13kw SunPower at $4.07

[rsilvers]

Lowest SunPower quote I got in MA was $4.3, and that was a 20kw system.

[kingofbanff]

Damn, would love to get that price. Best I have gotten in Socal for SunPower/SolarEdge is $4.81/watt so far...

Edit: Just got an updated quote for $4.53/watt. Not terrible... but it's not $4.07. I'm sure location plays a part in the price. Did you end up signing at that price? Or did it creep?

. I'm at $4.76 per watt now. I did have some fairly specialized tweaking so there might of been some extra design cost built into that.

[J.P.M.]

Your comment makes no sense, not that I care.

Get your meds adjusted and have a nice life. After 2 1/2 years around here, you'll be the second addition to my ignore list, not that you care.

[zed]

.................

[J.P.M.]

Hmmm...so what?

I am trying to be polite in not saying sunpower is a rip off

Well, it usually is compared to other stuff as most folks know or find out . Polite's got nothing to do with it.

[zed]

...

[sensij]

In Australia we are paying around $2/watt for solar grid feed systems.

that's $US1.40 per watt including the inverters and wiring.
.

Ummm... this thread is fairly specific to Sunpower pricing. Try to pay attention.

[zed]

...

[meg]

i am in orlando Florida. What is the going rate for the creation and installion of solar water heater panels

[Noblesoft]

That's the quote. We will see if there is price creep.

Denver.

Damn, would love to get that price. Best I have gotten in Socal for SunPower/SolarEdge is $4.81/watt so far...

Edit: Just got an updated quote for $4.53/watt. Not terrible... but it's not $4.07. I'm sure location plays a part in the price. Did you end up signing at that price? Or did it creep?

[ButchDeal]

I have a 200 amp main panel and a 100 amp subpanel. I will be using outback Radian 4000 W and outback Radian 8000 W. The output of the smaller inverter seems to be 16 A and the larger 33 A. So if I push the smaller inverter to the smaller panel I'm within the 120% rule. And then I push the output from the larger inverter to the 200 amp panel.

Could this work? Or am I just showing exactly how little I know about this!

most likely not.
There should be one interconnect. Also the radians have two AC connections and are bimodal. Is the sub panel to be the backup panel or is there to be another panel for that. I think you need a 40a breaker on the grid side
So with bimodal and two inverters, and an existing sub panel, you need to do a lot more design before anyone can tell you if it will work or not

some reading: http://www.outbackpower.com/download...8a_install.pdf

[kingofbanff]

If the PV backfeed is into a sub panel you may or may not need to upgrade that panel, but if your main panel is 200A and the backfeed is more than 40A you may need to upgrade the main panel and maybe your utility service.
(Most POCOs will allow you to upsize the panel and keep the same service size. Los Angeles LADWP will be totally anal about it and insist that you match the service size to the panel size even if you use a main in the new panel which is no larger than your old service size.)
The details of what is required at the main panel are more than I want to go into here. Check the stickies and post a new question if you do not find the answer you need.

I have a 200 amp main panel and a 100 amp subpanel. I will be using outback Radian 4000 W and outback Radian 8000 W. The output of the smaller inverter seems to be 16 A and the larger 33 A. So if I push the smaller inverter to the smaller panel I'm within the 120% rule. And then I push the output from the larger inverter to the 200 amp panel.

Could this work? Or am I just showing exactly how little I know about this!

[kingofbanff]

Did your installer offer a price quote on any other panels?

No it's the only brand they carry. I have limited roof space so the higher wattage per panel is helpful.

[Yaryman]

That's the quote. We will see if there is price creep.

Denver.

Did your installer offer a price quote on any other panels?

[DaveDE2]

It's always seemed counterintuitive and kind of silly to me that adding solar in order to reduce electrical use from the grid could require a panel upgrade, ie; one that can handle even more current from the grid. I know the reason why this is sometimes required, 120% electrical panel rule and all, but still it seems like a backwards move and should be avoided if at all possible. A local PV installer recommended that I get a panel upgrade from my 200A panel to something higher in order to accomodate my 13kW PV system. Instead, I'm just going with a line side tap that my local jurisdiction has approved.