Renewables

[sedgy34]

Hi Guys!!

Got a potential customer got 4 BIG houses behind some private gates each house costs 4,000 per year on gas and electric.Hes got a (paddock) few acres on the back of his garden (very nice) its classed as farm grazing land he wants me to put together a project so he can have a mix of renewables im going to suggest as follows:
1, 4kw pv system on ballast trays wired back to each house for 21p fit rate
2,A 50kw pv system as he will have a 3phase main put in the paddock with a seperate meter and m,pan 15.2pfit rate
3, a small scale wind turbine

The aim is to generate as much as posssible to offset his annual costs
your thoughts and ideas are welcome

CHEERS IN ADVANCE GUYS

 

[Cider]

OK great so you can save him some electric but what are the plans to save some gas?
The best way to use electric to heat a home (in my opinion) is to use a heat pump, however unless the house in very well insulated and has either oversized radiators or under floor heating then it will not work so well.

 

[sedgy34]

OK great so you can save him some electric but what are the plans to save some gas?
The best way to use electric to heat a home (in my opinion) is to use a heat pump, however unless the house in very well insulated and has either oversized radiators or under floor heating then it will not work so well.

yeh have done one of them 5 years ago very efficient too, not sure if we can convert as the houses are complete. thought about suggesting solar thermal too for his hw.

 

[cogsey133]

Have you also considered voltage optimisation to help reduce his electricity costs? relatively easy to install and they dont break the bank.

 

[sedgy34]

Have you also considered voltage optimisation to help reduce his electricity costs? relatively easy to install and they dont break the bank.

yeh we were fitting the voltis hd units but they were tripping old and new rcd,s in the cu,s voltis suggested change the rcd cause its change over cycle time was within 24ms same as rcd. we stopped installing them after that.

 

[cogsey133]

I have found the vphase units very easy to install and have had no problems with them. really interested to hear you issues with voltis units as this is an area i am keen to get more into.

Cheers

 

[Energetic]

Biomass district heating system on the commercial tariff.

 

[sedgy34]

I have found the vphase units very easy to install and have had no problems with them. really interested to hear you issues with voltis units as this is an area i am keen to get more into.

Cheers

the voltis units save 18% they fit inline after the meter and have a 63a breaker i normally use a clamp meter to see what the house is using as your downgrading to this 63a, my problem was only with the hd voltis unit and others had the same problem The normal 230v units i believe have been ok.the hd unit is for 237vto 253v.

 

[SolarCity]

the voltis units save 18%

Sounds great if it does. Do you have any real world data to back this up or are you going by manufacturers predictions?

I'm really keen on the idea of these units but I'm a bit skeptical.

 

[sedgy34]

Sounds great if it does. Do you have any real world data to back this up or are you going by manufacturers predictions?

I'm really keen on the idea of these units but I'm a bit skeptical.

CHECK IT OUT YOURSELF!!! marshall tufflex (voltis units)

 

[JulianC]

Manufacturer's quoted savings of up to 18%

(Mines saving me around 7-8% based on monthly consumption figures compared to the same period 12 months ago - not terribly scientific but I am happy it's working nonetheless)

 

[SolarCity]

I've seen the units.

Have you installed some of these and found an 18% reduction in usage?

 

[SolarCity]

(Mines saving me around 7-8% based on monthly consumption figures compared to the same period 12 months ago - not terribly scientific but I am happy it's working nonetheless)

7-8% is still pretty good - especially as energy prices rise.

 

[JulianC]

Yes, I was pleasantly surprised. With so much scepticism of these units on this site I figured the only way to find out if they really work or not was to try one. As far as I'm concerned, they work.

Not suffered any tripping issues either and I still can't work out why a unit fitted upstream of any RCDs should cause them to trip.

 

[sedgy34]

Yes, I was pleasantly surprised. With so much scepticism of these units on this site I figured the only way to find out if they really work or not was to try one. As far as I'm concerned, they work.

Not suffered any tripping issues either and I still can't work out why a unit fitted upstream of any RCDs should cause them to trip.

is yours the HD unit or normal as i said earlier its omly the hd units that voltis have had problems with

 

[JulianC]

Mine's the HD.

 

[SolarCity]

I think I'll have to install one on my own home and monitor it.

I'd love to see some more real world data to back up manufacturers' claims though. (perhaps from someone that doesn't immediately lose their chin when you ask them for it....)

 

[sedgy34]

Mine's the HD.

Do you have rcd protected circuits in the distribution board

 

[sedgy34]

I think I'll have to install one on my own home and monitor it.

I'd love to see some more real world data to back up manufacturers' claims though. (perhaps from someone that doesn't immediately lose their chin when you ask them for it....)

we didnt get as far as monitoring to prove 18% as the tripping problems occured our customers didnt want the nuissance tripping so we took them out i have a spare was going to put in my house but just havnt got round to doing it yet.

 

[Earthstore]

I can not see why you had any tripping issues, as they are fitted upstream and just drop the incoming voltage down from (in the case of the one I have fitted) from 245v to 220v.
It is running a GSHP and garage block and is working fine.
Maybe there was a fault in the house and the voltage change caused the RCD to trip?