Tesla Motors Club
Earlier this year we had a 10kWh solar system installed along with a Powerwall 2. After the install was complete, we had our smart meter installed. Recently, we received a huge electricity bill on top of the amount we'd already paid. It turns out that the initial amount was an estimate and our smart meter finally uploaded our usage to the power company.
I'm a tad confused!
According to our electricity company portal (we can log in and see what our smart meter has reported to them), we used 20kWh of electricity from the grid, yet the Tesla app states we only used 1kWh on Saturday (for example). Every day is pretty much the same. The power company states we used 10-20kWh from the grid, whilst the Tesla app reports 0.3 - 1kWh for the exact same period. We've only just been able to access the power company portal in the last week due to their being an issue at their end with that hence this discovery only just being made.
I've managed to pinpoint usage from the grid being from around midnight to 3-4am. I believe this is the electric hot water system. Each morning our Powerwall has anywhere between 30-60% (this morning was higher), charge left, so I don't understand why the hot water service draws from the grid and not the PW2. The peak draw our hot water system does is 4kWh, so it's not like it's beyond the PW2's capabilities to supply it. The highest I've sen it go is around 1.7 to 1.9kWh. Interestingly, the amounts we export match exactly on both the Tesla app and the power company portal.
I'm currently in a roundabout with the power company (is the smart meter wrong, or showing what's being used from the PW2 in off-peak times as being grid usage in error, or is it wired wrong?), the installers (has our system been wired incorrectly so the PW2 doesn't recognize our hot water system), and Tesla (they've checked our battery remotely and stated it's working fine, but are they able to check if it's powering off peak services like our hot water remotely?).
To give you an idea, we live in South Australia. Apparently, we do have some of the highest electricity prices in the world (40c/kWh), but our bill since the PW2 was installed in March of this year, was nearly $3000.00 (yes, three thousand), dollars. We live in a small, 3 bedroom house that was rebuilt with the most energy efficient appliances just prior to the install of our solar / battery system. Personally, I can't see that a hot water service could use so much electricity in that time and I believe there's an issue with the calibration of the smart meter and how our PW2 is set up (it seems to be ignoring the hot water service). I've been told that our hot water system is on the same circuit as the rest of the house, so is it an issue between peak and non peak times / charges that's not being recognized
I have our PW2 set to Self-Powered with a backup level of 15%.
Honestly, it's been a circus trying to work this out. Has anyone experienced an issue like this before?
I'm a tad confused!
According to our electricity company portal (we can log in and see what our smart meter has reported to them), we used 20kWh of electricity from the grid, yet the Tesla app states we only used 1kWh on Saturday (for example). Every day is pretty much the same. The power company states we used 10-20kWh from the grid, whilst the Tesla app reports 0.3 - 1kWh for the exact same period. We've only just been able to access the power company portal in the last week due to their being an issue at their end with that hence this discovery only just being made.
I've managed to pinpoint usage from the grid being from around midnight to 3-4am. I believe this is the electric hot water system. Each morning our Powerwall has anywhere between 30-60% (this morning was higher), charge left, so I don't understand why the hot water service draws from the grid and not the PW2. The peak draw our hot water system does is 4kWh, so it's not like it's beyond the PW2's capabilities to supply it. The highest I've sen it go is around 1.7 to 1.9kWh. Interestingly, the amounts we export match exactly on both the Tesla app and the power company portal.
I'm currently in a roundabout with the power company (is the smart meter wrong, or showing what's being used from the PW2 in off-peak times as being grid usage in error, or is it wired wrong?), the installers (has our system been wired incorrectly so the PW2 doesn't recognize our hot water system), and Tesla (they've checked our battery remotely and stated it's working fine, but are they able to check if it's powering off peak services like our hot water remotely?).
To give you an idea, we live in South Australia. Apparently, we do have some of the highest electricity prices in the world (40c/kWh), but our bill since the PW2 was installed in March of this year, was nearly $3000.00 (yes, three thousand), dollars. We live in a small, 3 bedroom house that was rebuilt with the most energy efficient appliances just prior to the install of our solar / battery system. Personally, I can't see that a hot water service could use so much electricity in that time and I believe there's an issue with the calibration of the smart meter and how our PW2 is set up (it seems to be ignoring the hot water service). I've been told that our hot water system is on the same circuit as the rest of the house, so is it an issue between peak and non peak times / charges that's not being recognized
I have our PW2 set to Self-Powered with a backup level of 15%.
Honestly, it's been a circus trying to work this out. Has anyone experienced an issue like this before?