UK sites with metered electricity

Have never bothered to take extra electrical appliances, we use a stove top kettle, toast under gas grill, cafetiere etc etc. But this year we took a small travel kettle (we could use the electric hot plate) as gas wasn't so easy to buy and probably will start to increase in price so we'd rather use what we've already paid for in the pitch price. I presume gas prices are going to rise even more in the future.

This all sounds a bit frugal but I don't want to replicate home when away so I'm happy to leave "stuff" behind.

If anyone can invert an equivalent to EHU heating system that can use and run on 12V I think they might be in for a few quid?

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With the right batteries at the right capacity, an inverted 12v supply could run (say) a 900w Truma (if wired to do so)...

the ratio of (say for ease of maths) the 240v output to 12v input is 20 times.

so a (say) 1 kw heating system for one our would draw 83 amps per hour from the batteries....a pair of lithiums at 100ah each could easily support this but not for long....

having said that, a few years ago we wouldn't even be contemplating a load like this on batteries, they've come a long way and may have to go much further in a world where all the 'power' eggs are in one basket.

the easy way to run a Truma without 230v is to turn it to 'gas'.

Gas isn't that green though and as someone posted (sorry can't remember - Nav perhaps) there may be a time when LVs can't have it?

I am sure it will happen regarding batteries, never when I was for-ever loading Ever-Ready batteries in to my toys when I was 10 or so did I ever think they would be able to give such assistance on my bike and never mind power a car at over 70 mph for such distances as we have now.

Actually I thought it was brilliant when rechargeable batteries came along in AA sizes, and even better when you didn't have to discharge them fully or you'd get the dreaded memory effect. 

I have just read all the posts on this thread and only one seems to me to have put pertinent numbers to this issue.  Thank you, Cornersteady.

"................. the cost of running 900W (call it 1Kw) for one hour is about 20p so six hours while we're out would cost £1.20.Really not worth worrying about, a coffee/tea... anywhere will cost more than that"

We can only use what is supplied and an extreme example where 16 amps is used constantly for 24 hours would equate to a cost of £4.80 (using the figures above which are  fair)  An unlikely scenario but it does perhaps show that if that is the maximum, how many years would it take to recoup the investment that some are suggesting?

 

 

 

I think you need to do your maths again SF, 16 amps for 24 hrs equates to a cost of £17.66 at £0.20p per unit.

16 x 230 = 3680watts = 3.680Kw x 24 = 88.32Kwh x 0.20= £17.66

peedee

No prob, just introduce a non EHU option at £17.50 less than the EHU option👍

I get £18.43 calculation result using the 240 volts that is more common around here, though I have seen it drop to under 215 in rural areas at "kettle time". This, of course, pushes up the current drawn by an appliance and can be enough to trip the trip as they work on current not wattage.

Anyone burning propane is emiting CO2 to atmosphere at a rate three times the weight of gas used.  So a 6kg Calor cylinder turns into 18kg of CO2. Not much for an individual caravan, but someone with more knowlege than me can multiply up by the number of sites and pitches in the UK to get an annual figure.

Thank you peedee, I claim brain fade due to age.

However. I still think given the scenario I tried to paint is an extreme one, I believe the problem is not as big an issue requiring the investment that some are advocating and likely to be counter productive.