My Ongoing Hunt for a 10Kw Inverter with 20Kwh Lithium battery
Hey guys,
Thought I'd document my research here as I work through what has turned into a much bigger rabbit hole than I expected.
My parents are about to complete their dream home, and I'd love to gift them a premium solar + battery system that gives them uninterrupted power, and enough backup that they never have to think about outages again.
The rough plan is:
- 10 kW single-phase hybrid inverter
- 10 kW rooftop solar
- 15–20 kWh LiFePO₄ battery (expandable later)
- Whole-home backup
Over the past few weeks I've been comparing just about every brand I could find—Luminous, UTL, GoodWe, Invergy, Cellcronic, MuscleGrid, Gootu, and a few others. I've also reached out to GoodWe and Invergy for more technical information and pricing.
One thing I've learned is that a lot of Indian brands appear to use Chinese OEM/ODM platforms with their own branding and support. I've realized that's not necessarily a bad thing—the bigger questions are firmware quality, battery integration, after-sales support, and long-term reliability.
So far:
- Luminous & Microtek: Established brands with good service networks. But their products feel OLD. Luminous for sure seems stuck in Lead Acid era.
- UTL: 6KW single phase inverter caught my eye. They are very competitively priced. I am leaning toward them for now.
- MuscleGrid & Gootu: Interesting specs, but I wasn't able to build enough confidence from owner experiences and after-sales feedback. Lots of negative feedback on Amazon. Cleary rebranded Chinese stuff. Again I am not against that, but the manufacturer should stand behind their product and offer good warranty services.
- Cellcronic: Surprisingly detailed documentation, good feature set, CAN/RS485 battery communication, and what looks like a fairly mature ecosystem. Definitely one of the more interesting brands I've come across.
- Deye: I have also reached of to suppliers of Deye Inverters directly.
- GoodWe: Tried calling them 4 times. No one picked up phone. If sales is that bad, how would the service after sales be.
- Invergy: Tried contacting multiple times via mail and phone, again no response.
I haven't made a decision yet. Right now I'm just gathering as much information as possible before making what is a fairly significant investment. Hopefully this post also helps anyone else who's going through the same research process, and I'll keep updating it as I learn more.
If you have inputs feel free to chime in. Else Once I make my decision and proceed with installation, I will share my findings.
Note: I am also leaning towards cleaner looking All in ones or Power walls. The aesthetics are also a valid point for me.