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Go Solar

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Go Solar last won the day on September 26 2017

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  1. Go Solar

    CFE stops solar credits

    As mentioned in the other newer thread on this, the solar credit system continues and should be shown back on the bills by the end of this year. In addition, we're now hearing that net-metering users may even have the option of selling their annual excess production to the utility. TBD. Current payback for a DAC user is in the 4 year range and system costs have never been lower and should continue in that direction given current industry forecasts. And the CFE rate structure is configured to help the less advantaged low users, while charging more for higher consumption - so one could view THAT as already being a progressive tax, that is in place. Certainly encourages conservation and / or clean energy generation, both of which are good things.
  2. Go Solar

    CFE solar credit system update

    This article was published Thursday, no details as yet, basically it confirms what many were asking about earlier this year and last year - that small users will have the option of choosing either net metering (the current practice) or net-billing / selling energy to CFE. http://elfinanciero.com.mx/economia/cfe-desiste-de-amparo-contra-la-generacion-distribuida-de-cre Almost certainly, the best way to go for those in DAC would be to continue with net metering unless the Feed In Tariff rate paid is VERY attractive,; more will be known as the details are unveiled.
  3. Go Solar

    CFE solar credit system update

    mexjerry, the CFE solar bill has two lines of kWh, with 2 values each, for the "previous" and "current" readings. (the CFE meters display 2 sets of kWh values) The 1st row is "use from CFE", the 2nd row is "sent to CFE". Your bill, or credit, is based on "the difference between the differences". So if line 1 shows 1100 and 1000, while line 2 shows 900 and 850, you'd have use of 100, and "sent" of 50, on this current bill, for a net use of 50 kWh from CFE. If line 2 difference works out higher than line 1, you'll have a credit and the minimum current billing of about 46 pesos incl IVA. The CFE bill does NOT tell you your actual solar production, you have to get that info from your inverter / monitoring system.
  4. The CFE billing format changes have raised many questions from solar and other users all over the country, here's an update that reinforces all is well; Last week a well placed contact heard from a reliable source that the CRE (Comisión Reguladora de Energía) has requested the CFE to again show the kWh bank energy info on the bills. We are now anticipating the authorities would publish that in the DOF (Diario Oficial de la Federación) and from that point, CFE would have 100 days to change that in their systems. So.....with that, by the end of this year, the energy balance should appear again on the bills. The energy credits are still accumulating in CFE system for 12 months, and it may be possible to obtain this info at the CFE office on an individual basis in the interim.
  5. More info on both the generator type / specs, and your electrical service and panel type, is needed in order to advise you - and possibly / probably best to have a good electrician check it for you, it could save you $$.
  6. 1 - if you have a MXN bank account in pesos and an ATM card, you can pull CDN $$ at a CDN ATM at not bad rates once you're there - just like many do the other way, when in Chapala. 2 - there are exchange houses in Ottawa and Toronto, if you really want to bother with it - and you can often ask for & get a better than posted rate if exchanging 10 to 20 K pesos or more.
  7. Go Solar

    Swimming Pool Heater

    As John says, buying and installing an electric heater is no problem. However, be warned - nothing uses more energy than heating water. We've seen many electric heat pump and electric heater users stop using them after the 1st CFE bill.....even condos, where many share the bill. What size is the pool, and do you have a good cover on it? You may be much better off adding more solar pool panels, and a cover, to keep the extra heat made the day before, overnight, for your morning swim.
  8. Would suggest all of these: 1 - check your CFE meter readings (both #'s, "use" and "sent") both AM and PM to see what is happening both in the day, and at night, net-use or credit wise. 2 - check your inverter(s) daily production figures on the display or online, and also the real time wattage figures in good sun conditions against what you know is the norm (sounds like you have a 2.5 kW size system, approx, so 2000 watts AC or so should be being produced in good sun) 3 - have your system checked by your installer or other qualified provider. Yes, the grid power issues could have caused a partial malfunction, hence # 3.
  9. Embombinados Garcia Pérez, 765-2626. In Riberas on north side of the carraterra, on the lateral (side road) just west of the big steel yard. Sales & service of all types of water pumps, filters, and UV treatment.
  10. Go Solar

    Solar water heater

    Appears there might be some confusion, the OP mentioned this: "Removing 20 tubes, glued in with silicone is not a fun job, I broke several tubes in the process." GLUED IN.....yep, that would make it pretty tough to remove them.
  11. Go Solar

    Digital CFE meters and solar

    Show them this then, with a smile:
  12. Can you elaborate on what my issue may be?  I had a lab test the water and it is 6.5.   Ron of solar technology seems to think it is the manifold inside the tank.   My neighbor has a similar system also 2 years old and no problems.  Plus I have never obtained the so called "hot water".   It is always lukewarm, never hot.  My warranty covers the tank, frame and tubes but another warranty sent to me states "the warranty is void if the water is under 6.5.  That is what they are claiming to avoid any further service.



  13. Go Solar

    Digital CFE meters and solar

    SunFan, you can still work out a daily average figure and then multiply by 60 days, perfectly valid method. Snowyco, all homes we're aware of that are registered as "solar grid tied" with CFE do have the digital dual reading meters. What you mention is true, however CFE could cause them issues if found out including charging them for all of their previous estimated pre-solar level of consumption plus a fine. Since there is little cost (mostly time and admin plus the new meter deposit of only about 400 pesos) to doing a CFE solar inter-connection agreement and account change, they might want to go that way, then they can leave the system on and build credits without worry. Plus if / when CFE changes the dial meter to a regular digital one, ....that would likely be an issue, as the regular digital ones only "know how" to count one way....UP. So they generally see the solar production as added consumption and the bill will be higher than pre-solar.
  14. Go Solar

    Digital CFE meters and solar

    46 pesos / 2 months as a min charge for being both the "battery" and the "bank".....way less than typical monthly net metering service fee by most utilities in US & C which can run $15 to $20 / month. And as Pete mentions, the min fee is the same for solar or non solar residential accounts.
  15. Go Solar

    Digital CFE meters and solar

    The CFE "solar" meters register two sets of kWh values: Use from CFE, denoted on most meters as 1.8.0 Sent to CFE, shown as 2.8.0 (this figure is only the excess solar energy that is not used directly in the home at the time it is being produced by the system - it is NOT the total solar production) The difference between the two figures is the amount of energy billed, or credited, and both sets of figures appear on each bi-monthly CFE solar bill.