mutleybones
Newbie
 Offline
Posts: 42
|
 |
« Reply #15 on: February 28, 2010, 04:34:32 PM » |
|
Hi Billi, I was having a look for the grid-tied systems. Steve. ps, for those of you waiting with bated breaths, the power's back on!  |
|
|
|
|
Logged
|
|
|
|
|
billi
|
|
« Reply #16 on: February 28, 2010, 04:37:09 PM » |
|
Steve
PV grid tie i would not search for on ebay
But speak to Ivan from(the) Navitron as well , he offers good deals on bigger PV Ideas ....
Billi
|
|
|
|
« Last Edit: February 28, 2010, 05:08:20 PM by billi »
|
Logged
|
Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
|
|
|
mutleybones
Newbie
Offline
Posts: 42
|
|
« Reply #17 on: February 28, 2010, 08:21:12 PM » |
|
Hi,
Just been reading a French PV forum, a bl**dy minefield (thanks to the taxman)! Quotes of ~€18k installed for 3kWp, €14k after tax credit - provided you're paying tax, that is. Will investigate whether the CGT on a UK property sale will get us the refund - assuming we manage to sell this year.
Thanks for all info, now need to digest and decide.
Steve.
|
|
|
|
|
Logged
|
|
|
|
mutleybones
Newbie
Offline
Posts: 42
|
|
« Reply #18 on: March 01, 2010, 09:10:30 AM » |
|
Found out Bosch say the freezers, fully stocked and un-opened will survive 54hrs without power, so perhaps not the panic it seemed yesterday. Shame they don't make polytunnels Steve. |
|
|
|
|
Logged
|
|
|
|
|
linesrg
|
|
« Reply #19 on: March 02, 2010, 06:25:38 AM » |
|
Good Morning,
I was looking at a way of using my grid-tie panels in the vent of a blackout.
I had an idea to use my Mastervolt 1500W sine wave inverter off my two battery banks to generate 'mains' and then use this to 'fool' my SMA's that it was incoming mains. I haven't thought out the details and I'd obviously need a suitable switch so that the whole thing was isolated from the normal set-up so I don't export off the property.
I'm sure somebody will tell me that the Mastervolt won't deal with this so I imgaine I'll need to isolate it in some way or is it a complete non-starter?
Regards
Richard
|
|
|
|
|
Logged
|
16off BP380 on a Lorentz tracker connected to 1off SMA SB2500 and 16off Chinese import 80W connected to a Fronius IG15 and 16off BP380 connected to a SWR2000.
|
|
|
|
Ted
|
|
« Reply #20 on: March 02, 2010, 09:19:35 AM » |
|
The SMA's won't be happy with it. Grid-tie inverters have anti-islanding mechanisms designed in so that they cannot 'see' the output from another inverter as the mains.
|
|
|
|
|
Logged
|
Volunteer moderator
6kW Proven turbine, 20 Navitron tube solar, GSHP, WBS, Rayburn wood central heating
|
|
|
|
billi
|
|
« Reply #21 on: March 02, 2010, 09:30:33 AM » |
|
here is another version of an available idea similar to the victron "solarswitch" idea i meantioned earlier http://demo.wolfer-solar.ch/Solsafe/animation.swfBilli |
|
|
|
|
Logged
|
Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
|
|
|
mutleybones
Newbie
Offline
Posts: 42
|
|
« Reply #22 on: March 02, 2010, 10:44:20 AM » |
|
Hi,
I'm a bit tied up over the next few days, but had a quick look at the Sunny Backup, would this work as a stand-alone battery backup without any other Sunny products / PV?
Steve
|
|
|
|
|
Logged
|
|
|
|
|
stephendv
|
|
« Reply #23 on: March 02, 2010, 10:30:40 PM » |
|
It would, but it's overkill for a pure backup solution - if I'm understanding you correctly, you're looking for something to tide you through a power outage without the benefit of solar or wind. If that's what you're after, then a <insert your favourite inverter/charger> + batteries would do the trick. One of the key components of the sunny backup is the transfer switch, which you won't need. Will be more cost effective to get a sunny island + your own batteries.
|
|
|
|
|
Logged
|
|
|
|
|
guydewdney
|
|
« Reply #24 on: March 02, 2010, 11:07:57 PM » |
|
The SMA's won't be happy with it. Grid-tie inverters have anti-islanding mechanisms designed in so that they cannot 'see' the output from another inverter as the mains.
That may well be true with SMA's - but I was having a frank discussion with another manufacturer of GT inverter, and they suggested that it would be very very naughty to fool their inverter using a cheapo pure sine wave one.... not that anyone that they knew had done this - oh no.... very bad.............  |
|
|
|
|
Logged
|
|
|
|
|
stephendv
|
|
« Reply #25 on: March 02, 2010, 11:21:44 PM » |
|
The SMA's won't be happy with it. Grid-tie inverters have anti-islanding mechanisms designed in so that they cannot 'see' the output from another inverter as the mains.
You can configure the Sunny Boys to work in off-grid mode which will let them sync to other inverter outputs. This mode basically tells the SB not to care about the grid impedance and just connect based on frequency and voltage. |
|
|
|
|
Logged
|
|
|
|
|
Outtasight
|
|
« Reply #26 on: March 03, 2010, 08:14:28 PM » |
|
Just put a lock or something on the car as otherwise the mains will go off and you'll go out to the shed to find that not only has the battery died but someone's made off with your "generator on wheels" coz it had the keys in the ignition...
|
|
|
|
|
Logged
|
|
|
|
|
|
|
billi
|
|
« Reply #28 on: March 05, 2010, 09:19:17 AM » |
|
Hi i know of them and first thought great But on the other hand i prefer components to be separate in case something has to be repaired , beside that someone whispered the price to me ( over 7500 Euro  ) Billi |
|
|
|
« Last Edit: March 05, 2010, 09:21:59 AM by billi »
|
Logged
|
Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
|
|
|
mutleybones
Newbie
Offline
Posts: 42
|
|
« Reply #29 on: March 05, 2010, 09:48:02 AM » |
|
Eeek!
|
|
|
|
|
Logged
|
|
|
|
|
