My New Favorite Battery.

[Amy@altE]

He doesn't want the off-grid crowd.

[Sunking]

Tesla updated their press page with inverter news. Both Fronius and SolarEdge are working with them with a hybrid inverter.

Still a CA insanity market thing to load shift. Does not help the Off-Grid grid crowd as it takes 240 VAC to operate the internal charger on a 400 volt battery. No means to charge directly from panels yet.

It still means it is an Exclusive product. No one can just buy the battery from Tesla. It comes as a line Item on you solar contractor bill Solar City which Musk owns a large portion and on the board of directors. Whatcha you wanna bet the compatible Inverters from Fronius and SolarEdge are only available from Solar City as the sole distributor. Sound like another Sun Power deal to me. That is what I would do.

[Willy T]

Except that warranties are usually only good for the manufacturer and Prof installers come and go. Even insurance policies have specific requirements to be met to get any money back.

As for the plus and minus of DC --- I know if you connect them together they let out a lot of sparks and fire.

Since they are going to have a internet connection, one would have to assume they will have monitoring software that will send a alert to someone. Enphase sends me a e-mail when there is a issue. Like cars, I use to do all the maintenance , but now all I do is put gas in it , the dealer does all the rest.

There will be problems, you can expect that, they will work them out or it will fail. I am really not a supporter, so it makes little difference to me what it does. I am happy with my hybrid using grid support.

Another assumption is that " Daily Cycling, 10 KW " means off grid. They may have another concept in mind than whats been expressed. It could have to be grid tied with a hybrid mode.

As far as Musk goes, I heard 30 years ago to stick a fork in Donald Trump he was done. He's still around and is worth 100's of times than what he was then.

[SunEagle]

Thats what you have a warranty for and a Professional Installer. I have my doubts that 1% of the people that can tell you what the Plus and Minus stands for with DC current.

Except that warranties are usually only good for the manufacturer and Prof installers come and go. Even insurance policies have specific requirements to be met to get any money back.

As for the plus and minus of DC --- I know if you connect them together they let out a lot of sparks and fire.

[Sunking]

Two caveats on the RE line: 1) Keeping them cool, and 2) Proper maintenance. If either is lacking, these will get no where near rated life. But these aren't too pricey either for a more premium battery.

Same can be said for any battery. If you are not willing to take care of your batteries, you have no business having them to begin with.

[bberry]

I think most off grid people with disposable incomes would gladly pay for "battery as a service". I give you $2K per year. You make sure I always have 20 kwh of storage available.

Ideally that would be provided with a BMS that could take part of a faulty portion of the bank out of service while maintaining power. Tesla's design should be able to perform that function when multiple units are installed. Their commercial scale product probably requires fault tolerance.

[Willy T]

I found out that just about everything requires some type of maintenance or consumer intervention over it's lifetime.

Except for a brick. As long it is just a brick then there is nothing to maintain or worry about. Once it gets used to build a wall or a roadway then you have to maintain it.

Thats what you have a warranty for and a Professional Installer. I have my doubts that 1% of the people that can tell you what the Plus and Minus stands for with DC current.

[Amy@altE]

Looks like the purchase price of Aquion for residential off grid is about 2.5-3x these prices. Considering the time value of money, the Aquions would need to last about 4x as long.

Don't forget the convenience of low maintenance. People are willing to pay a premium to not have to babysit their batteries. Many are willing to pay 2x for AGM over flooded.

[SunEagle]

This is true, depends on how good it does. If it's all automatic and requires no consumer intervention, It'll be a plus. Tesla should have enough experience to make that happen.

I found out that just about everything requires some type of maintenance or consumer intervention over it's lifetime.

Except for a brick. As long it is just a brick then there is nothing to maintain or worry about. Once it gets used to build a wall or a roadway then you have to maintain it.

[Willy T]

With the additional vendors coming on board it looks like the market for that Tesla battery is growing. I still don't know how long the battery will last but it is possible the installed cost will come down a bit from that $7000.

This is true, depends on how good it does. If it's all automatic and requires no consumer intervention, It'll be a plus. Tesla should have enough experience to make that happen.

[SunEagle]

Didn't take others long to jump on the train before it leaves the station. The others will be left in the dust. I'll make the SMA TL-US look like a gimmick, with the battery, it's a game changer.

With the additional vendors coming on board it looks like the market for that Tesla battery is growing. I still don't know how long the battery will last but it is possible the installed cost will come down a bit from that $7000.

[Willy T]

Tesla updated their press page with inverter news. Both Fronius and SolarEdge are working with them with a hybrid inverter.

Fronius and Tesla have partnered on a global level to offer Powerwall in combination with the Fronius Symo Hybrid inverter as a seamless solution for residential PV systems. For new PV installations, homeowners can use the Fronius inverter to operate both the PV and Powerwall, which reduces the overall system cost. For homeowners that already have solar PV, the Fronius inverter can be added to the system (AC coupled) or replace the existing inverter (DC coupled), and the Fronius solution will function with any type of solar energy system. This makes the Fronius plus Tesla solution a highly flexible solution across the globe.

SolarEdge, a leader in the global PV inverter market, and Tesla partnered for the joint development of a PV storage and backup power solution for the worldwide residential solar market. Building on SolarEdge’s proven DC optimized inverter proven and Tesla's leading automotive-grade battery technology, the solution will require only a single SolarEdge inverter to manage both PV and storage functions. The system is designed for efficient, outdoor installation and includes remote monitoring and troubleshooting to keep operations and maintenance costs low.

Didn't take others long to jump on the train before it leaves the station. The others will be left in the dust. I'll make the SMA TL-US look like a gimmick, with the battery, it's a game changer.

[bberry]

We've got them available. http://www.solarreviews.com/solar-di...rs/alte-store/

A few examples of price:
6 volt @ 465 AH IND9-6V $834
6V 695Ah IND13-6V $1138
4 volt 1618Ah IND29-4V $1500

Looks like the purchase price of Aquion for residential off grid is about 2.5-3x these prices. Considering the time value of money, the Aquions would need to last about 4x as long.

[Amy@altE]

Can you use a 350 to 450 volt battery Inverter and do they exist? Sure do just about all commercial UPS use high voltage DC inverters. But those are Commercial and Industrial grade Battery Inverters and come with a commercial industrial price tag. They also operate in the 6 and 7 digit wattage range.

I know the next response and question from the Green Blind crowd: Grid Tied Inverters operate at that voltage. Well they most certainly do but that has nothing to do with a BATTERY INVERTER. What it will take is a Hybrid Inverter and all those on the market are made for 12, 24, and 48 volt systems all operating under that magic 50 volt limit the Green Blind Crowd keeps ignoring and does not want to hear about. It can be done, but none exist that I know of for the consumer markets. What you wanna bet that is Tesla next move?

Tesla updated their press page with inverter news. Both Fronius and SolarEdge are working with them with a hybrid inverter.

Fronius and Tesla have partnered on a global level to offer Powerwall in combination with the Fronius Symo Hybrid inverter as a seamless solution for residential PV systems. For new PV installations, homeowners can use the Fronius inverter to operate both the PV and Powerwall, which reduces the overall system cost. For homeowners that already have solar PV, the Fronius inverter can be added to the system (AC coupled) or replace the existing inverter (DC coupled), and the Fronius solution will function with any type of solar energy system. This makes the Fronius plus Tesla solution a highly flexible solution across the globe.

SolarEdge, a leader in the global PV inverter market, and Tesla partnered for the joint development of a PV storage and backup power solution for the worldwide residential solar market. Building on SolarEdge’s proven DC optimized inverter proven and Tesla's leading automotive-grade battery technology, the solution will require only a single SolarEdge inverter to manage both PV and storage functions. The system is designed for efficient, outdoor installation and includes remote monitoring and troubleshooting to keep operations and maintenance costs low.

[Amy@altE]

do you have a link to a resale that I could actually check the for sale price on these. I have been cruising the web looking but I can not find this new technology battery for sale.

We've got them available. http://www.solarreviews.com/solar-di...rs/alte-store/

A few examples of price:
6 volt @ 465 AH IND9-6V $834
6V 695Ah IND13-6V $1138
4 volt 1618Ah IND29-4V $1500