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PowerSafe100
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 The PowerSafe 100 is a 100kWh Solar Energy Storage device with 15 kW DC-AC pure sine wave inverter/charger and a complete battery management control and display system.

It is a complete OFF-GRID AC power system with a 240vac power output of 15kW continuous and up to 45kW surge in the standard U.S. 240vac L1, L2, Neutral, ground four wire output that can be wired into any standard loads panel.

It does NOT work with the utility grid but you can use grid (or generator) INPUT to recharge the batteries.

Better, it works fantastically with grid-interactive solar systems, replacing the grid and will actually recharge the batteries from your grid-tied inverters and solar panels.

This is NOT UL listed although it is compliant and is intended for stand-alone power applications.  It uses 20 Tesla Model S battery modules for energy storage. 
Price: $72,995.00
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PowerSafe15
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PowerSafe 15 RV and Marine Edition.  You asked for it. It's here.
 
The PowerSafe 15 is a 15kWh Solar Energy Storage device with 6 kW DC-AC pure sine wave inverter/charger and a complete battery management control and display system. This particular version is optimised for Recreational Vehicle and Marine use and Tiny House/Off-grid cabin installations.

It is a complete OFF-GRID AC power system with a 240vac power output of 6kW continuous and up to 18kW surge in the standard U.S. 240vac L1, L2, Neutral, ground four wire output that can be wired into any standard loads panel.

It does NOT work with the utility grid but you can use grid (or generator) INPUT to recharge the batteries.

Better, it works fantastically with grid-interactive solar systems, replacing the grid and will actually recharge the batteries from your grid-tied inverters and solar panels.
off
This is NOT UL listed although it is compliant and is intended for stand-alone off-grid power applications.  It uses 3 Tesla Model S 5.5kWh  battery modules for energy storage. 

Battery Display Optional. 




Price: $12,995.00
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PowerSafe60
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 The PowerSafe 60 is a 60kWh Solar Energy Storage device with 15 kW DC-AC pure sine wave inverter/charger and a complete battery management control and display system.

It is a complete OFF-GRID AC power system with a 240vac power output of 15kW continuous and up to 45kW surge in the standard U.S. 240vac L1, L2, Neutral, ground four wire output that can be wired into any standard loads panel.

It does NOT work with the utility grid but you can use grid (or generator) INPUT to recharge the batteries.

Better, it works fantastically with grid-interactive solar systems, replacing the grid and will actually recharge the batteries from your grid-tied inverters and solar panels.
off
This is NOT UL listed although it is compliant and is intended for stand-alone off-grid power applications.  It uses 12 Tesla Model S 5.5kWh  battery modules for energy storage. 
Price: $49,995.00
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Sigineer 6kW 24vdc Inverter/Charger
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 This 6 kW 24vdc 120/240vac inverter charger coupled with Tesla Model S battery modules provides the perfect power system for 24v Recreational Vehicles (RV) and boat applications.  Specially designed for EVTV, this inverter supports the specific charge and operating voltages of the Tesla Model S battery module and features a 60 to 62.5 Hz frequency shift function to control grid-tied microinverters such as the Enphase IQ series or Solar Edge.

The inverter produces 6000 watts of continuous power and 18000 watts for up to 20 seconds for air conditioning startup loads. Includes remote LED panel.
Price: $1,395.00
Sigineer 15kW  48v Inverter for Tesla Battery Modules
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THE MOST POWERFUL 48vdc INVERTER IN THE WORLD 

Battery powered off-grid systems are quite popular and 48vdc is the current voltage of preference.  Unfortunately, most 48vdc inverters are simply a poor match for Tesla Battery Modules.  Why?

The main problem is the Low Voltage Cutoff - the point of battery discharge where the inverter will shut down to protect the battery.  Almost all 48vdc inverters have LVCO in the 42-44v range with a very very few able to handle batteries down to 40v.

Two Tesla Battery Modules in series are pretty much discharged at 38v.  but they are only 50% discharged at 43.2v.  And so with almost all inverters on the market you are leaving 30-50% of your battery capacity on the table.  That means you have to purchase TWICE the battery capacity that you would need if the inverter simply operated down to the 38v cutoff.

The other issue is that many of these inverters will also charge your batteries from AC - the charger is built in.  That's great, but they are traditionally designed for lead acid batteries.  They may support a bewildering array of Pb chemistry types, but ALL of the charge curves they provide are deadly to Tesla Battery Modules.  We advocate charging with a simple bulk current to 50.5volts and NO MORE.
Almost all inverters want to charge to something more like 56 volts with equalization phases as high as 60v.  This will immediately DESTROY your Tesla Battery Module, not over time but the FIRST time it does so.

And of course most 48vdc inverters provide 4kw to 8kw of power max.

We have located an excellent quality 15 kilowatt inverter made in China that can do 45kw for 20 seconds.  It charges at 110 amperes from 240vac.  And we have commissioned them to provide a Low Voltage Cutoff of 38vdc and a charge limit of 50.5vdc - ideally tuned for the Tesla Battery Modules.

With the 15kW model, we introduce a set of FREQUENCY SHIFT contacts.  When used with our ESP32 Battery Module Controller, this lets you easily turn off grid tied inverters used to backcharge your batteries through the inverter when the battery gets full.
Price: $3,295.00
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Danfoss DLX 4.4 Grid Tied Inverter
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 Danfoss DLX4.4 Grid-Tie Inverter.  This device puts out up to 4.4kW of 240vac 60Hz electrical power from a 230-500v DC input.  It is UL1741 compliant and must have an existing AC waveform from an off-grid inverter or utility-grid to synchronize to.

This is ideal for using full Tesla Model S battery packs at the nominal 345 voltage for peak shavers or time of day rate shifters.
Price: $995.00
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Explosion Proof 20kw Off-Grid Inverter
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 This 20kw True Sine Wave off-grid inverter is just fun.  It doesn't make any sense pricewise unless you need the explosion proof rating to operate in mines, dusty areas, aluminum powder areas, or other places requiring an explosion proof enclosure that won't expose any sparks or arcs to the environment.  But the enclosure winds up being very rugged with huge external heat sinks to dissipate the heat without the usual airflow.  So the result is a super heavy, super industrial look in a very heavy duty very high qaulity iindustrial 20kW off-grid inverter.  We HAD to have one.  And our viewers might have an application where this is just the thing and justifies the expense.

The side effect of course is that what can't get out also can't get in.  And you have a super environmentally resistant enclosure.  This one of course designed to use electric vehicle/Tesla full battery input voltages.
Price: $16,595.00
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10kW High DC Input RackMount True Sine  Inverter
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 A 10kW 240vac/120vac isolated inverter for use with a Tesla/Volt/Leaf full battery pack.  This device is amazing.  First, it works from a high voltage DC input of 200-500vdc - perfect for an EV battery.  Second, it has an AC output to match U.S. power panels with L1, L2, N and ground.  This means two 120vac output circuits and a single 240vac circuit - exactly like your power panel.  And yes, it is a true sinewave inverter.

It fits in a standard 19 inch rack mount just 10 1/4 inches high. It uses a heavy quality copperlow frequency  transformer totally isolating your AC side from your DC battery.  Clear readable front panel LCD allows you to set your low voltage cutoff to whatever you like (typically around 300v) to prevent overdischarge of your battery.  But it goes high enough (500v) to handle initial surges from high voltage photovoltaic arrays.  And at a price typical for a 5kw inverter. And it will do 15kW for 5 seconds to start even the largest air conditioning load. NOT GRID TIE - off grid inverter. 94% efficient.
Price: $3,995.00
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5kW High DC Input RackMount True Sine Inverter
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 A 5kW 240vac/120vac isolated inverter for use with a Tesla full battery pack.  This device is amazing.  First, it works from a high voltage DC input of 200-500vdc - perfect for an EV battery.  Second, it has an AC output to match U.S. power panels with L1, L2, N and ground.  This means two 120vac output circuits and a single 240vac circuit - exactly like your power panel. And yes, it is a true sine wave inverter.

It fits in a standard 19 inch rack mount just 10 1/4 inches high. It uses a heavy quality copperlow frequency  transformer totally isolating your AC side from your DC battery.  Clear readable front panel LCD allows you to set your low voltage cutoff to whatever you like (typically around 300v) to prevent overdischarge of your battery.  But it goes high enough (500v) to handle initial surges from high voltage photovoltaic arrays.  And at a very low price. And it will do 7.5kW for 5 seconds to start even the largest air conditioning load. NOT GRID TIE - off grid inverter. 94% efficient.
Price: $2,995.00