[RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

[Marco Mangelsdorf]

Aloha Larry,

 

To take a step back…what’s the compelling value proposition from the homeowner’s perspective to incur this non-trivial additional expense?  To be blunt, what’s in it for them?  Back-up power?  First adopter mojo?

 

Thanks,

marco

 

August,

 

To be sure, there is a fragility in using LFP batteries if the integrator does not understand the pitfalls….and there are many. In November a lithium battery and solar “dealer” emailed me for help. He had damaged an $8000 battery bank and wanted to know how to get it working again. After I told him a few things to NOT do, I then offered my expertise for a $250 consulting fee. No response.  I could tell of other cases where the unlearned have ruined their DIY installation or people have bought a LI-ion battery from dealers that won’t provide support. The stories are too many. 

 

I’ve been on the bleeding edge for 2 years now and I’m still discovering mistakes I made in the early application of our battery. Fortunately I am able to make the changes to hardware and software to keep the battery safe from humans. Lead is SO much more forgiving than Li-ion when it is not done right. 

 

We are up to 4-5 installations per month plus out the door sale of about 5 systems per month. I receive email inquiries daily about our LFMP batteries. I have high hopes for products from the likes of Tesla. As I have said in the past, Lithium battery technology IS the future for RE storage…lead, your years are numbered. 


Larry Crutcher
Starlight Solar Power Systems

 

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