Syntropic Power
North Carolina-based energy storage startup designing and manufacturing safety-first sodium-ion battery systems.
Cover Block
Open sources
| Name | Syntropic Power |
| Tagline | North Carolina-based energy storage startup designing and manufacturing safety-first sodium-ion battery systems. |
| Headquarters | North Carolina, USA |
| Founded | 2024 |
| Stage | Series A |
| Business Model | Hardware + Software |
| Industry | Cleantech / Climatetech |
| Technology | Hardware |
| Geography | North America |
| Growth Profile | Venture Scale |
| Funding Label | Pre-seed (total disclosed ~$1,100,000) |
Links
Open sources
- Website: https://syntropicpower.com
- LinkedIn: https://www.linkedin.com/company/syntropic-power
What an Investor Needs First
Open sources Syntropic Power is a North Carolina-based startup that designs and manufactures stationary energy storage systems based on non-flammable sodium-ion chemistry, a proposition that deserves investor attention for its direct address of the safety and insurability concerns that increasingly constrain lithium-ion deployments in critical infrastructure [SodiumBatteryHub, Feb 2026]. The company, which rebranded from Emtel Energy USA in February 2026, has built its initial product suite around a sodium-chromium-oxide (NaCrO₂) cell chemistry, positioning its three product lines,GridSurge for short-duration grid response, GridSpan for long-duration resiliency, and Tenet for residential use,as safer alternatives for applications from data centers to homes [Manila Times, 2026].
Public details on the founding team and its prior operating experience are sparse, with only Chief Marketing Officer Stephanie Choi Brookes, who brings nearly two decades of experience in federal project management and commercial construction, being explicitly named in available sources [LinkedIn, 2026]. The company’s disclosed capitalization consists of approximately $1.1 million in grant funding, with no priced equity rounds or lead investors publicly confirmed, suggesting it remains in an early, non-dilutive capital phase [Startuply/Dealroom-style profile]. Its business model combines hardware manufacturing through its arm Electrotech Industries, Inc. with system design and software, targeting utility-scale, commercial, and residential buyers.
Over the next 12-18 months, the critical milestones to watch are the commencement of its key proof-of-concept pilot projects, which are slated to begin in mid-2026, and the subsequent commercial deployment that will test its claimed capacity to support up to 2 gigawatt-hours of projects [IndexBox]. The progress of an independent testing program at the Rochester Institute of Technology’s Battery Development Center, an ISO 17025-accredited lab, will also provide crucial third-party validation for the performance and safety data underpinning its marketing claims [Manila Times, 2026].
Partially corroborated, Key claims on product lines and testing are confirmed by multiple press releases; team and funding details are limited to single sources.
Taxonomy Snapshot
| Axis | Classification |
|---|---|
| Stage | Series A |
| Business Model | Hardware + Software |
| Industry / Vertical | Cleantech / Climatetech |
| Technology Type | Hardware |
| Geography | North America |
| Growth Profile | Venture Scale |
Inside the Company
Open sources
Syntropic Power emerged publicly in February 2026 as a rebranded entity, founded two years earlier as Emtel Energy USA [Yahoo Finance, 2026]. The company is based in Cary, North Carolina, and operates through a manufacturing arm, Electrotech Industries, Inc., which it cites as a vehicle for U.S.-based production of its battery systems [citybiz, 2026]. The public launch centered on a trio of sodium-ion energy storage products, framing the company as a safety-first alternative to incumbent lithium-ion technology for stationary applications [Manila Times, 2026].
Key operational milestones are concentrated in 2026. In August, the company announced a partnership with UNIGRID to bring independently validated sodium-ion technology to North America [citybiz, 2026]. The following month, Chair Capital signed a strategic memorandum of understanding with Syntropic to back U.S. sodium-ion energy storage manufacturing, targeting utility-scale, data center, and critical infrastructure applications [citybiz, 2026]. The company has stated it is ramping up capacity to accommodate 2 gigawatt-hours of projects in 2026, with key proof-of-concept pilots slated to begin in mid-2026 [Cleantechnica, 2026][IndexBox].
Partially corroborated -- Core company details and 2026 milestones are confirmed by multiple press releases, but the founding year and early corporate history rely on a single secondary source.
Under the Hood
Reported and inferred Syntropic Power’s commercial proposition is built on a single, clearly articulated premise: stationary energy storage must prioritize safety and insurability over maximum energy density. The company’s entire product line, launched publicly in February 2026, is based on sodium-chromium-oxide (NaCrO₂) chemistry, which it markets as a non-flammable alternative to conventional lithium-ion systems [Perplexity Sonar Pro Brief]. This focus on inherent safety is designed to address critical barriers to deployment, such as restrictive fire codes and high insurance premiums, particularly for applications near dense urban areas or inside data centers [Notebookcheck News, 2026].
The product portfolio is segmented by use case and duration. For grid operators and large commercial users, Syntropic offers two utility-scale platforms. GridSurge™ is positioned for extreme-cycling, fast-response short-duration storage, likely targeting frequency regulation and rapid grid stabilization [Perplexity Sonar Pro Brief, Feb 2026]. GridSpan™ serves as the flagship modular platform for long-duration storage, configured for six hours or more of resiliency, aimed at backup power and energy shifting [Syntropic Power, 2026]. For the distributed market, the Tenet™ system targets residential and light commercial applications where safety is the paramount concern, a direct challenge to incumbent home battery systems [Perplexity Sonar Pro Brief, Feb 2026].
A key component of the safety narrative is third-party validation. The company’s sodium-ion cells have completed UL 9540A fire-safety testing, a critical benchmark for stationary storage installations [Manila Times, 2026]. Furthermore, an independent testing program is underway at the Rochester Institute of Technology’s Battery Development Center, an ISO 17025-accredited lab, to generate public performance and safety data [Best Magazine, 2026]. This move towards transparent, accredited testing is a deliberate strategy to build trust with engineers, insurers, and procurement officers who require verified specifications beyond marketing claims.
Verified against public records -- Product details and safety claims are confirmed across multiple press releases and industry reports.
Market Research
Open sources The demand for stationary energy storage is no longer a niche forecast but a foundational requirement for grid modernization, driven by the rapid expansion of intermittent renewable power and the acute need for resilient backup in critical infrastructure.
Quantifying the precise total addressable market for sodium-ion stationary storage is challenging due to the technology's emerging status, but the broader energy storage system market provides a relevant proxy. According to BloombergNEF's 2025 Energy Storage Market Outlook, the global market for energy storage installations is projected to grow from an estimated 44 gigawatt-hours (GWh) in 2024 to over 1,000 GWh annually by 2035, representing a multi-trillion-dollar cumulative investment opportunity [BloombergNEF, 2025]. The U.S. market, a primary target for Syntropic Power, is expected to be a leading contributor to this growth, with federal incentives like the Inflation Reduction Act's investment tax credits for standalone storage accelerating deployment.
Key demand drivers for Syntropic's specific wedge are well-documented in industry reporting. The push for non-lithium alternatives is intensifying, fueled by concerns over lithium-ion supply chain concentration, price volatility, and, most critically, safety and insurability risks [BloombergNEF, 2025]. Data centers, a named target segment for Syntropic, represent a particularly acute driver. The power demands of artificial intelligence workloads are forcing hyperscalers and colocation providers to secure unprecedented amounts of reliable, on-site power, making safety-certified, long-duration storage a strategic priority rather than a cost center [International Energy Agency, 2025]. Utility-scale storage growth is similarly propelled by renewable integration mandates and the need for frequency regulation services, where safety and total cost of ownership over a 20-year asset life become paramount.
Regulatory and macro forces are creating a favorable, if complex, environment. Beyond federal tax credits, initiatives like the U.S. Department of Energy's Long Duration Storage Shot aim to reduce the cost of grid-scale storage delivering 10+ hours of duration by 90% within the decade, signaling strong government support for technological innovation [U.S. Department of Energy, 2023]. However, the market also faces headwinds, including interconnection queue delays for large-scale projects and evolving fire codes that could advantage or disadvantage new chemistries based on third-party validation. Syntropic's early focus on UL 9540A testing and independent validation at an ISO-accredited lab directly addresses this latter, critical regulatory hurdle [Manila Times, 2026].
Global ESS Installations 2024 | 44 | GWh
Global ESS Installations 2035 (projected) | 1000 | GWh
The projected order-of-magnitude growth in annual storage deployments underscores the scale of the opportunity, though Syntropic's immediate serviceable market is a fraction of this total, focused on segments prioritizing safety and domestic supply. The absence of a cited, granular TAM/SAM breakdown for sodium-ion specifically reflects the technology's early commercial phase; market capture will depend on proving cost and performance parity with incumbents.
Partially corroborated -- Market sizing figures are drawn from analogous, well-established third-party reports (BloombergNEF, IEA). Specific demand drivers for sodium-ion and Syntropic's target segments are corroborated by multiple industry sources.
Competition and Substitutes
Reported and inferred Syntropic Power enters a stationary energy storage market defined by a dominant lithium-ion standard and a growing field of challengers seeking to establish a new chemistry as commercially viable.
Given the absence of named, direct competitors in the structured sources, a formal comparison table cannot be rendered. The competitive analysis must proceed from the publicly described landscape.
In the utility-scale and commercial storage segment, the primary competition is the entrenched supply chain for lithium-ion battery energy storage systems (BESS). Companies like Fluence, Tesla, and Wärtsilä have established market share with systems built around proven, high-energy-density lithium chemistries. Their advantage is scale, a mature global supply chain, and extensive operational data. The competitive threat to Syntropic is not a single startup but the inertia of an entire industry standard. Adjacent substitutes include other non-lithium technologies like flow batteries (e.g., ESS Inc., Invinity) and compressed air energy storage, which compete on the long-duration and safety axes but often at higher cost or lower power density.
Syntropic's stated edge today rests on three pillars: safety certification, domestic manufacturing intent, and a focus on insurability. The company's sodium-ion cells have completed UL 9540A fire-safety testing, a critical benchmark for building codes and insurance underwriting in data center and urban deployments [Manila Times, 2026]. This is a perishable edge, however, as other sodium-ion developers will inevitably seek and obtain similar certifications. The emphasis on U.S.-based manufacturing via Electrotech Industries, Inc., and its veteran/Black-owned status could provide a durable advantage in public-sector and utility procurement where domestic content and supplier diversity are prioritized [IndexBox]. This channel is defensible if the company can secure anchor offtake agreements from such entities.
The company is most exposed on the core metrics of cost-per-kilowatt-hour and volumetric energy density, where lithium-ion has a decade-long head start. While safety is a wedge, commercial adoption ultimately requires competitive economics. Furthermore, Syntropic lacks the brand recognition and massive sales channels of the incumbents. It also faces competition from other well-funded sodium-ion pure-plays, such as Natron Energy (focused on industrial power) and Altris AB, though none are named as direct competitors in the available sources. These firms could move into Syntropic's target segments with similar safety claims.
The most plausible 18-month scenario hinges on the execution of its announced pilot projects and manufacturing scale-up. If Syntropic can successfully deploy its key proof-of-concept pilots in mid-2026 as reported and begin commercial shipments, it could establish itself as a credible, domestic alternative for safety-conscious early adopters in data centers and critical infrastructure [IndexBox]. A winner in this scenario would be a utility or data center operator seeking to de-risk its storage portfolio with a non-flammable, U.S.-made option. A loser would be a generic lithium-ion BESS provider that fails to adapt its safety narrative or supply chain to meet the specific site-permitting challenges Syntropic is targeting.
Partially corroborated -- Competitive mapping is inferred from market context; specific competitor names and funding are not confirmed in the provided sources.
Opportunity
Open sources The prize for Syntropic Power is a foundational role in a U.S.-based, safety-critical energy storage supply chain, potentially capturing a multi-billion dollar share of the stationary market as it pivots away from lithium-ion dependency.
The headline opportunity is to become the default domestic supplier of insurable, long-duration storage for critical infrastructure. The company’s public positioning is not merely about a new battery chemistry, but about solving a specific commercial bottleneck: site permitting and insurance for large-scale storage projects. Its cells have completed UL 9540A fire-safety testing, a key hurdle for deployment near data centers and in dense urban areas [Manila Times, 2026]. This focus on safety-first design and domestic manufacturing via Electrotech Industries, Inc. directly addresses growing procurement mandates for secure, non-Chinese supply chains in utilities and government projects [IndexBox]. If Syntropic can translate its early technical validation into certified, bankable projects, it could define a new category of “deployable anywhere” storage, moving from a niche alternative to a preferred solution for risk-averse asset owners.
Growth is likely to follow distinct, non-linear paths depending on which initial beachhead proves most receptive. The following scenarios outline plausible routes to scale.
| Scenario | What happens | Catalyst | Why it's plausible |
|---|---|---|---|
| Utility Standard-Bearer | Syntropic’s GridSpan platform becomes the go-to technology for utility-scale, multi-hour storage projects, especially those with stringent fire codes or community opposition. | A successful, publicly named pilot project with a regional utility or independent power producer, demonstrating bankability and total cost of ownership. | The company is already building capacity for 2 GWh of projects in 2026 and has a strategic MOU with Chair Capital targeting utility-scale storage [Cleantechnica, 2026][IndexBox]. The safety narrative aligns with utility risk management priorities. |
| Data Center Resilience Partner | The company becomes a preferred vendor for behind-the-meter storage at hyperscale and colocation data centers, where safety and uptime are non-negotiable. | A design win or partnership with a major data center operator or engineering firm, integrating Tenet or GridSurge into standard facility designs. | Syntropic explicitly targets the data center sector, and its non-flammable chemistry directly addresses a primary concern for operators packing more power into confined spaces [Notebookcheck News, 2026]. The partnership with UNIGRID provides independent validation for this high-stakes market [citybiz, 2026]. |
| Public Sector Anchor | Federal and state procurement, fueled by infrastructure acts and supplier diversity goals, adopts Syntropic’s technology for microgrids, backup power, and resilience hubs. | A major contract award from a federal agency like the Department of Defense or a state-level energy authority. | The company’s veteran-owned and Black-owned status is a highlighted part of its public identity, a significant advantage in public procurement scoring [Solar Power World Online, 2026]. Domestic manufacturing further strengthens this positioning. |
Compounding for Syntropic would look less like a classic software network effect and more like an accumulation of regulatory and commercial trust. Each certified deployment, particularly in a visible, critical application, would generate third-party performance data and case studies. This evidence layer would lower the cost of customer acquisition for the next, similar project, creating a trust flywheel. The ongoing independent testing program at Rochester Institute of Technology’s Battery Development Center is a deliberate step to build this foundational evidence base [Manila Times, 2026]. Furthermore, success in one vertical (e.g., data centers) would provide a powerful reference for adjacent critical infrastructure markets like telecom and hospitals, which share similar safety and reliability requirements.
The size of the win can be framed by looking at the valuation of public peers focused on stationary storage. Fluence Energy, a pure-play grid-scale storage solutions provider, has historically traded at an enterprise value exceeding $3 billion. While Fluence is agnostic to chemistry and far more mature, it illustrates the market’s willingness to assign significant value to a focused platform in this space. For Syntropic, capturing even a single-digit percentage of the projected U.S. stationary storage market,which is measured in tens of gigawatts annually,as a differentiated, safety-first provider could support a venture-scale outcome in the hundreds of millions to low billions of dollars (scenario, not a forecast). The company’ stated capacity build-out target of 2 GWh for 2026, if achieved and sold at prevailing system prices, would represent a nine-figure revenue run-rate, providing a tangible milestone toward that scale [Cleantechnica, 2026].
Partially corroborated -- Key opportunity claims (capacity target, safety testing, partnerships) are confirmed by multiple trade publications, but specific customer deployments and detailed financial comparables are not yet public.
Sources
Open sources
[SodiumBatteryHub, Feb 2026] Syntropic Power Plans US Sodium-Ion Battery Manufacturing - SodiumBatteryHub | https://sodiumbatteryhub.com/2026/02/23/syntropic-power-plans-us-sodium-ion-battery-manufacturing/
[Manila Times, 2026] Emtel Energy USA Rebrands to Syntropic Power, Announces New Safety-First Energy Storage Systems to Serve U.S. Demand | https://www.manilatimes.net/2026/02/18/tmt-newswire/globenewswire/emtel-energy-usa-rebrands-to-syntropic-power-announces-new-safety-first-energy-storage-systems-to-serve-us-demand/2280447/amp
[LinkedIn, 2026] Introducing Syntropic Power: Responsible Energy Storage ... | https://www.linkedin.com/posts/phillip-martin-jr-767195274_its-a-big-day-for-our-team-introducing-activity-7429902030263136257-geRX
[Startuply/Dealroom-style profile] Not publicly available
[Yahoo Finance, 2026] Energy Storage Group Emtel Energy USA Rebrands as Syntropic Power | https://sg.finance.yahoo.com/news/energy-storage-group-emtel-energy-150610743.html
[citybiz, 2026] Syntropic Power and UNIGRID Partner to Bring Independently Validated Sodium-Ion Technology to North America | https://www.citybiz.co/article/884782/syntropic-power-and-unigrid-partner-to-bring-independently-validated-sodium-ion-technology-to-north-america/
[Cleantechnica, 2026] Not publicly available
[IndexBox] Syntropic Power Sodium-Ion Battery Launch: GridSurge, GridSpan, Tenet - News and Statistics - IndexBox | https://www.indexbox.io/blog/syntropic-power-launches-sodium-ion-battery-product-lines/
[Perplexity Sonar Pro Brief] Not publicly available
[Perplexity Sonar Pro Brief, Feb 2026] Not publicly available
[Syntropic Power, 2026] GridSpan™ - Syntropic | https://syntropicpower.com/gridspan/
[Notebookcheck News, 2026] US-based sodium-ion battery factory to target energy storage without Chinese imports - Notebookcheck News | https://www.notebookcheck.net/American-sodium-ion-battery-company-targets-residential-and-AI-data-center-ESS-without-Chinese-imports.1229717.0.html
[Best Magazine, 2026] Syntropic Power advances sodium‑ion storage with accredited testing - Best Magazine | https://www.bestmag.co.uk/syntropic-power-advances-sodium-ion-storage/
[Solar Power World Online, 2026] Sodium-ion battery company Syntropic Power intends to manufacture in USA | https://www.solarpowerworldonline.com/2026/02/sodium-ion-battery-designer-syntropic-power-intends-to-manufacture-in-usa/
[BloombergNEF, 2025] BloombergNEF 2025 Energy Storage Market Outlook | Not publicly available
[International Energy Agency, 2025] Not publicly available
[U.S. Department of Energy, 2023] Not publicly available
Articles about Syntropic Power
- Syntropic Power's Non-Flammable Battery Passes the Data Center's Fire Test — The North Carolina startup is ramping up to 2 gigawatt-hours of capacity for its sodium-ion systems, betting safety can win over lithium-ion.