Accelerator Portfolio Company · 2026
Sodium-ion batteries engineered for mission-critical infrastructure, industrial fleets, and reliable power across every application.
Techstars 2026 — Accelerator Portfolio CompanyTechstars 2026 — Accelerator Portfolio CompanyFrom military forward operating bases to commercial rooftops and industrial facilities, our sodium-ion technology powers the operations that can't afford to stop.
BESS ready to install with PCS, EMS, and AI software to maximize utility bill savings and provide resiliency — across critical infrastructure, grid-edge, large commercial, and remote power applications.
Explore C&I Solutions
Sodium-ion batteries engineered for extreme environments, domestic supply chain compliance, and mission-critical reliability.
Defense Solutions
Drop-in sodium-ion replacements for lead-acid in forklifts, golf carts, material handling fleets, and airport ground support equipment. Safer, extreme-temperature tolerant, zero maintenance.
Fleet SolutionsCoulomb Technology's sodium-ion BESS is purpose-built for the four C&I verticals where battery economics, safety, and reliability matter most — from life-critical facilities to remote off-grid deployments.
Backup power and demand management for facilities where outages are unacceptable. Sodium-ion's zero-fire-risk chemistry meets the safety requirements of life-critical environments.
Demand charge reduction, solar self-consumption, and EV charging optimization for facilities near the public grid edge. Scalable from single-site to portfolio deployments.
Peak shaving, backup power, and demand response for high-load commercial facilities. Purpose-built for environments with extreme demand charges and 24/7 operations.
Standalone and hybrid power for remote sites where grid connection is impractical or unavailable. Extreme-temperature tolerance from −40°F to 140°F without active thermal management.
Coulomb Technology's fully integrated systems combine sodium-ion storage with AI-driven energy management — automatically maximizing savings, generating revenue, and keeping your operations running no matter what the grid does.
Every fully integrated Coulomb system ships with four proprietary software layers that work together to maximize the value of your energy storage investment.
Simplifies the utility interconnection process from application preparation and net metering enrollment to protection coordination and utility sign-off — reducing timelines from months to weeks.
The operating system for your energy assets. Real-time monitoring, automated dispatch, and full visibility into energy flows — accessible via web dashboard and mobile app for operators, property managers, and tenants.
Machine learning that learns your load profile, predicts utility pricing, and automatically executes the optimal charge/discharge strategy — maximizing savings and revenue with zero manual intervention required.
Connects your battery to demand response programs, capacity markets, frequency regulation, and virtual power plant networks — automatically enrolling and dispatching to earn revenue around the clock.
Coulomb AI™ continuously monitors solar generation, grid pricing, weather forecasts, and your facility's load profile — then automatically executes the best energy strategy every 15 minutes, 24/7.
Coulomb AI™ evaluates every opportunity and automatically executes the optimal strategy — no manual intervention required.
Charge when grid prices are low. Power your facility when prices peak. Coulomb AI automates every cycle.
Flatten your demand curve during peak windows. Eliminate the largest line item on your commercial utility bill.
Earn payments for demand response, frequency regulation, and capacity market participation through GridIQ™.
Join a VPP to earn additional revenue during grid stress events — your battery works for you around the clock.
Use our ROI calculator to estimate your projected savings and revenue — with and without solar — based on your facility size, location, and utility rate structure.
Thermal runaway in lithium-ion batteries creates mounting liability, insurance scrutiny, and AHJ approval friction — especially in enclosed industrial and defense environments. Coulomb Technology's sodium-ion chemistry is fundamentally non-flammable.
Lithium-ion batteries lose up to 30% capacity in cold climates and require expensive HVAC systems in hot environments — adding capital cost, energy overhead, and maintenance complexity to every deployment.
Lithium supply chains are concentrated in a handful of countries, creating tariff exposure, long lead times, and DOD compliance barriers. Sodium is the fourth most abundant element on Earth — with the largest reserves in the USA.
Coulomb Technology joined Techstars in 2026 to put sodium-ion energy storage in front of the utilities, defense primes, integrators and EPCs who need it most. The program pairs our battery science and AI dispatch software with a mentor network of grid operators, energy investors and manufacturing operators — and with lifetime access to the Techstars portfolio of 4,500+ companies.
Sodium-ion NFPP chemistry validated with Oak Ridge National Laboratory, Rutgers and NEI Corporation; $2.2M in non-dilutive funding secured.
U.S. Air Force SBIR ($600k) for the Kirtland AFB 837 kWh micro-grid and U.S. Navy SBIR P1 ($240k) for a 24V sodium-ion starter battery.
Joined the Techstars accelerator — mentor network, follow-on investor access and commercial introductions across energy and defense.
Portfolio expansion to five products, 200 systems/year supply-chain capacity and the domestic cell-manufacturing pathway.
Five sodium-ion BESS products — from 12V residential to 279 kWh commercial — built on non-flammable NFPP chemistry. Choose Smart EMS with built-in intelligence, or Core BESS for open-protocol integration.
Smart EMS products ship with EnergiOS™, Coulomb AI™, and GridIQ™ pre-installed — no third-party EMS, no integration fees, no separate licensing. Revenue-ready from day one.
279 kWh · Fully Intelligent · Turn-Key
The only commercial BESS that ships with a fully integrated AI energy platform. EnergiOS™, Coulomb AI™, and GridIQ™ are built in — not bolted on.
48V · 200 Ah · 9.8 kWh · Wall-Mount
Wall-mount residential and light commercial storage with integrated smart monitoring, solar self-consumption optimization, and time-of-use management.
| Specification |
Series-C
Commercial BESS
|
Series-R
Residential / Light Commercial
|
|---|---|---|
| Energy & Power | ||
| Nameplate Energy | 279 kWh | 9.8 kWh |
| Usable Energy | 229 kWh (85% DOD) | ~8.3 kWh (85% DOD) |
| Max Power | 140 kW | Inverter-dependent |
| Voltage | 634–994 VDC | 48V nominal |
| Duration | 2.2–10 hrs | Application-dependent |
| Chemistry & Longevity | ||
| Chemistry | Sodium-Ion NFPP | Sodium-Ion NFPP |
| Cycle Life (80% DOD) | 6,000+ | 6,000+ |
| Design Life | 20 Years | 20 Years |
| Operating Temp | −40°C to +55°C | −20°C to +60°C |
| Smart Technology | ||
| EMS Software | EnergiOS™ Built-In | Smart App + Remote Monitoring |
| AI Optimization | Coulomb AI™ Built-In | TOU & Solar Optimization |
| Grid Services | GridIQ™ — DR, VPP, Dispatch | — |
| Remote Diagnostics | Yes — OTA Updates | Yes |
| Communication | Modbus TCP / SCADA-ready | App / BMS |
| Installation & Format | ||
| Form Factor | Outdoor Cabinet (turn-key) | Wall-Mount |
| Inverter Included | Yes (integrated PCS) | No (pairs with any 48V inverter) |
| Thermal Runaway Risk | Zero | Zero |
| Target Customer | C&I, Multi-tenant, Microgrid | Homeowners, Small Commercial |
Core BESS products deliver the chemistry, BMS, and safety — you bring the inverter, EMS, and enclosure. Three open protocols (Modbus TCP, CAN Bus, RS-485) integrate with any platform. No licensing fees. No lock-in.
279 kWh · Open Protocol · Bring Your Own EMS
The battery core for integrators, EPCs, and OEMs. You supply the inverter and EMS — we handle the chemistry, BMS, and safety.
48V · 300 Ah · 14.4 kWh · IP54
Drop-in replacement for 48V lead-acid traction batteries. IP54-rated, 150A continuous discharge, non-flammable sodium-ion chemistry for enclosed vehicles.
12V · 30 / 60 / 100 Ah · Drop-In
Direct drop-in replacement for 12V lead-acid batteries. Three capacity options, non-flammable chemistry, zero maintenance — for RVs, marine, solar, and backup.
| Specification |
Series-DC
Commercial DC Block
|
Series-M
48V Traction Battery
|
Series-S
12V Drop-In
|
|---|---|---|---|
| Energy & Power | |||
| Nameplate Energy | 279 kWh | 14.4 kWh | 0.36 / 0.72 / 1.2 kWh |
| Nominal Voltage | 821 VDC | 48V | 12V |
| Capacity | — | 300 Ah | 30 / 60 / 100 Ah |
| Max Current | Inverter-dependent | 150A continuous | BMS-limited |
| Chemistry & Longevity | |||
| Chemistry | Sodium-Ion NFPP | Sodium-Ion NFPP | Sodium-Ion NFPP |
| Cycle Life (80% DOD) | 6,000+ | 6,000+ | 4,000+ |
| Design Life | 20 Years | 20 Years | 10 Years |
| Operating Temp | −40°C to +55°C | −20°C to +45°C | −20°C to +60°C |
| Integration & Protocols | |||
| Modbus TCP | ✓ | — | — |
| CAN Bus 2.0B | ✓ | — | — |
| RS-485 | ✓ | — | — |
| BMS Protections | 8 Intelligent | 8 Intelligent | 8 Intelligent |
| Form Factor & Target | |||
| Form Factor | Pallet-ship cabinet | Traction pack (IP54) | Drop-in module |
| Enclosure Rating | Outdoor-rated | IP54 | Standard |
| Target Customer | EPCs, Integrators, OEMs | Fleet operators, Warehouses | RV, Marine, Solar, Residential |
| Thermal Runaway Risk | Zero | Zero | Zero |
One Chemistry. Every Product.
Every product in the Coulomb portfolio — from the 12V Series-S to the 279 kWh Series-C — runs on the same sodium-ion NFPP (Non-Flammable Polyanion) chemistry. No thermal runaway. No maintenance. No compromise.
We are an American energy storage company combining deep battery science, AI-driven software, and a domestic supply chain to make sodium-ion the default choice for commercial, defense, and industrial energy storage.
The energy transition demands storage that is safer, smarter, and cheaper to own over its lifetime. Coulomb Technology was founded to solve exactly that — building sodium-ion battery systems that eliminate the safety, supply chain, and total cost problems that have held back commercial energy storage adoption.
We believe the best energy storage system is one that works autonomously, generates revenue while it protects your operations, and never requires a service call. That belief drives every design decision we make — from cell chemistry to software to interconnection workflow.
A phased roadmap from beachhead products (DC cabinet + starter battery) to a U.S. cell factory, turnkey integration services, and ultimately a full Energy-as-a-Service platform — making Coulomb the easiest sodium-ion platform to specify, integrate, commission, and support.
We win by becoming the easiest sodium-ion platform to specify, integrate, commission, and support — delivering proven ROI data, pre-certified interconnection workflows, and autonomous AI dispatch that eliminates the operational burden for every stakeholder in the value chain.
Our team brings together PhD battery scientists, systems engineers from Apple and Flex, energy industry veterans from Tesla and Natron Energy, and research institution collaborators from Oak Ridge National Laboratory and UT Austin — united by a single goal: making sodium-ion the default energy storage platform.
Multiple PhD-level scientists specializing in battery chemistry, DFT modeling, cell development, and materials science — with research partnerships at Oak Ridge National Laboratory, Stony Brook University, and UT Austin.
Hardware and software systems engineers with backgrounds at Apple, Flex, AMETEK, and Lyten — bringing manufacturing scale-up, embedded systems, and power electronics expertise to every product we ship.
Sales and operations leaders with 25+ years in EVs, chargers, and battery systems — drawing on experience from Tesla, Natron Energy, First Solar, and Eguana to build commercial channels and customer relationships.
Principal investigators at Oak Ridge National Laboratory and UT Austin, plus government affairs leadership with deep DOD and federal procurement expertise — enabling our Buy American Act and ITAR compliance pathway.
Three fundamental problems have held back commercial energy storage adoption. Our sodium-ion chemistry and AI-driven software platform eliminates all three simultaneously.
Sodium-ion chemistry is fundamentally non-flammable — no thermal runaway, no cobalt, no lithium. This eliminates the mounting insurance scrutiny, AHJ approval friction, and liability exposure that liquid-cooled lithium-ion creates in enclosed industrial and defense environments.
Air-cooled design eliminates the HVAC system required by liquid-cooled LFP — removing capital cost, energy overhead, and maintenance complexity. Combined with a 20-year projected battery life and 14% lower 15-year TCO, Coulomb systems deliver the best lifetime economics in the market.
The United States holds the largest sodium reserves in the world. Our domestic manufacturing pathway supports Buy American Act and ITAR compliance requirements for defense procurement — eliminating the geopolitical supply chain risk that defines every lithium-ion deployment today.
Our technology has been selected and funded by the U.S. Air Force and U.S. Navy — validating our sodium-ion platform in the most demanding operational environments in the world.
837 kWh DC block deployment at Kirtland Air Force Base. Proves cabinet integration and performance in mission-critical environments. Validates our air-cooled, sodium-ion BESS for defense infrastructure.
24V / 30Ah sodium-ion starter battery for military applications. Proves high-power discharge and starter duty-cycle validation. Pathway to Phase 2 manufacturing and field evaluation with major OEMs.
$2.2M in non-dilutive funding from government grants and founders — including California Energy Commission, NJ EDA Main Street Acquisition Support Grant, and New Energy New York CHARGE UP program.
Selected into the Techstars accelerator for 2026: investment, a 13-week mentor-driven program and lifetime access to a network of 4,500+ portfolio companies.
Research collaboration and principal-investigator partnership at Oak Ridge National Laboratory, advancing sodium-ion NFPP cell chemistry and DFT modelling.
Accelerator and grant support from Cleantech Open, New Energy New York CHARGE UP, NJ EDA and the California Energy Commission.
Whether you're an integrator, a facility owner, a utility, or an investor — we want to hear from you. Our applications engineering team is ready to model your project, answer your technical questions, and help you understand what Coulomb can do for your operation.
Contact our engineering team to discuss your application, get a custom system design, or schedule a live demo.
See the system in action or get pricing for your specific application, facility size, and deployment timeline.
Contact UsIntegrators, OEMs, and channel partners — explore how Coulomb Technology's technology fits your product roadmap.
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