Built in Northwest NM • UL 9540 Pending • PE-Sealed

We build the battery containers the big guys won't.

DESS CO is a small, engineer-owned shop out of the Mountain West building BESS containers for the projects the Tier-1 vendors keep ghosting — co-ops, municipals, military sites, and the "too small to bother with" commercial jobs. We design it, we stamp it, we wire it, we energize it. Same crew, start to finish.

DESS CO S-BLOCK 6.6 MWh custom battery energy storage enclosure
6.6 MWh
Capacity
2.1 MVA
Power
4-HR
Duration
LFP
Chemistry
UL 9540 Pending UL 9540A Testing In Progress NFPA 855 Compliant NEC Article 706 IEEE 1547 / UL 1741 FEOC Compliant Cells ITC Eligible PE-Sealed Engineering Licensed CO, NM & UT Contractors Domestic Content Bonus UL 9540 Pending UL 9540A Testing In Progress NFPA 855 Compliant NEC Article 706 IEEE 1547 / UL 1741 FEOC Compliant Cells ITC Eligible PE-Sealed Engineering Licensed CO, NM & UT Contractors Domestic Content Bonus

Built by the engineers who stamp the drawings.

DESS CO brings PE-sealed engineering, electrical contracting, and commissioning under one roof. Same engineers draw it, same electricians wire it, same crew shows up for startup. When a question comes in at 2 a.m., you call the person who built it — direct.

The drawings are stamped by the guy you'll be on the phone with.

No drop-shipped engineering from a contract shop in another state. The PE who sealed your one-line is the same one who'll pick up the phone when the AHJ has a question during plan review.

Our electricians are W-2, not 1099s we found last week.

Full-time Journeyman and Master Electricians, licensed in CO and NM, on payroll year-round. We know what they're good at and where they need a second set of eyes — because we've worked with them for years, not days.

The cells come from Michigan. The assembly happens here.

LG LFP cells out of Holland, MI. US-built PCS. Domestic steel container. It qualifies for the 10% ITC domestic content adder — and more importantly, we can drive to the cell factory if we need to.

Fire safety is our #1 priority.

Fike Blue suppression, Bender insulation monitoring on every string, NFPA 69 forced ventilation, and deflagration vent panels — engineered in from day one on every build.

6.6+
MWh Per Unit
2.1
MVA Power
4-HR
Duration
SiC
PCS Technology
30'
Custom Enclosure
18
Battery Racks

Meet the S-BLOCK.

It's a 30-foot custom enclosure with 6.6 MWh of LFP cells, four SiC inverters, and a fire suppression system we picked because it's the only one we'd actually trust around our own crew. Here's what's inside — and why we picked each piece.

S-BLOCK 6.6
6.61 MWh · 2.148 MVA

30-ft custom enclosure · 4-hour duration · Medium-voltage interconnection

~6.61
MWh Gross Capacity
2.148
MVA Total Power
18
LFP Battery Racks
SiC PCS Modules
537
kVA Per PCS
LFP
Cell Chemistry
Nuvation
G5 BMS
Fike
Blue Suppression

LG Energy Solution LFP Cells

FEOC-compliant cells manufactured in Holland, Michigan. UL 1973 listed with 6,000+ cycle life at 80% depth of discharge. Thermal runaway onset at ~270°C.

EPC Power Series M SiC Inverters

4× modules at 537 kVA each delivering 2.148 MVA total. Silicon carbide topology for higher efficiency, lower losses, and reduced cooling requirements.

Nuvation G5 Battery Management

UL-Recognized BMS with cell-level voltage monitoring (±1 mV), multi-stack control, passive balancing, and functional safety certification to UL 991/1998.

Fike Blue Fire Suppression

The first third-party tested system proven to suppress both fire AND cascading thermal runaway. Paired with deflagration vent panels and NFPA 69 forced ventilation.

Active Liquid Cooling

Precision thermal management maintaining ±3°C uniformity across all 18 racks. Optimizes cycle life and ensures peak performance in desert and mountain climates.

EMS / SCADA Integration

Modbus TCP, DNP3, and SunSpec protocols. Remote monitoring, dispatch optimization, predictive maintenance, and full utility SCADA integration.

Medium Voltage Interconnection

Pad-mount step-up transformer, 600V AC bus with UL 508A switchgear, independent DC combiner boxes with Bender iso685-S insulation monitoring per string.

More than just selling boxes.

The container is the product, but it's not the whole job. Most of our weeks are spent in AutoCAD, on-site with a megger, or on the phone with a utility planner trying to get an interconnection moved up by three weeks. Here's the work we sign our name to.

BESS Engineering

Full design packages from the napkin sketch all the way to as-builts. If it has a battery and a transformer, we can draw it, stamp it, and defend it in a plan review meeting.

  • System one-line and three-line diagrams
  • DC and AC architecture design
  • Protection coordination studies
  • UL 9540 certification documentation
  • Interconnection study support
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Substation & Infrastructure

Distribution and small substation work — the kind of jobs the big EPCs price themselves out of. Pad design, grounding grid, MV gear, the whole bit. We've done dozens of them.

  • Electrical one-lines and feeder schedules
  • Structural calculations and foundations
  • Grounding and bonding design
  • MV/LV distribution engineering
  • Civil site plans and grading
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Power System Studies

Arc flash, short circuit, coordination — the studies that get skipped until an inspector flags them. We run them in SKM and ETAP and we'll walk the AHJ through the results ourselves.

  • Arc flash and short circuit studies
  • Protection coordination
  • Load flow and voltage drop analysis
  • Compliance letters and documentation
  • Third-party drawing review / QA/QC
☀️

Solar + Storage

If there's already a PV array on the site, we'll design the storage to live next to it without blowing up the interconnection agreement. Most of our BESS projects start as "can you co-locate with our existing solar?"

  • PV system design and layout
  • Electrical collection system design
  • Tracker foundation engineering
  • Interconnection applications
  • Permitting packages
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Commissioning & O&M

The unsexy part nobody wants to talk about. We'll cycle the system, watch the data, write the punch list, and come back when something throws a fault code six months later.

  • Factory and site acceptance testing
  • Performance verification and tuning
  • SCADA integration and monitoring
  • Preventive maintenance programs
  • Warranty support and troubleshooting
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Hybrid & Microgrid

Solar + battery + diesel for the places where the grid doesn't reach or can't be trusted. We've built these for remote pumping stations, off-grid ranches, and one very stubborn ham radio repeater.

  • Solar + battery + generator integration
  • Off-grid and microgrid design
  • Islanding and grid-forming controls
  • Critical facility backup systems
  • Remote site power solutions

From dirt to first kWh.

We've done this enough times to know where projects get stuck. Most of the schedule risk lives in steps 3 and 5 — the utility and the AHJ — and we plan around that from day one. Here's the actual sequence.

01

Site Assessment & Civil Prep

Geotechnical evaluation, foundation design, reinforced concrete pad, and site grading per ASCE 7 seismic and wind requirements.

02

Container Delivery & Placement

Crane operations, container rigging, precision placement on prepared foundations. Anchor bolt installation and seismic restraint verification.

03

Medium Voltage Interconnection

Pad-mount transformer installation, MV cable termination, switchgear connection, protective relay programming. Full utility coordination through NTP.

04

AC/DC Electrical Termination

600V AC bus wiring, DC combiner box connections, PCS commissioning, BMS communication verification, Megger insulation resistance testing.

05

Safety Systems Verification

Fire suppression functional test, gas detection calibration, e-stop chain verification, ventilation system commissioning, NFPA 70E arc flash labeling.

06

Commissioning & Energization

Full charge/discharge cycling, round-trip efficiency measurement, load bank testing at 25/50/75/100%, SCADA integration, utility witness test, and handoff.

We sell nationwide. We install where we're licensed — or alongside your local EC.

DESS CO manufactures, tests, and ships its BESS containers anywhere in the continental US. We perform turnkey installation and commissioning in states where we hold an Electrical Contractor license (CO, NM, UT — AZ pending). For projects outside those states, we deliver the finished, PE-sealed system and either bring in a trusted local licensed EC partner, or work alongside the contractor your project already has straight through commissioning and energization.

Our own field crews are permanent, full-time employees — State Licensed Journeyman and Master Electricians. Every project is fully insured with comprehensive "Ultra" liability coverage.

CO Electrical Contractor — EC LIC #100862
NM Electrical Contractor — EE98-399687
UT Electrical Contractor — E200-13440229-5501
AZ Electrical Contractor — Pending
Colorado PE License — Power Systems
OSHA 30 Trained Field Crews
NFPA 70E Arc Flash Certified
Nationwide BESS Deployment Capability
Schedule a Site Visit →

Designed for Safety.
Certified to Prove It.

Every DESS CO system is engineered from day one for UL listing, NEC compliance, and NFPA 855 fire safety. Not retrofitted. Not bolted on. Built in from the architecture up.

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UL 9540 Pending

NRTL-certified system-level safety evaluation — electrical, mechanical, thermal, and fire protection.

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UL 9540A Testing Pending

Four-level thermal runaway fire propagation testing — cell, module, unit, and installation level.

🔥

NFPA 855

Fire detection, suppression, explosion control, ventilation, and emergency response planning.

NEC Article 706

Complete disconnecting means, maintenance segmentation, emergency shutdown, and exterior labeling.

🌡️

Thermal Runaway Protection

Fike Blue suppression + thermal barriers + forced ventilation below 25% LEL per NFPA 69.

📡

Off-Gas Detection

PPM-level gas detection providing minutes of advance warning before thermal events propagate.

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FEOC Compliant

Non-prohibited battery entity cells eligible for full ITC under OBBBA legislation.

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IEEE 1547 / UL 1741

Smart inverter grid-support functions, ride-through, anti-islanding, and ramp rate control.

Built for the Communities
That Need It Most

We target the underserved markets where the big OEMs don't show up — rural co-ops, municipal utilities, remote installations, and critical commercial facilities.

Utilities

Rural Electric Cooperatives

ITC-eligible, turnkey BESS for co-ops transitioning wholesale power contracts and joining organized markets. Sized right for distribution-level deployment at substations serving rural communities.

Commercial & Industrial

Behind-the-Meter Storage

Peak shaving, demand charge management, and backup power for commercial facilities, data centers, and industrial operations. Custom-engineered for each site's specific load profile and rate structure.

Off-Grid & Military

Microgrids & Remote Power

Solar + storage + generator hybrid systems for remote communities, mining operations, military installations, and critical infrastructure requiring BABA compliance and energy independence.

Got a project you can't get a callback on?

If you're a co-op GM, a city engineer, or a developer who's been quoted "we'll get back to you next quarter" by the big vendors — send us the one-line. We answer our own phone and we'll tell you in a week whether we can help.

Send us your one-line.

Or a sketch on a napkin, or a forwarded email from the utility, or whatever you've got. Real people read these — usually within a few hours during the workday, by the next morning if it's late.

📞

Phone

Nickolas Eubanks: (725) 314-6644
Dan King: (970) 946-3281

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📍

Office

Aztec, New Mexico

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Hours

Monday – Friday: 8 AM – 5 PM
Emergency services available 24/7