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Discussion in 'Tesla Energy' started by Brightonuk, Feb 5, 2016.
WattGrid vs Tesla - All Grid Energy
This is good to have people comparing themselves to you, it means you have the best product!:wink:
It would also be nice to know how the gel battery compares to Li ion. Not a lot of info on the wiki.
Not sure if you noticed they are located in Australia. The web page looks very amateurish. Doubt Tesla is focused on the Australia market right now anyway.
Actually, Tesla is. Australia got one of the first Powerwall installs recently, and the electricity pricing there makes battery storage compelling.
Why do you judge it amateurish?
No. WattGrid is a snake oil salesmen selling lead acid batteries that will only last a few years.
Got data to support that?
the website looks like it was amatuer hour at the website school. Tables don't align properly. They confuse kW and kWh. It looks decidedly scammy.
It's a lead acid system. That's how they they work. This system is nothing new. Just the same old batteries people have been using for years. They are just smart enough to constantly refer to Tesla and how they are "cheaper" in their press releases. The key figure they never release is the number of cycles that battery is rated for.
Lead acids and gels can be very dangerous at home. Require maintenance to ensure they don't explode and leak deadly gasses.
Here's some nice data
Life of VRLA batteries seem to be between 5-8 years. But after you look at discharges of only 40% that drops to 5.5 years MAX and at 80% discharge that only 4.1 years MAX. I certainly wouldn't be worried about these guys as major competitors of Tesla.
My source: http://www.power-thru.com/documents/The%20Truth%20About%20Batteries%20-%20POWERTHRU%20White%20Paper.pdf