4Kw stream panels advice please

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Re: 4Kw stream panels advice please

Postby bootsnall » Sun Apr 10, 2011 7:07 pm

I have exercised my 10 day cooling off period and canceled the contract with Blue Sky Solar Energy and I am now looking at the following options on a tile roof in Brisbane @ 20 degree slope WEST facing 270 degrees (only choice :-( sadly with around 12 % loss)

Any further feedback would be appreciated. You guys are awesome with your knowledge and I really appreciate what you have given me. I do not feel deterred by the western orientation as it certainly appears to out-perform the eastern here in Brisbane.

Option 1 4.2 Kw $21485.00 Australian Natural Energy (RECs X 5)
20 X Sanyo HIT. 210W Mono-Crystalline Silicon Solar Panel, DC output, high efficiency cell
of 18.9% and module of 16.7%. Dimensions 1580mm x 798mm x 35mm, Weight
15.5kg, 25 year power output warranty.
SMA 4000W Transformer Less Inverter with LCD display, 4200W maximum DC input,
240V output, 97.0% efficiency, Dimensions W-470 x H-445 x D-180, 5 year warranty.

Option 2 4.18 Kw $13950.00 Australian Natural Energy (RECs X 5)
22 X Suntech 190W Mono-Crystalline Silicon Solar Panel, 24V DC output, high efficiency
14.1%, Dimensions 1580mm x 808mm x 35mm, Weight 15.5kg, 25 year power output
warranty.
SMA 4000W Transformer Less Inverter with LCD display, 4200W maximum DC input,
240V output, 97.0% efficiency, Dimensions W-470 x H-445 x D-180, 5 year warranty.

Option 3 4.7 KW $17799.00 Energy Matters (RECs X 4) Installation after 30 June 2011
20 X REC Solar REC235PE-BLK Sanyo HIT panels (18.5% cell efficiency)
SMA SB5000TL-20

Option 4 4.23 KW $14599.00 Energy Matters (RECs X 4) Installation after 30 June 2011
18 X REC Solar REC235PE-BLK Sanyo HIT panels (18.5% cell efficiency)
SMA SB4000TL-20

Option 5 4.23 Kw $14999.00 Blue Sky Energy (RECs x 5)
18 X Solarig Stream 235 Kw 17.5% cell efficiency
Diehl AKO 4600 S
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Re: 4Kw stream panels advice please

Postby karlajensen » Sun Apr 10, 2011 9:51 pm

Option 1 would be nice but at $6K+ out of the park makes it very difficult to justify indeed.

Need some clarity on the EM quote are you getting HIT's or REC's
both a good panels but no-one debates the HIT's are pretty much the best performing panel, but quite a premium for it.

Lets take option 2 as the best price shown $13950 (nothing wrong with that quote!)
annual energy output will be 4.18 x roughly (I cant be bothered lookoing it up) 5KW/KW installed panels /day
thus 7600KWhrs anually.
vs
EM's 4.7KW for $17800. will make 8577KW/hrs anually.
Assuming you feed that in to the grid (which you will!) at PFIT rates -0.44c/kwhr this system pays back an additional $430 a year meaning the gap will take 8.8 years to close.
Assuming a system life of 20 years is not unreasonable, during that time EM option for 4.7Kwhr
payes you back an additional $5160.

Where it can be justified (space / available funds etc) my advise is always the same.
Put as much as you can possibly afford 1st time as going back sucks for everyone concerned -especially the bloke paying for it.

now -something else to consider 5x multiplier for jo blo trading in the market now is worth comparitivly
150 recs vs 120 recs
150 x current market rates $30 = $4500
120x hedged rate (that most big installers like EM have done) = $36 =$4320

SO there isnt as much in the multiplier dropping as you might think.

If it were me I'd be asking for some pencil sharpening -round figuers like $14999 and $18999
dont ring well with me as nothing ever works out like that.

Can you fit 21 or 22 panels on the roof? the 5000TL will take them and PFIT cap is 30KW,
I'd be cramming as much on East/West you name it :lol:

Solarfun/Solarone a closer comparison to the Suntech panels than REC as far as performance goes
perhaps a price on those from EM to get it down from 8 years payback to 5 years payback
ie in the order of $16500-17K with the 5000TL and say 24 Solarone 195W panels......

So things you're asking -what is price NO STC/REC and then you can calculate the value of the "bonus"
instead of having no idea like the example I showed above.
8E + 8W + 8Nth Garage CMS2000-1 with ~4500W in 3 strings of 8.
Fronius Galvo 3.0 inverter with ~6.6kW panels
12x ZNShine + 12x 180W Solarfuns both NW + ZNShine 12x190 facing SE.
Edwards Solar Hot water


Luck Favours the well prepared.
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Re: 4Kw stream panels advice please

Postby bootsnall » Mon Apr 11, 2011 10:39 am

Option 3 should be
20 x 235w Sanyo HIT panels 18.5% efficiency

Option 4 should be
18 X 235w Sanyo HIT panels 18.5% efficiency

Sorry for mistakes :-)
Barry
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Re: 4Kw stream panels advice please

Postby bootsnall » Mon Apr 11, 2011 1:47 pm

Option 3 RECs are -$7735 leaving $10064 for panels, inverter, installation

Option 4 RECS are -$7420 leaving $7179 for panels, inverter, installation
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Re: 4Kw stream panels advice please

Postby karlajensen » Tue Apr 12, 2011 12:10 am

20x HIT's win hands down my friend best performance to price ratio, regardless of upfront few extra bucks.
if you cant afford them, get a price on the REC panels from
EM which are less expensive but still a good panel.
8E + 8W + 8Nth Garage CMS2000-1 with ~4500W in 3 strings of 8.
Fronius Galvo 3.0 inverter with ~6.6kW panels
12x ZNShine + 12x 180W Solarfuns both NW + ZNShine 12x190 facing SE.
Edwards Solar Hot water


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