DIY - Home Solar - Partially getting off the Grid More Safely

I've updated my system by adding more components, this is to bring various parts of my house (mainly my home office) off the grid. I now have dual MPPT charge controllers, 2 new 200W (400W in series) panels. This will give me 670Watts total capability. I've also included more safety features such as equipment grounding, and better disconnect switches. Safety is critical when dealing with any type of electricity. I'll include a link to my new schematic diagram for any who wish to see a diagram of the component layout. Any questions or comments please feel free to leave a note or two.

Other useful links;
http://photovoltaics.sandia.gov/docs/PDF/Stand%20Alone.pdf
http://photovoltaics.sandia.gov/docs/PDF/98TLREF13.pdf

Link to schematic:
http://dc415.4shared.com/download/8AY9fWS2/24Volt_Solar_Partial_Off-Grid_.jpeg

Category:

Education

Tags:

• DIY
• Home
• Solar
• Power
• renewable
• energy
• Panels
• rhandsom
• MourningStar
• MPPT
• Charge
• Controllers
• Dual
• Configuration
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• Bank
• 24Volt
• System
• Watts
• Amps
• Safety
• Off
• Grid
• Inverters
• Backup
• Hybrid
• SHFT
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• Wiring
• Parallel
• serial
• How-To
• Transfer
• Switch
• NEC
• electricity
• Photovoltaic
• projects
• utility
• Aims
• Optima
• AGM
• layout
• Schematic
• grounding
• multiple
• trimetric
• monitor
• disconnect
• fuses
• tie
• fun
• prepare
• disaster
• clean
• free
• power
• switches
• wiring
• small
• Sun
• components

[Prancinglion1]

well done. Of course you know I'm simply yanking your chain. It actually looks like a well thought out system, and a lot of "Guy Fun" to put together.

[rhandsom]

@Prancinglion1 Thanks, yes I know you were just kidding. Also, it was a very fun thing to do. Take Care.

[Prancinglion1]

Wow... seems a bit convaluted. Beware of the uranium isotope 141.

[rhandsom]

@Prancinglion1 Your right it can seem a bit convaluted, but it does work. Take Care.

[jesus77755]

Outstanding video, very informative! Thanks for sharing.

God Bless!

[rhandsom]

@jesus77755 Thank you for your comments. God Bless and Take Care.

[rhandsom]

@abenwinUT The website is speaking in general terms in relation to the numbers, and is using those numbers as examples. Not all MPPT controllers use the same algorithm to determine the max power point thus making the DC to DC conversion different for each, but generally you can reasonably expect a 30% boost from good controllers. The main point of mppt's is that watts in = watts out, they lower the voltage to increase amps, decrease amps to increase voltage, the power (watts) stays the same.

[abenwinUT]

@rhandsom the full url is wwwdotwindsundotcomslashCharge­ControlsslashMPPTdothtm

[abenwinUT]

@rhandsom if that is the case, would your 12.8a be 15a? Since you have 2 200w panels at 7.62a? Like I say, I am a novice.

[abenwinUT]

@rhandsom this is from wwwdotwindsundotcom