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Build your own solar-​​powered scooter

Photovoltaic cells produce electricity directl...
Image via Wiki­pe­dia

It seems hybrid power and bio­fuels aren’t the only options for those look­ing to travel green. The DIY moped seen here is the work of the intrepid Don Dunklees in Min­nesota, who uses it for his daily five-​​mile commute.

We were a little wor­ried that the scooter’s wing-​​like solar array might col­lect the odd passer-​​by, but appar­ently the PV cells fold away when the it’s on the go. Once Don’s at work, the panels fold out again and soak up enough sun to charge the bat­tery for the jour­ney home.

If you’re up for a bit of DIY and you like the idea of a moped without the angry wasp noises, you can down­load instruc­tions here. Don says that the scooter is still going strong in its third year.

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Ori­gin­ally posted 2007-​​06-​​14 22:41:00. Repub­lished by Blog Post Promoter

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Posted in Motorbikes | View Comments

Will a new fridge-​​freezer save electricity, money?

Promotional Image of Smeg Fridges
Image via Wiki­pe­dia

So, a quick flick through my past posts reveals that, accord­ing to me, roofs are rub­bish, rain is rub­bish, fest­ivals are rub­bish, digital cam­eras are rub­bish, mobile phones are rub­bish, broad­band is rub­bish, cars are rub­bish and even rub­bish is rub­bish.

In short, modern life is rub­bish, except when it comes to fridges. Fridges are ace.

I won’t bore you again with the trials of living without one for a month, but my energy-​​saving chal­lenge was made easier by the fact that the old fridge broke at the start. I’d had half a mind to replace it, though, ever since I hooked it up to one of our power meters and dis­covered that it was using an incred­ible 15 kilowatt-​​hours (kWh) of elec­tri­city each week: enough to run my kettle for more than seven hours.

That had never seemed right to me, and I wanted to see whether a new replace­ment would really be that much better, or whether makers’ energy-​​saving claims are all just hot air.

Before I could find out, the old item had to be car­ried down the three flights of stairs from my flat, and a newer, unin­ten­tion­ally bigger ver­sion man­handled back up. This required the street-​​level removal of all of the replacement’s pack­aging, the sign­ing of a damage dis­claimer, and an almost super­hu­man effort not to upbraid the deliv­ery man for his insist­ence that it wasn’t going to fit until it already had.

If the first thing I learned from my new fridge-​​freezer was that it is chief among the things you don’t want to carry into a third-​​floor flat, the second was that modern examples are very, very good. After a quick wipe down, I hooked it up to the energy meter and set about load­ing it up with all the things I’d missed so much in my fridge­less month. Chiefly beer.

Fridge over troubled water

After the first day – much of which would have been spent work­ing hard to get everything down to tem­per­at­ure – it had used 1.45kWh, which seemed a prom­ising start. And des­pite extra demands from freez­ing bucket-​​loads of ice cubes, and left-​​over chilli and pasta sauces, at the end of the first week the meter was show­ing just 6.34kWh – less than half the elec­tri­city my old fridge would have used in the same time.

In the second week it only got through 5.05kWh, while in week three con­sump­tion was down to just 4.89kWh – less than a third that of my old fridge.

I’m impressed, frankly. New Fridge is bigger, colder and better than the old one, and yet it uses just a third of the power: It’s likely to save me more than ?

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Ori­gin­ally posted 2009-​​11-​​05 05:22:00. Repub­lished by Blog Post Promoter

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Posted in Energy | View Comments

Energy saving project: confessions of an overnight energy geekLow Carbon Households

Current Cost desktop monitor
Image by jntolva via Flickr

Some snip­pets of con­ver­sa­tion from our house late yes­ter­day evening:

Look what hap­pens when I switch on the kettle!”

Right, I’m going to try turn­ing off the lights in the kitchen!”

Oh my god, did you see what just happened when the wash­ing machine came on?”

I know – it’s sad but true. With less time and energy than is con­tained in one kilowatt-​​hour, we had trans­formed into elec­tri­city meas­ure­ment geeks.

I’d just got back from the launch of the Low Carbon House­holds pro­ject, which is being run by Lewes Dis­trict Coun­cil. Fellow Living con­ti­b­utor Jeremy and I will be mon­it­or­ing our home elec­tri­city use for a year, as will more than 30 other house­holds in the district.

An eco-​​eye out

We’ve all been equipped with an eco-​​eye mini, a neat little device that reveals what’s going on behind the scenes.

The idea of mon­it­or­ing energy use may not push everyone’s button, but when you get one of these bad boys clamped onto your supply you can’t help but get involved with it.

It’s very simple. You plug the sensor into the mains or insert a couple of bat­ter­ies (they came sup­plied with proper ones, Dur­a­cell AAs – when does that ever happen?). Then you lock it on to one of the wires going into your fuse­box – no cut­ting or rewir­ing required.

Next you put bat­ter­ies in the sep­ar­ate mon­itor screen, and set the time and the cost per unit of elec­tri­city (accord­ing to your last bill). And that’s it. You’re record­ing real-​​time use of power in kilowatt-​​hours, and can see how much your cur­rent use would cost over a week, month or year – as well as the likely CO2 emissions.

Within seconds, you’re won­der­ing why the level is so low, or so high, and why it’s chan­ging all the time. It’s a bit of a jolt.

We’d been told at the meet­ing by Cli­mate South East’s Mat­thew Bird that the kettle would be a shocker, and he was right. Making a cup of tea sent our low, mid-​​evening read­ing shoot­ing up five-​​fold. You quickly real­ise why the National Grid struggles to cope with the surge in demand during half-​​time in cup finals.

And…?

So, this is all very well. But will it actu­ally change the way we behave?

Well, the early signs are: yes. Our kettle doesn’t have a water gauge, so it’s easy to over­fill. I did exactly that this morn­ing, and felt so unable to waste the hot water that I made a full cafetiere (which could be reheated later, for rather less power, in the microwave) and a Ther­mos flask of tea for my train jour­ney later in the day.

I’ve eased off the monitor-​​watching a bit this even­ing, but it’s sat there, watch­ing, wait­ing, and ready to reveal the true energy impact the next time we hoover, or dry the kids’ hair or leave the TV on standby.

And as they say, know­ledge is power.

Anyone else out there got an eco-​​eye mini or sim­ilar smart meter plugged in to their home? Let us know your exper­i­ences of whether it’s help­ing you to save energy.

IMAGES by me

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Ori­gin­ally posted 2009-​​03-​​04 11:08:00. Repub­lished by Blog Post Promoter

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Car crash fraud: how serial cash-​​for-​​crash artist cost

The A34, Cheadle Hulme
Image by Gene Hunt via Flickr

There are peri­odic reports about how much car insur­ance fraud costs the insur­ance industry – the Asso­ci­ation of Brit­ish Insurers reck­ons it’s in excess of £40 for every policy.

Scene of the crimes - Eden Point roundabout, on the A34 close to Cheadle

Scene of the crimes — Eden Point round­about, on the A34 close to Cheadle (Greater Manchester Police/​PA Wire)

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Ori­gin­ally posted 2009-​​10-​​21 02:40:00. Repub­lished by Blog Post Promoter

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Posted in Cars | View Comments