Can anyone explain what is meant by ‘maximum consumption usage’ in the warranty documentation and how I would know if I have reached / exceeded it
“Maximum Consumption Usage”
i)
Unlimited cycles when used for self consumption of renewable generation or
energy charged from the grid; or
ii)
When controlled by a 3rd party or used for grid trading*, a fair use allowance of
10MWh/1kWh stored capacity applies.
*Grid trading refers to the system being used to offer services to the grid whether or
not for financial gain.
This is from my warranty document.
I take it to mean that there is no Maximum Consumption Usage if I do not allow my battery to be controlled by a 3rd party.
If I do allow a 3rd party to have control of my battery and use it when they want to then
the 10MWh/1kWh stored capacity applies. I have a 9.5kW battery so this would mean after 95MWh of use the battery would be out of warranty.
I use my battery heavily during the winter and it can be charged and emptied up to three times a day. The battery is one year old and the consumption is under 5MWh.
If it was used for grid trading and used 5MWh a year then it would take 19 years to before it reached the fair use total. This would be 7 years after my warranty expires.
1 Like
I think they include charge and discharge.
Mines 4.244MWh in, 4.032MWh out, so 8.276MWh throughput. or 8.7% of allowance
this is in 17 months
Which means 16yr3m
Spot on @NormC
This limit only applies when your inverter is controlled by a 3rd party (e.g. Wonderwatt, My Energy Optimiser, Predbat cloud) or Grid trading such as Octopus Intelligent Flux.
Whether things like Axion (spelling?) DFS saving session management applies, not immediately clear. Probably as it’s a 3rd party.
If you are managing the battery yourself, by which I believe includes direct local control such as GivTCP/GivLocal and Predbat, then its unlimited usage.
But in practical terms it would be hard to exceed the limit within the 12 year battery warranty period anyway