Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Are my solar calculations right?
- Thread starter dru8923
- Start date
- Thread starter
- #2
No.
You assume that you get 8 full hrs at 30 W, which is a bad assumption. During the summer, on shore flow ("Coastal Eddie") only gives you about 4 hrs of full sunlight. During the winter, you may (will) get much less than 4 hrs of effective solar charging. I think you need to do more research to determine the available sunlight conditions and size accordingly.
You blithely assume that you're going to get sunlight every day. Are you living in the same Los Angeles that I do? I would assume needing to ride out a minimum of 4 days of no sun on batteries and size accordingly. But, I'd suggest that you find some historical data to get some basis for making your decisions.
You also assume that you're magically storing your 8 hrs of solar energy in a perfect storage medium. Package that, sell it, and make a fortune. Your batteries will require a charger during the solar charging time. You'll need a converter/regulator to get the desired operating voltage for your transmitter. All these consume their own power.
What's the consequence of not transmitting? You may need backup or redundant power.
TTFN
You assume that you get 8 full hrs at 30 W, which is a bad assumption. During the summer, on shore flow ("Coastal Eddie") only gives you about 4 hrs of full sunlight. During the winter, you may (will) get much less than 4 hrs of effective solar charging. I think you need to do more research to determine the available sunlight conditions and size accordingly.
You blithely assume that you're going to get sunlight every day. Are you living in the same Los Angeles that I do? I would assume needing to ride out a minimum of 4 days of no sun on batteries and size accordingly. But, I'd suggest that you find some historical data to get some basis for making your decisions.
You also assume that you're magically storing your 8 hrs of solar energy in a perfect storage medium. Package that, sell it, and make a fortune. Your batteries will require a charger during the solar charging time. You'll need a converter/regulator to get the desired operating voltage for your transmitter. All these consume their own power.
What's the consequence of not transmitting? You may need backup or redundant power.
TTFN
- Status
Similar threads
- Locked
- Question
- Locked
- Question
- Locked
- Question
- Locked
- Question