Fortress ENVY Duo 21
$6,000.00 USD / each
48V hybrid inverter for home backup and off-grid systems. See the datasheet for PV input and AC output ratings.
16 inverter choices, with personal sizing and equipment advice from Doug Mycko at SolarMan. Prices below are per unit in US dollars. Contact us to confirm availability and your complete system quote. PDF links open the manufacturer's document, where you can save or download a copy.
Fortress Power
Hybrid inverter options
Fortress ENVY 10
$4,600.00 USD / each
10kW hybrid inverter for 48V battery systems.
ENVY 8/10 family photo; shared manufacturer datasheet.
Fortress ENVY 8
$4,300.00 USD / each
8kW hybrid inverter for 48V battery systems.
ENVY 8/10 family photo; shared manufacturer datasheet.
Fortress ENVY 6
$1,850.00 USD / each
Supplier item FORT-ENVY-6. Ask Doug to confirm the exact unit and electrical ratings before ordering.
Representative ENVY family photo; exact ENVY 6 appearance is unverified.
EG4 Electronics
Off-grid and hybrid power
EG4 6000XP
$2,000.00 USD / each
6kW off-grid inverter/charger. 48V battery system and 120/240V split-phase output.
EG4 FlexBOSS21
$4,900.00 USD / each
48V hybrid inverter with 21kW PV input capability. The 21kW figure describes solar input, not continuous AC output.
MidNite Rosie
Battery inverter/chargers
MidNite Little Rosie
$2,000.00 USD / each
MNLR4548RE • 4,500W • 48V battery • 120V AC. Compact inverter/charger.
Manufacturer photo used on its MNLR4548RE product page.
MidNite Rosie RE
$4,300.00 USD / each
MNROSIE7048RE • 7,000W • 48V battery • 120/240V AC. Inverter/charger for home power systems.
Sol-Ark
Residential and three-phase commercial
Sol-Ark 5K 2P N3R
$4,900.00 USD / each
120/240V split-phase hybrid inverter. The two-leg model selected for this catalog.
Representative Sol-Ark residential enclosure photo.
Sol-Ark 8K N3R
$5,500.00 USD / each
120/240V hybrid inverter for 48V battery systems.
Representative Sol-Ark residential enclosure photo.
Sol-Ark 12K N3R
$5,800.00 USD / each
Residential hybrid inverter for solar, battery backup and off-grid applications.
Sol-Ark 12K N4 EMP
$7,900.00 USD / each
EMP-option configuration. Supplier ordering designation: SA-12K N4 EMP.
12K family photo. Datasheet covers the base inverter; see the manual for EMP installation.
Sol-Ark 15K N3R
$6,900.00 USD / each
Residential hybrid inverter with 120/240V split-phase output and 48V battery integration.
Sol-Ark 15K EMP
$9,500.00 USD / each
EMP-option configuration. Supplier ordering designation: SA-15K N4 EMP.
15K family photo. Base-inverter datasheet plus manufacturer EMP test report.
Sol-Ark 30K 3P
$16,000.00 USD / each
30K-3P-208V commercial hybrid inverter. Three-phase service and compatible high-voltage batteries required.
Sol-Ark 60K 3P
$22,000.00 USD / each
60K-3P-480V commercial hybrid inverter. 480/277V three-phase service and compatible high-voltage batteries required.
Rosie inverter accessories
E-panels and mounting hardware
Rosie Follower E-Panel
$1,281.15 USD / each
MNE300ROSIE-240F. Follower E-panel for a compatible multi-Rosie inverter installation.
Rosie 120/240V E-Panel
$1,586.52 USD / each
MNE300ROSIE-240P100. E-panel for the compatible Rosie 120/240V inverter system.
Rosie Mounting Backplate
$247.68 USD / each
MNROSIE BACKPLATE. Mounting backplate for the Rosie inverter and Rosie breaker box; hardware included.
Need help choosing?
Tell me what you need to run, which batteries you have, and whether your system is off-grid or has utility backup. I'll help you choose the equipment and put together a practical system quote.
Doug Mycko • SolarMan Consulting, LLC
Solar design, equipment supply, troubleshooting and commissioning support for Hawaii.