Recent content by wattmatters

  1. wattmatters

    Making the jump to solar

    Yesterday was rainy with sun poking through at times. Love the free energy we get in the middle of the day. Also a bonus period in the evening where we get $1 for not importing and extra for exporting some. 25-Apr PV Import (Free) Export Consumption kWh 22.5 27.6...
  2. wattmatters

    Battery balancing and calibration MG4 NMC

    In that case you would be better to put a power/energy monitor on your charge station circuit if it doesn't have something already built in. It's the energy put through a charge station you are paying for, not what ends up in the car's drive battery. Another option is to use ChargeHQ. It...
  3. wattmatters

    Battery balancing and calibration MG4 NMC

    Just on this, I have a sensor set up in my Home Assistant which counts the days since my car was last at 100% SOC. MG4 Essence 64. It's a tool I have to check it hasn't been too long. Usually it looks after itself without me needing to schedule it as I'll typically give the car a full charge...
  4. wattmatters

    Battery balancing and calibration MG4 NMC

    What info do you need? While driving the car is always sending data to the SAIC server, so that part is covered, e.g. odometer readings. That doesn't tell you what the km were for though (e.g. personal v work). For charging energy it would be better to use data from your charging source(s).
  5. wattmatters

    Battery balancing and calibration MG4 NMC

    Not usually, unless you are high mileage and DC fast charge a lot. If the car really needs an equalisation, it will tell you. Else normal charging to 80% SOC will take care of it, provided it's the car's BMS which stops the charge session and not the EVSE (or service controlling it) as that...
  6. wattmatters

    SOH report MG4

    Measuring SOH requires a controlled deep discharge and full recharge of the battery. Unless that was done then the SOH is just a number from the on board guessometer.
  7. wattmatters

    V2G Vehicle-to-Grid capability

    I would not recommend it, unless the car and battery is out of warranty or you care little about that. It's not that it wouldn't work, it's just that if issues do arise, keep in mind that the car's data is all uploaded to SAIC's servers. They know what the car has been doing. For me it's...
  8. wattmatters

    V2G Vehicle-to-Grid capability

    I have tested the Sigenergy EVDC module with both our MG4 (2023 Essence 64) and ZSEV (2023 Excite). It works but MG provide no statement about impact on warranty and there is every chance it could be used to void warranty. Note that when testing one mode with the EVDC it resulted in a HV...
  9. wattmatters

    Making the jump to solar

    Our energy bills for a large all electric home (pool pumps, 2 x ducted aircon, large shed, water supply and waste water pumps) and two EVs for last six months: We are currently $141.12 in credit. I've not actually had to pay an energy bill for ages. The current period from 1 April we are in...
  10. wattmatters

    MG4 VS MGZS EV

    Yes.
  11. wattmatters

    MG4 VS MGZS EV

    We have both a 2023 MGZS EV (gen 2 Excite base model) and a 2023 MG4 (Essence 64 kWh model). Australia. Quite different cars suiting different personal preferences. I suggest you drive each beforehand. If driving dynamics is important to you, then the MG4 is your pick, no question. If you...
  12. wattmatters

    Making the jump to solar

    Is that the inverter limit or the PV limit? And can it be higher with approval and zero export?
  13. wattmatters

    Making the jump to solar

    Is that a regulatory limit of some kind, or just a small roof? Relatively small power panels being a bit over 300 W. Modern panels are more like 500 W each. The calculus for how much solar and battery to get requires an assessment of a whole range of factors as well as an understanding of what...
  14. wattmatters

    Keeping track of my MG4 (efficiency)

    The car is consuming energy while idle. How much depends on what it is doing. Aircon systems will definitely draw power. In Australia cabin heating will use a chunk of power as we do not get heat pumps, just single direction aircon. Aircon consumption will vary depending on a range of variable.
  15. wattmatters

    V2L function to power the house?

    And yet you can buy them and they are marked compliant with ANZ standards. https://sydneytools.com.au/product/bayer-bex40m15a-40m-250v-15a-heavy-duty-extension-lead https://detaelectrical.com.au/products/deta-40m-15a-extra-heavy-duty-extension-lead
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