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Generators / Re: Uk Grid-Tie >> Anyone done it?
« on: November 10, 2006, 02:08:02 PM »
Thanks for the responses guys - much appreciated.
Yes Peterako, I had all but given up on the post and assumed I was way off-track. Ignoring this possibility I will go on and explain something of what my febrile mind has been working at…..
The background to this was a QED moment I had. I looked at wind turbines up to 5KW, but they are all very well. Firstly you need planning permission for your mast, and then you need a certified system of connection primarily a decent inverter.... then you need the wind to blow - and not stop ever!
My logic went like this.... take the electrics (and DC generator) direct from a wind turbine - and strap it to a Lister running mostly WVO. Connect the DC output to an SMA Windy-Boy inverter and sell power to my util company at 7.9 pence a unit (KWh). [I also get to cancel out most of the power I have to buy at retail price - was £40 last month].
Here are some estimated costs.....v.rough!
SMA WindyBoy Inverter £2000
Listeroid £1250
Engine Shed £500
Electrics £250
Generator £500 [4-5KW]
.....TOTAL £4500+
To recoup this cost on free fuel alone (!!?) I would have to run the genset 24/7 for about 525 days! Although I have not included money saved on electric bills in this calc. I had also planned to use the excess heat to run a hot-tub [perhaps this is wasteful
]
For the time being I will have to go with you Mobile Bob, I'm going to order some more insulation for the house and get some more low energy light bulbs!!
Yes Peterako, I had all but given up on the post and assumed I was way off-track. Ignoring this possibility I will go on and explain something of what my febrile mind has been working at…..
The background to this was a QED moment I had. I looked at wind turbines up to 5KW, but they are all very well. Firstly you need planning permission for your mast, and then you need a certified system of connection primarily a decent inverter.... then you need the wind to blow - and not stop ever!
My logic went like this.... take the electrics (and DC generator) direct from a wind turbine - and strap it to a Lister running mostly WVO. Connect the DC output to an SMA Windy-Boy inverter and sell power to my util company at 7.9 pence a unit (KWh). [I also get to cancel out most of the power I have to buy at retail price - was £40 last month].
Here are some estimated costs.....v.rough!
SMA WindyBoy Inverter £2000
Listeroid £1250
Engine Shed £500
Electrics £250
Generator £500 [4-5KW]
.....TOTAL £4500+
To recoup this cost on free fuel alone (!!?) I would have to run the genset 24/7 for about 525 days! Although I have not included money saved on electric bills in this calc. I had also planned to use the excess heat to run a hot-tub [perhaps this is wasteful
]For the time being I will have to go with you Mobile Bob, I'm going to order some more insulation for the house and get some more low energy light bulbs!!