tanoshimini
Solar Enthusiast
- Joined
- Mar 28, 2021
- Messages
- 110
Well, so far it's just eavesdropping, but the talking will probably get going tonight.that’s awesome!! glad you got the teensy talking with the daly BMS. fun!!
Will do. I expect I'll put up a GitHub project later this week, after I knock the kinks out.Please feel free to share data samples or whatever, i’m currently learning about CAN and i2c and uart for energy storage inter-device communication
Most of it... I think you still need an interface chip to finish up the job, but it's just a couple of wires.so cool that the teensy has a CAN transceiver built in
They estimated somewhere in the $30-40k range. We have a really long driveway, and would need transformers and poles and we'd have to draw up a utility easement, etc. etc. etc.Was the cost the utility company wanted to bring service ever mentioned in this thread?
That is just capital cost. Then there is the operating cost. My back of the envelope estimate is about $0.5 -0.10 per kWhr for my system. That number can vary depending on the life expectancy of inverters, panels and batteries.All in, with inverters and all the fixin's, I should come in at well under $20k. The panels will be more, but will still leave us well under their estimate.
That is just capital cost. Then there is the operating cost. My back of the envelope estimate is about $0.5 -0.10 per kWhr for my system. That number can vary depending on the life expectancy of inverters, panels and batteries.
Absolutely guaranteed to increase. I'm in California and my highest rate is $0.51 per kWhr. I don't have a choice about having a connection but I do have a choice about when I buy power and how much I buy. Other than a monthly fixed charge, I have eliminated other utility costs.Higher and virtually guaranteed to increase.
...those poles and transformers all come with the promise of a monthly bill, too, and no guarantee against power cuts in the winter (it happens here alot.) Using the grid, on this particular property makes very little sense when batteries and solar are becoming so cheap. Whatever it shakes out to, it'll be less than the grid hookup by a country mile.That is just capital cost. Then there is the operating cost. My back of the envelope estimate is about $0.5 -0.10 per kWhr for my system. That number can vary depending on the life expectancy of inverters, panels and batteries.
Have you seen this Daly bms interface layer on Github?I've made a breakthrough in my attempts to directly communicate with the Daly SmartBMS (16s/150a) over it's UART port.
No. It'll live in the great outdoors, on a concrete pad. The boxes have 2" of insulation, a radiant barrier and will be fitted with some heating elements between the packs before winter.Is this system going in an out building (shed) that's temp controlled?
You can bury the entire line with transformer at the end, how long of a driveway are we talking?They estimated somewhere in the $30-40k range. We have a really long driveway, and would need transformers and poles and we'd have to draw up a utility easement, etc. etc. etc.
All in, with inverters and all the fixin's, I should come in at well under $20k. The panels will be more, but will still leave us well under their estimate.
I used the app "FindTower" to get locations. Give it a try?If you have a source for cell tower locations, let me know. I've not been able to find that data.