Re: [RE-wrenches] PV Modules Compatible with Concrete tile roofs

2010-09-02 Thread benn kilburn
Peter,I did a 15kW BIPV install on a home with GE Geko modules in two stages, first (7.7kW) in 2006, and second (7.33kW) in 2008. The 2006 modules were 55 W and the 2008 mods were 66 W. I wasn't too impressed with the quality of the GE modules and would prefer not to use them again, which is

Re: [RE-wrenches] Delta LA's

2010-09-02 Thread Bill Brooks
David, They are supposed to be mounted outside boxes so that you can clearly see when they have been used up. Sand makes glass that expands and breaks the plastic. They used to be porcelain for the very same reason. If you are concerned about unqualified people coming in contact with

Re: [RE-wrenches] Micro-Inverter Vs Central Inverters $150 Design Challenge

2010-09-02 Thread Nick Soleil
Hi Ryan: I don't want to take your money, but I am sure I could, if I had the time to waste. I have issues with Enphase, too, and I am very aware of the drawbacks, but they are not nearly as extreme as you make them sound. You did not even mention the #1 reason to use Enphase, however,

Re: [RE-wrenches] modules and inverter poll

2010-09-02 Thread Nick Soleil
SunPower. Highest efficiency, Most Attractive, Best Producing Enphase or SMA- Most Reliable, High Efficiency, Great Support, and familiar Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax:

Re: [RE-wrenches] Delta LA's

2010-09-02 Thread R Ray Walters
I know, as Bill pointed out, that the Deltas are supposed to be mounted on the exterior to allow the damage to stay outside of the combiner box. But I've also seen a lot of old Deltas damaged by the sun, and seen them cracked off at the 1/2 nipple attachment point, which then leaves exposed

Re: [RE-wrenches] AC to AC syncrhonizer for hydro plant.

2010-09-02 Thread jay peltz
Hi Jeremy, They'll need a lot more than that. I suggest you contact Thompson and Howe, they make control systems for grid direct hydros. http://www.smallhydropower.com/thes.html You might also have to contact Canyon industries about the right motor and drive parts. http://www.canyonhydro.com/

Re: [RE-wrenches] AC to AC syncrhonizer for hydro plant.

2010-09-02 Thread David Katz
Jeremy, You can use a PV Powered inverter if the Hydro is in range of the sizes they make. You just need to rectifiy the AC output of the hydro. They are very tolerant of spikes and load changes in the house. You will also need a device to prevent the voltage from exceeding the maximum

Re: [RE-wrenches] AC to AC syncrhonizer for hydro plant.

2010-09-02 Thread Richard L Ratico
Jeremy, Not sure if this would work. but How about feeding the hydro output into a large industrial battery charger or chargers. They are available in three phase. Modify the charger by eliminating the stepdown transformer. Basically what you need is a rectifier. Then feed the resulting

Re: [RE-wrenches] AC to AC syncrhonizer for hydro plant.

2010-09-02 Thread Darryl Thayer
If the hydro is small I think I would try rectifying and putting into a charge controller.  and then use an Outback to make grid power.  (GFX)  Each charge controller would need its own rectifier.  never parallel charge controllers on the DC input side.  This is only helpful if the hydro can