Learning about Direct Coupling [RE-wrenches]

[Brad Bassett]

Mark,

My understanding is that NexTek has a controller/inverter they use for 
the interface with the grid power. I would just ask them.

Brad


Mark Robinson wrote:
> I need to become an 'instant expert' on Direct Coupling of PV to 
> lighting
> loads in commercial buildings. Has anybody had any experience with this?
> Anybody want to learn with me?
> 
> NexTek Power creates an AC/DC ballast that powers flourescent lighting 
> on AC
> or DC.
> 
> Efficiency Concerns: No Inverter increases efficiency. Getting power 
> from
> the panels at low light, before an inverter would kick on. More 
> efficient
> ballasts. What kind of low power losses are we seeing in panels before 
> the
> inverter comes on?
> 
> Installation Concerns: No Grid-tie approvals. What about DC wiring? DC
> switching?
> 
> Other concerns?
> 
> Will welcome any feedback on or off-list.
> 
> Thanks,
> Mark Robinson
> The Energy Grid
> Mark at TheEnergyGrid.com
> 
> 
> 



Brad Bassett
Schott Applied Power 
Tumwater, WA office
bsbassett at earthlink.net

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