SolarEdge SE7600A-US vs SE7600A-USS

[shet]

What is the difference between SE7600A-US ($1,500 online) and SE7600A-USS ($3,000 online) ? The latter seems to have PowerWall compatibility but not the former. This is for New Jersey.

[ButchDeal]

What is the difference between SE7600A-US ($1,500 online) and SE7600A-USS ($3,000 online) ? The latter seems to have PowerWall compatibility but not the former. This is for New Jersey.

BTW: the SE7600A-US is upgradeable to the SE7600A-USS

The main difference is in the electric connection box at the bottom, the StorEdge (SE7600A-USS) has more in the power connection section in the bottom.

There are more costs as well if you want to be able to have backup power (without the grid).

[shet]

BTW: the SE7600A-US is upgradeable to the SE7600A-USS

The main difference is in the electric connection box at the bottom, the StorEdge (SE7600A-USS) has more in the power connection section in the bottom.

There are more costs as well if you want to be able to have backup power (without the grid).

For backup power, I understand that a battery/PowerWall would be required. What else? I also an auto-transformer mentioned. Is that for getting two 120V AC split phase from the 240V AC output of the inverter.

Maybe I can ask for SE7600A-USS instead of regular 7600 but not the battery or auto-transformer. Also maybe have the backup wiring done too so that whenever I buy the battery and auto-transformer, I can just plug it in.

[shet]

BTW: the SE7600A-US is upgradeable to the SE7600A-USS

The main difference is in the electric connection box at the bottom, the StorEdge (SE7600A-USS) has more in the power connection section in the bottom.

There are more costs as well if you want to be able to have backup power (without the grid).

Which one would be cheaper? Buying SE7600A-USS or buying SE7600A-US and then upgrading it. Common sense says the former.

[shet]

Meanwhile, here is a link from solaredge website about how to have clearances around SE7600A-US for future upgrade to USS.

http://www.solaredge.us/articles/blog/how_to_get_ready_for_the_future

[ButchDeal]

For backup power, I understand that a battery/PowerWall would be required. What else? I also an auto-transformer mentioned. Is that for getting two 120V AC split phase from the 240V AC output of the inverter.

Maybe I can ask for SE7600A-USS instead of regular 7600 but not the battery or auto-transformer. Also maybe have the backup wiring done too so that whenever I buy the battery and auto-transformer, I can just plug it in.

For backup you would need an auto-transformer. Yes it gets you split phase from the 240V inverter.
you would also need an emergency service panel and some electric work to move some circuits to the emergency panel. Only the emergency panel will be up during a grid outage.

[huge]

Is this emergency panel what converts it to a grid zero configuration? I'm trying to figure out what I need to do to have power when the power goes out, and it's hard to get some info on it. If I understand correctly, this storedge autotransformer thing is kind of like the SPS feature on the SMA sunny boys, except it's tied to the panel instead of just a power plug.

[ButchDeal]

Is this emergency panel what converts it to a grid zero configuration? I'm trying to figure out what I need to do to have power when the power goes out, and it's hard to get some info on it. If I understand correctly, this storedge autotransformer thing is kind of like the SPS feature on the SMA sunny boys, except it's tied to the panel instead of just a power plug.

Grid zero is totally different and does not necessarily mean backup capable.
The emergency panel is what makes it a backup capable system.
The auto transformer gives you 120v and is nothing like the SPS from SMA.
A StorEdge with powerwall battery, emergency panel, and transformer will give you uninterruptible power on several circuites wired in as well as 240v power to things well well pumps. It wil give this power at night as well as day time.
The SPS will give you a manual switch with single 120v not wired in configuration ( this outlet does not work during normal operation) and only during high solar production.

Btw, grid zero means you are not feeding into the grid. SolarEdge can do this without a powerwall, without transformer, and without emergency panel. All that is needed is an additional meter, though it has more capability if you add the battery.

[huge]

Thanks Butch. So if I get the SE7600A-US and an additional meter, I will be able to get some power during the day if the power goes out? Can this meter be added after my system passes the inspection?

The powerwall is certainly a better option, but also seems like much more expensive. i just need the AC and fridge to be powered during the few days a year that the power goes out in the summer.

[ButchDeal]

no. The meter will do grid zero which means not feeding back to the grid. but does nothing for providing power when the grid is down.

Yes the powerwall and storedge is a much higher expense but also much more functionality.

the SPS might do it but would be manual and would only by during sun up and good sun, and with an extension cord.

[Amy@altE]

I opened up the two and recorded a video of the two of them side by side. May not help you decide, but cool to see (I think). Go to YouTube and search "Introducing SolarEdge's StorEdge Hybrid Solar Inverter "

[nevetsyad]

So, I have a quote for 6kW of panels and a SolarEdge 7.6kW inverter for a $20K installed. I want to upgrade it to two powerwalls (or comparable batteries around 12kWh), a 7.6kW StorEdge inverter, and move the furnace, kitchen and garage circuits over to an Emergency panel. For some reason, the installer is trying to convince me not to. Saying it will double or triple the system cost. StorEdge brings the inverter to 3 grand instead of 1.5 for the SolarEdge, batteries are maybe 7 after markup, that's 8K and some change, tack on a few grand for profit, we're at 10 or 12K, plus 20 for the system, 30 or 32, right? How are they saying it will be 40 or 60 grand? I got a quote for a micro inverter system earlier in the year and they also wanted to convince me not to do battery backup.

Isn't this the opposite of what Elon is pushing for? Why don't installers want to put in backup systems?

[huge]

Since they are not so common, and not financially practical, the work to profit ratio increases with these battery systems for the installers.

[nevetsyad]

Yeah, the StorEdge just became and option last year, and power walls really aren't shipping in mass yet. But I mean, charge me 12K extra and put me on the wait list for them.

When my state gets rid of net metering, they may quickly become viable financially, as my solar generation while at work is wasted. But what I want is the ability to keep warm during prolonged outages in winter. Without keeping a 50 gallon tank of fuel in the garage and maintain a large stinky engine. Which by the way, is still thousands of dollars plus install and electrical work for an emergency panel. I guess I can always upgrade to StorEdge, batteries when they're more common, and add a few panels so it all qualifies for a tax write off.

[silversaver]

Idea is good for sure but not pratical. a 10 or 20kW battery bank will not keep you out of cold winter than your 50 gallon tank. A cheap hybrid generator goes a better job at power outage. When the price on these battery banks drop, you will find a better product than what you can find today.

[nevetsyad]

The furnace is only a 100-200 watt fan blowing gas heated air around the house. If it ran constantly, which it doesn't, that's 2.4kWhs (upwards of 4.8kW). You don't think 6kW of solar can create that much power every day?

[SunEagle]

The furnace is only a 100-200 watt fan blowing gas heated air around the house. If it ran constantly, which it doesn't, that's 2.4kWhs (upwards of 4.8kW). You don't think 6kW of solar can create that much power every day?

Not if you get multiple days of clouds or low sun. Then you will be wishing you had that generator and the 50 gallon tank of gas to stay warm.

[nevetsyad]

Even on a cloudy day, I'd hope my 6.6kW system could produce a few kilowatt hours. If the panels still work at 10%, that's at least 500 watts per hour put in the batteries for the night. Realistically, the fan only goes for half the day, so I only need a kW or two, battery alone will probably last two days. I'm thinking worst case scenario here though. I can always turn the temp down a little and bundle up, heater will only run a few hours per day then. I just want to keep the pipes from bursting and cell phones charged. If the batteries fill up, maybe slow charge an EV during the day at 1kW.

I hate maintaining gas engines, especially because most outages are just for a few hours, maybe a day. I like the idea of a system that just keeps vital circuits going, no maintenance. And filling up every day during a prolonged outage, from the sun is just icing on the cake. Not to mention, if a hurricane or tropical storm takes out power to the area for days, gas stations could be down, I could charge my car at home if the weather was at all good.