proper, year-round alternative workplace, I'll have to heat it. I reckon I've got three options.

• some sort of low energy electric heater like this one, which, apart from the environmental cost of manufacture, should be fairly green once purchased given my windmill energy production. Although I'd really need a solar panel to boost input
• a tiny wood burning stove like this one, I do a bit of woodwork up there and always have plenty of off-cuts, so with sawdust and everything I might have enough to keep warm, carbon-neutrally. But the flue would cost, as it would have to be double-skinned to avoid burning the roof down
• the final option is some kind of wacky tiny solar set-up. I could put a little radiator in the shed linked to another one, painted black (as Mick Jagger suggested) in a glass-fronted box. A tiny solar-powered pump could circulate water round the system. This would be great but I can imagine all sorts of engineering problems and I don't really want to spend the whole summer setting it up.

I'll dwell on it some more, but I can imagine going for the little stove solution preferentially. It seems like the cosiest option. Unless anyone else has got a better idea.

Get the book! And feed the birds!

I've just finished a glass of apple juice made from the last apples from our apple trees, picked in October. I think that's amazing! I didn't even store them properly! I left them in plastic bags in the conservatory which is not really the recommended storage method. Mind you, most of them were all wrinkly and some of them went off as a result of my inadequate storage regime. But that had an unexpected benefit. With the cold weather the poor old birds here have zip to eat at the moment. I've put out seeds for them and boy! do they get through them. So I chucked the rest the apples out for them and they love them! What a green solution to the winter bird-feeding problem. Next year I'll try to store them properly (I'll get some apple boxes from the grocers) and save more for us and the birds.

Ok, a plug. I've written some notes outlining how to wind-power your shed, just like me! They're very comprehensive and take you step-by-step through the whole thing, from sourcing materials to having plans for the brackets and things. They're available from ebay here and they're terribly good value and 2 quid. I'm trying to raise cash for me solar panel, you see.

Maybe it's ok after all...

That article about Google searches producing stacks of CO2 seems to have caused quite a stir: denials and counter-claims. I certainly hope it isn't true, I feel guilty enough as it is! Not more guilt!

Mind you, true or not, it does remind us that using the web burns juice. There's a price for everything isn't there? But it's easier to ignore when you don't have to bear it directly. More guilt!

Aeolian boom and bust

Three weeks of flat calm is finally over with a huge gale. My battery's charging regime is up and down like the FTSE 100. It means I finally got some proper use out of it today, I worked in the shed for a few hours, most of it spent getting the wireless signal sorted again. It seemed to drop out with all the wind and rain, but some Airport Express juggling had it working again. For some reason, one of them seems to deliver a better signal than the other one. You'd think they'd all be the same wouldn't you? Go on Apple, why are they different?

Anyway I got a couple of hours of productive effort up there. But while I was procrastinating I came across two interesting net nuggets. The first is this story from the Daily Mail. Could it be true? It's terrible! There was I, being all smug, thinking that saving a few watts here & there is an eco-help and then this. A couple of google searches generates the same amount of CO2 as a boiling a kettle! I do about 100 a day! It's a disaster. Now what do I do? Back to books I guess.

The second, which cheered me up a little after the first, was this staggering photograph of Saturn by the Cassini spacecraft. Glorious. For all our faults, we can achieve some amazing things can't we? Earth is in the photo too! Home sweet home. Let's hope that 2009 is the year that we collectively agree to make it sustainably habitable for all of us.

But will it mean less surfing? Oh boy...

Happy New Year from the Eco Shed!

Happy New Year everyone!

It's been a few weeks since my last post what with the chaos in the run-up to Christmas and everything. But I haven't been idle! I'm writing this post from my shed! This is a wind-powered eco-post!

I finally finished the little folding table that you see in the photo here. It's made out of discarded wooden bed headboards and folds flat against the wall to save space in here when I'm doing some woodwork. And I just joined a new Apple Airport Express to my house network, so I have internet access up here. 

It's chuffing cold, mind. I can imagine having to find a little low-energy heater to make conditions a little more tolerable when it's a mere -2 or whatever it is today. 

But I'm delighted to be in a position to use the shed in anger, so to speak. My New Years Resolutions:

• make regular use of the shed for working. This should save time on the work and money on energy.
• cycle to work more often. It's only 3 miles away & I don't really have an excuse not to. Except I don't like cycling when it's rainy, which since I live in north Wales, is often.
• save for a solar panel to compliment the windmill. It's been flat calm for a few days again & my battery is only showing 12.3 volts - almost halfway through.
• spend more time with the kids having saved it up here in the shed!
• become ludicrously rich somehow.

Like all of us, I don't always keep all my new years resolutions! But my intentions are always good.