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Re: [APD] [Off-Topic] Supplementing Electricity with Solar



Interesting thought.  Too late for me ;)

On 2/6/2006 8:17 PM Jerry Baker said the following:

>Mike Szilard wrote:
>  
>
>>Jerry,
>>That's exactly what I've got.  And part of the protective circuit is the 
>>fact that the inverter, even while connected to the grid, is powered off 
>>the solar panels.  No sun...no power.
>>    
>>
>
>It seems that for really small-scale projects (like offsetting aaquarium 
>lights), it's probably cheaper to transform the mains AC to DC and then 
>feed that power and the solar panels' power into an inverter to get it 
>back to AC. All you need is a transformer and an inverter.
>
>
>
>------MAIN---||TRANSFORMER||-------||INVERTER||-----> Aquarium
>                               |
>                               |
>------SOLAR-------------------
>
>That way I could just slap some panels on the roof (like only 150W) and 
>run the wire down the wall to the aquarium stand where it would meet the 
>output from the transformer. No hassle with the breaker panel or 
>synchronizing phase with the main. Assuming transformer efficiency of 
>95% and an inverter efficiency of 90%, I still save a net of 100W power 
>from the main.
>
>  
>

-- 
Mike Szilard


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