Chris999

Thanks for this. Looks like we will be reaching a written agreement that works for both of us.

Looks like we will be amending the contract.

I agree with you completely. It would make life much easier provided that the inverter can support communication protocols of all the major battery brands. However there is risk of the blame game when one of the devices fail.

100%; I intend to make a request to amend the contract. However I would like to see how others in this situation have set up their contracts. I'm looking for examples of such clauses that I can use in my contract and have it vetted by an attorney. I do not want to sell my system as it includes an SoC based inverter/battery/load controller I have been developing and testing over the past few years. The system can not be operated without this controller as the inverters built in lithium battery support is questionable/sub-optimal and all features would be lost. While I can build a new controller, machining enclosures, ordering components and a PCB for single device is cost prohibitive and I would rather wait until I complete the design for the second generation. My current priority is implementing and testing new software features while monitoring hardware reliability/robustness of the 10 units in operation.

Hi All, I have a fairly small solar system consisting of a few solar panels, 3kW inverter, lithium batteries and my custom inverter controller device. On previous properties, I have never had an issue with removing my system when I move as I restore the property to the original condition when I remove my system. IE: Filling mounting holes in walls, changing wiring in mains DB back to the original configuration; only exception would be small screw holes in the brandering used for the module purlin brackets. I am planning to rent a house, however I am concerned about the lease agreement regarding immovables. The contract is worded in a way that implies that the landlord will take ownership of my system if I install it. I want to request an amendment to the lease agreement that allows me to remove my system when I terminate the lease. They have indicated that they would want to purchase my system, however this is not in the lease agreement. My question is does anyone have an clause in their lease agreement that prevents the landlord from taking ownership of their system? If yes, could you please share this clause? I am going to have the lease agreement checked out by a professional, however I want to discuss a suitable amendment with the lessor. It appears that my only other (possible) alternative is modifying my system to operate as a backup system instead of a standby setup: - Not wiring the system in directly into the mains DB for municipal supply (making use of an existing 16A socket) - Not mounting the system to the walls and modifying my battery cabinet (that features floor standing configuration) as well as a attaching a frame for inverter, battery/PV and AC DB. - Making use of extension cords for loads (this comes with compliance challenges) - Using a ballasted ground standing PV mounting structure.

Dumb question, but are you discharging the battery completely to the point of under voltage cut out or does the battery disconnect in a 'power saving' mode when the is no load? I would assume if the latter is the case, this mode could be disabled via software in the battery. Does anyone know if there are communication protocol docs available for these batteries? Maybe a diagnostic application (can be sniffed)?