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  1. Ampster

    Using nema 10-50 connector with single phase for Tesla charging?

    If I were doing that, instead of risking that I would mess up the device that tells the Mobile Connector the kind of plug I was using which might disable the Mobile Connector for that plug, I would make a pigtail to a TT30 receptacle. That does not test the assumption that you can charge at a...
  2. Ampster

    Nem 2 last day to install?

    It tyically is one of the Investor Owned Utilities that make that decision. It would be determined by the status of your application with them and whether it was tentatively approved. Perhaps the structural issues resulted in changes in your application which caused the initial date to be reset...
  3. Ampster

    Whats more energy efficient: Off-grid or Grid-tie ?

    That is the way I look at it except for Non Bypassable Charges which cost me $0.025 per kWh which is still less expensive than a battery. I do use the grid as a seasonal battery because my winter loads are high when my production is low. I also use a traditional battery to do peak shaving...
  4. Ampster

    Solar Assistant assistant

    That is what I started doing before I got sidetracked. Eventually I am going to revive that project because Home Assistant interfaces with some other home automation devices which I have. I can do simple relay logic programming but have no desire to learn Perl at this time in my life.
  5. Ampster

    Using nema 10-50 connector with single phase for Tesla charging?

    There are two versions of the mobile connector and if I remember correctly the adapter cable is different for each version. I also remember that the adapters had a resister or other device in them that told the mobile connector what current to set the Tesla at. I don't know if it also tells it...
  6. Ampster

    The new "My Sol-Ark" App and Migration to AWS is happening very soon.

    Do you have a link to that Webinar? I did not find it on the SolArk listing of Webinars. I did hear that it was delayed for a couple of weeks. My PVPro is still working.
  7. Ampster

    Proper Gauge 100ft run

    What kind of current and voltage are you seeing at the panels? Buying 8 guage is a waste of money if your panels are not putting out more than 30 Amps and your voltage is safely above the minimum for your charge controller.
  8. Ampster

    Peak vs. continuous power (Enphase)

    And if you go to larger micros the number of micros per string will be reduced so that will also mean more work restringing. Have you done a comparision on PV Watts seeing what the increase in annual production would be and quantified that into a payback of the cost in dollars and time on the...
  9. Ampster

    I am always fantasizing about having a energy efficient air conditioner for van life, anyone seen any concepts in tech news or anything?

    Most efficient inverter driven units run the compressor all the time, but at lower levels of power so the result is the same without the start up surge. I suppose that is one way they achieve the higher efficiecy numbers.
  10. Ampster

    Using nema 10-50 connector with single phase for Tesla charging?

    I agree. In the larger scheme of things, my main service panel is 240 volt split phase and my AC coupled micros are actually 240 volt single phase with no neutral so whatever I can do at 240 volts is a lot more efficient. I iactually rarely charge my EV from the hybrid inverter but I do charge...
  11. Ampster

    Using nema 10-50 connector with single phase for Tesla charging?

    Because 240 Volts is more efficient and for the typical split phase inverter it is balanced between the legs. Many split phase inverters cannot handle 60 Amps of unbalanced load.
  12. Ampster

    The new "My Sol-Ark" App and Migration to AWS is happening very soon.

    It is probably too late to worry about where it is in PVPro. We will have to wait until the data is migrated. I also see current production of my AC coupled solar on the new icon as mentioned earlier. I use Solar Assistant and that is where I track cumulative totals for DC and AC coupled solar...
  13. Ampster

    Proper Gauge 100ft run

    How many Amps and what voltage does your panel(s) put out. If you are anywhere near minimum voltage for the inverter you may need to calculate voltage drop over that distance using the voltage drop calculator posted earlier. The wire should be sized to carry the current at minimum and if voltage...
  14. Ampster

    The new "My Sol-Ark" App and Migration to AWS is happening very soon.

    I must be at the back end of transitioning. Still have PVPro data and none yet in MySolArk. I am on the Left Coast.
  15. Ampster

    Adding storage to my Enphase system

    As far as I can tell, very few individuals have applied and gone through the application process. Some solar companies are very adept at doing that because they can make a profit. PG&E advertised it as if it is their program but it started with the CEC and there may be more future funding beyond...
  16. Ampster

    Adding storage to my Enphase system

    That is a good strategy, and one I am relying on. I found a PG&E document that explicitly allows backup as long as it is behind a "break before make" switch. I have not added that switch yet because it was not on my permitted plans with my County. But if ever questioned, I can easily install the...
  17. Ampster

    Adding storage to my Enphase system

    Yes there is still some equity resilience money in SGIP for fire risk and medical equipment needs. My neighbor got his batteries reimbursed because he has a CPAC machine. It can be as much as $0.75 a Watt hour. Yes PG&E administers it and I believe you sign a paired storage agreement that allows...
  18. Ampster

    Adding storage to my Enphase system

    Are you trying for an SGIP grant? I do not see any advantage in having PG&E know about my battery unless I am getting some subsidy or incentive. I am sure if I emailed or called them about it, they would tell me that I have to apply to get permission to install a battery system. I do have an...
  19. Ampster

    Adding storage to my Enphase system

    I have not heard of anyone getting fined either. It does not look like you are on a paired storage plan because SCE does not know about your batteries, correct? The users who have reported that any credits above the cap in kWhs is only forfeited not fined. In my friends case, the message about...
  20. Ampster

    Adding storage to my Enphase system

    Thanks for the details. Are you on a paired storage arrangement with SCE? The reason I asked, is a friend in SCE got a notice that his export was capped. However the amount shown as forfeited was the same as that month's export and the math on his bill actually showed full credit for the export...
  21. Ampster

    What do you use for asphalt shingle roof penetration?

    If a pipe boot works for plumbing and other rooftop electrical, why do you think it would not work for solar electrical in a conduit?
  22. Ampster

    Point South no mater what or middle of available solar path?

    The best production in kWhs is South facing. In my situation the rate paid for export goes up significangtly after 4PM so economically there is an advantage to have some West facing panels. It all depends on where you are standing.
  23. Ampster

    Are this Genuine EVE 304AH Batteries?

    I was posting it for the benefit of @Anthony0488 . I am a fan of parallel cells but as I mentioned my Grade B cells did not stay balanced with the Orion meager balancing current without significantly reducing voltage and thus capacity. Even then I only charged to 3.45 volts per cell. My pack...
  24. Ampster

    Are this Genuine EVE 304AH Batteries?

    I used Orion BMSs since 2015 until last month, when I converted from a DIY pack to some Pytes rack mount batteries. I had Grade B cells in a 3P16S configuration and they needed more balancing current than the Orion could provide so I disabled the balancing on the Orion and used a 1 Amp JK active...
  25. Ampster

    Is there a site that displays yearly solar path for a given GPS coordinate?

    On the solstice, June 21 the azimuth will be 23.5 so the perfect angle on that day for your Latitude would be tilted 8 degrees North off horizontal. Either way you want a few degrees tilt to allow water to run off and not allow silt to collect at the edges where the panel glass meets the frame.
  26. Ampster

    What cable for Solar Assistant to connect to EG4 battery?

    Does the smart shunt interface with your inverter and or Solar Assistant? That is important if you want the inverter to use the smart shunt values.
  27. Ampster

    Are this Genuine EVE 304AH Batteries?

    I think counterfeit is a strong indictment for a cell that is probably a genuine Grade B EVE cell.
  28. Ampster

    SCE message on bill about export being forfeited is incorrect.

    Finally, I got a full copy of my friend's bill and despite the message that his export had been capped, the math said otherwise. I have corrected the title to this thread and the issue is closed.
  29. Ampster

    What do you use for asphalt shingle roof penetration?

    I used a Soladeck for the transition from PV cables to interior wiring for my Enphase system which had two strings. It had room for connectors for the change in wire type and a convenient place to check voltage when on the roof. On an earlier installation where I only had one circuit I used an...
  30. Ampster

    SCE message on bill about export being forfeited is incorrect.

    An update on this ongoing saga. I did a Google search and discovered a thread that I actually participated in the discussion back in 2021 on another forum. In that case SCE confirmed that the message was in error and that poster confirmed that there was no deduction from the totals despite what...
  31. Ampster

    What cable for Solar Assistant to connect to EG4 battery?

    I connected Solar Assistant to my SolArk so I would get data from the inverter about loads, the grid and other useful information. The battery connected to my Solar through another cable but both cables were joined by a splitter so that the battery information could get to the SolArk for...
  32. Ampster

    SCE message on bill about export being forfeited is incorrect.

    As this story unfolds, I now understand that my friend's bill showed net generation of 504 kWhs and that total was forfeited. There is something wrong with that math since it is virtual curtailment of all his export, not just some amount over and above some paired storage limit.
  33. Ampster

    What voltage to start balancing?

    That is 3.55 per cell and much higher than the typical 3.4 volts in which most BMSs start balancing. My Orion BMS was user adjustable but because of the size of the 3P16S pack I disabled balanceing on the Orion and used a 1 Amp active balancer which used 3.4 volts per cell as the balancing start...
  34. Ampster

    Non electric lighting

    The electric lightbulb changed all kinds of work sleep patterns around the world. Before that it was candles, whale oil and kerosene. Actually an ironic episode was that Rockefeller was opposed to the electric light bulb, because up until then his fortune was based on cornering the market for...
  35. Ampster

    SCE message on bill about export being forfeited is incorrect.

    He has finally looked at the details and it seems it has been going on for at least a year. I think it is mostly a case of not paying attention. I encouraged him to charge his EVs from excess solar during the day and charge his battery storage from solar and change programming to favor more self...
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