Yes, just in case your Powerwall2-monitoring-OCD is not satisfied by the Tesla App, or PVOutput, there is yet another 3rd party option available, and finally a use for the otherwise-banished Metro interface on Windows10.
This time I’m going to introduce you to Powerwall Companion, a Windows 10 “app” that can be used on your desktop with low impact, and also makes a great always-on home monitoring display if you have an older tablet or notebook going spare.
You get this from the Windows App Store here – it’s a 58mb download, a quick install, and it will update in the background if the Author, Thirty Hippos, adds new features. There’s even a Windows Phone version, if you are one of the handful of people who have this phone in Australia….
Once installed, add your credentials and it will retrieve the PW2 states and live data from your Tesla account – no need for a local connection to the PW2 via Wifi, which will suit people who were given the 3G connection by their installer.
It has a default view of the charge state and power flows in landscape mode.
It can be scaled up or down without quality issues. Here’s portrait mode above.
There’s a graphing page that loads in a few seconds and has an export function. You can select the same date ranges as the Tesla official app.
This shot above is the year to date since my install In June 2017. Unlike the App, it does not give you the totals on the screen though.
There’s also a view for just the charge state of the PW2 over time.
The settings screen just has a place for your credentials, so no screenshot for that one. If it fails to work one day, as mine did, you have to sign out and sign back in again, as it appears Tesla expires the logins from time to time.
Even more monitoring from your power provider?
I use Powershop, as they have a neat phone app, and a website that shows your power consumption with half-hour reads – their prices are reasonable too, although you need to interact with them to buy “powerpacks” in order to get a discount off the base rates every so often.
Whilst they don’t show anything for the solar contribution beyond a FiT credit on the bill each month, it’s interesting to see what effect the PW2 had on reducing my grid-import via their handy usage graph:
You can see when the PW2 was installed – just prior to July 2017 – and the steep drop-off in grid-import consumption that followed the install is really obvious. Note that my usage above includes charging an electric car overnight pretty-much every day for this period, so if you don’t have an EV, your grid-import usage would be even less, perhaps zero, after installing a PW2.