>I have a puzzle going on here. Over the years we have experienced mild
>shocks from time to time when touching the shower valve in a downstairs
>shower with a concrete floor.

I think I can tell you what is going on.

>This place is off grid. It has a lead acid battery bank sitting on a
>rubber mat on the slab. The system is 24 volt. The negative side of the
>dc system, the neutral side of the ac system and the house copper
>plumbing are bonded and grounded to earth.

fine, but is your tower also bonded, or just grounded on its own?

> The wind turbine is a Whisper
>1000 set up for 24 volt charging. It comes in from the tower top as
>three phase ac and is rectified in the house. The 3PH wiring is USE 2
>gauge laying on the ground. The tower is a tilting pipe affair built
>from 2.5 inch galvanized pipe with 4 pairs of guys. All four guys and
>the tower base are grounded to individual ground rods.

that's where your stray voltage is entering the ground. From the wind
generator wiring, through some minor (or major) insulation failure.

Because the tower is grounded but not connected to the grounding system in
the house, the ground itself becomes a part of the circuit. Hence you feel
the tingles. There should be a bonding cable between the tower and the
house grounding system.

>I feel like it is a smal amount
>of energy but can't seem to bleed it off.

a bonding conductor between the tower and the house grounding system will
bleed it off. You have a leakage of current from the alternator to ground
on the tower and it is reaching battery negative via the ground itself
(through you at times). short it out with a direct wire.

Hugh

Scotland (31m/s winds and snow here)
www.scoraig.com



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