Cheap alternative energy?

Just out of curiosity, how long would you be able to power a plasma tv using a car battery and inverter?
 
Just some rough maths, a TV isn't going to pull more than 3 amps is it? so a 45Ah battery will last 15 hours?
 
4.3 Kw to power a house?

Only possible if you have a small house and gas heating, hot water, and cooker.
1 electric shower would bring a 4.3Kw system to it's knees, even a typical kettle would take a chunk out of that :)
 
4.3 Kw to power a house?

Only possible if you have a small house and gas heating, hot water, and cooker.
1 electric shower would bring a 4.3Kw system to it's knees, even a typical kettle would take a chunk out of that :)

The future part of it would be, everyone with solar panels, everyone feeding into the network, and so when you need a little more power rather than pulling it from electricity made by burning coal, you're pulling it off the network which is being fed by solar.

Of course, the ad break in Corrie will become a national disaster, with old grannies taking to the streets in riots to protest their water not boiling.

Even then, night time use is heavy(not as bad as day time as office lights/manufacturing equipment, etc, etc, is largely shut down. We'd need to find a way for local substations to store a heck of a lot of stored solar energy throughout the day to be used up at night, and we really won't get away from having some nuclear power stations ticking over to provide energy when that runs out.

Wind is a joke though, ugly, big, irritating and can be loud, also I've heard its fairly unreliable, solar panels don't have a lot of things to go wrong really, while wind has essentially an engine that will need maintainance at some point and is spinning a heavy load for years on end.
 
Even then, night time use is heavy(not as bad as day time as office lights/manufacturing equipment, etc, etc, is largely shut down. We'd need to find a way for local substations to store a heck of a lot of stored solar energy throughout the day to be used up at night

Read an article a while ago about a pretty efficient storage method, it was effectively a scaled up thermos flask with a huge hunk of metal in it. Spare energy used to heat it up during the day, gives out energy when needed. I'll look for a link.

Edit: Found the link, only a preview available now though unless you sign in. Seems that over a year my memory of the technology got a bit rusty though. :p http://www.newscientist.com/article...-batteries-to-be-clean-energy-reservoirs.html
 
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solar power should have been used years ago on new builds,to much red tape i guess:confused:
A question,so like in 5 years there will be a shortage of power so even more bigger bills as we end up buying power from abroad,all the past goverments knew that the power stations lifespan and now we will end up with shortages while it takes 10-15 years to get a nuclear plant online:(
 
Just out of curiosity, how long would you be able to power a plasma tv using a car battery and inverter?

LCD tv's use around 30W, a decent battery has around 1,320Wh so around 40 hours assuming some inefficiency.

4.3 Kw to power a house?

The energy can be stored for later use, besides even though a shower is ~10KW it's only on for 5mins so it's not using that much electric from the grid.
 
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4.3 Kw to power a house?

Only possible if you have a small house and gas heating, hot water, and cooker.
1 electric shower would bring a 4.3Kw system to it's knees, even a typical kettle would take a chunk out of that :)

Where did you get 4.3kw from. If it's from a solar panel, that's say 4.5kw peak output. Which will generate around 5000kwh over a year, the average electrical usage is also around 5000kwh.
 
And owns your roof for 25 years, can you even sell your property on such a scheme?

Seems you can, not sure how potential buyers would take it could be a good or bad thing.
 
And owns your roof for 25 years, can you even sell your property on such a scheme?

ashadegreener said:
Q: Some people say it will be difficult to sell my home with someone else’s panels on them and that people won’t be able to get a mortgage on properties that have your panels.

A: This is completely false information that is a result of pure speculation by various people in the media. Not only have some homes already been sold with our systems installed but we now have the agreement of every major mortgage provider that they will give their consent to our installations and we have also had confirmation from these mortgage providers that having our system installed would not stop a homeowner from raising a mortgage on a property or for re-mortgaging purposes. Our in-house solicitor, Anne Emmerson, will confirm this. She can be contacted at [email protected] The Energy Saving Trust has statistics that demonstrate that homes with Solar PV on them sell 30% faster than homes without. Our panels are now so much in demand that we have created a new page on our website – Homes for Sale – where homeowners who already have our systems on their roof can advertise their home for sale on our website free of charge. We decided to do this after having had many prospective purchasers check properties through our website to see if they were suitable for our system before putting in a bid – on one occasion prospective purchasers withdrew their offer when they discovered that the house they were hoping to buy would not be suitable for our solar panel system and they consequently put in another application for another property that they were looking at. We have had tens of thousands of applications for our free solar PV systems. If there are many thousands who applied for our system, there will be many thousands who would be interested in a home for sale that already has our system in place offering free electricity, free maintenance and for which they will never have to pay a penny. More and more companies are now doing what we’re doing – the free solar system will soon become popular all over the country.

I doubt they would say otherwise, but I don't really see it being an issue for most.
Seems you can, not sure how potential buyers would take it could be a good or bad thing.

Guess it depends on the person, I think free electricity would be a selling point on a house though :p
 
Trouble is I can see people wanting rid of them in 5-10years. They are only 3.33kwp, you can use hardly any power as with such schemes you only use what is being produced. The company gets everything else. Which means you can use power when you're at work. So your saving is going to be absolutely tiny, and with prices prodicted to plummet and efficiency of panels to double. It's probably not such a good longterm investment. That's how I see it.
 
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