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Every TenK site can be RE-Powered.
Global RAIS® is the new owner of TenK technology. We replace the failed legacy inverters on original TenK arrays with modern, high-reliability NEP microinverters and add module-level monitoring, so the modules on your roof get back to full harvest.
Minneapolis Airport, fully RE-Powered.
Most TenK sites are original installations, unchanged for the last ten years. Minneapolis Airport shows what a full-site RE-Power delivers: every legacy inverter replaced, monitoring added, and the original TenK modules kept in service.
Minneapolis Airport
- 2.7MW
- Full-site RE-Power
- 2,850
- Inverters replaced
- 40%
- Harvest recovery
- Added
- PV module monitoring
- Original install2014 to 2015, installed by Ameresco
- RE-Power EPCApadana Energy
- InvertersEvery legacy inverter replaced with NEP BDM-800 microinverters
- MonitoringNEPViewer module-level monitoring added
- Modules6,730 original TenK 410 W modules reused, still high reliability
- ResultInverter power and reliability recovered for maximum harvest
The modules are fine. The inverters weren’t.
TenK delivered hundreds of C&I projects from 100 kW to 2 MW between 2012 and 2016, with roughly 30% more rooftop energy density and safe DC under 60 V. The weak link was the original inverter supply.
ProblemLegacy inverters failing
- Water ingress caused early failures of the original microinverters
- The original inverter suppliers are no longer in business
- The shared bus keeps sites running, so failures go unnoticed while output limps along
- Sites designed for full output are producing a fraction of it
SolutionNEP BDM-800 replacement
- Modern, proven microinverters from NEP, with 15 years of microinverter experience
- Higher capacity: 800 Wac versus 700 Wac legacy units
- Module-level monitoring through the NEP gateway and NEPViewer
- 25-year manufacturer warranty, original target performance recovered
Assess
Review the as-builts, site photos and production history. Independent engineering is available when owners need it.
Replace
Swap legacy LS700 units on each Redundant Inverter Bus plate for NEP BDM-800 microinverters and NEP trunk connectors.
Connect
Install the NEP 3-phase gateway for power-line communication and module-level visibility.
Recover
Restore full system output, with real-time diagnostics that cut truck rolls for years to come.
Every TenK site needs Inverter RE-Powering.
More than 600 larger TenK sites were installed across the country, concentrated in the Upper Midwest and the Northeast. If your site is one of them, its modules can be recovered.
Original TenK sites. Larger dots are larger systems.
Seven C&I rooftops, RE-Powered.
In Q1 2025, seven dialysis clinics in Northern Alabama and southern Tennessee were RE-Powered with NEP BDM800-GR microinverters on the Global RAIS® Redundant Inverter Bus, without disrupting clinical operations.
| Clinic | AC capacity | TenK modules | NEP inverters |
|---|---|---|---|
| Elk River, Fayetteville TN | 21.6 kW | 82 | 36 |
| Scottsboro, AL | 36.0 kW | 120 | 60 |
| Albertville, AL | 36.0 kW | 120 | 60 |
| Cullman, AL | 25.2 kW | 66 | 42 |
| Lakeview, Arab AL | 31.5 kW | 102 | 54 |
| Chase, Huntsville AL | 37.8 kW | 120 | 60 |
| Endeavor, Huntsville AL | 27.0 kW | 96 | 48 |
| 7 sites | 215.1 kW | 706 | 360 |
- Architecture36 RIBs, each with 12 NEP BDM800-GR microinverters in parallel on a shared DC bus
- MonitoringPower-line communication with module-level, real-time reporting
- Warranty25 years on every new inverter
- TeamGlobal RAIS® site coordination, Thomas Electric of Huntsville as electrical contractor
With no high-voltage DC present on the roof and a fully distributed, redundant inverter design, we have confidence knowing our clinics are supported by one of the safest and most robust solar platforms available.
Dr. Todd Broome, Clinic Owner
The team behind every RE-Power.
Global RAIS® owns the TenK technology and coordinates each project, working with proven partners for inverters, installation and independent engineering.
Northern Electric Power (NEP)
Co-developed the BDM-800 for TenK panels with Global RAIS®. 95.5 to 96.5% efficiency, 25-year warranty and integrated monitoring.
Apadana Energy
Executed the full-site Minneapolis Airport RE-Power. Solar, EV charging and battery storage.
Mayfield Renewables
When owners need an independent review of a RE-Power plan: as-built review, inverter compatibility, interconnection compliance and updated documentation.
The new TenK, in the news.
How Global RAIS® brought TenK technology back and set out to recover the installed base through inverter upgrades and replacements.
Aging solar projects find new lease on operating life with repowering
Global RAIS® and NEP repower TenK arrays, with some sites going from 30 to 40% of capability back up to 100%.
Global RAIS resurrects tenKsolar’s panel and racking technology
The announcement of Global RAIS® as the path to recover the installed base of TenK systems.
Own a TenK site? Let’s recover it.
Send us the site location, system size and what you are seeing in production. We will come back with a RE-Power plan and estimate.