Modual

What Modual does

Modual AG is a Swiss manufacturer of modular battery energy storage systems (BESS) built around second-life electric vehicle battery modules. The company operates from Brunnen, Switzerland (Seewenstrasse 13, CH-6440 Brunnen) as a privately held Swiss Aktiengesellschaft and was founded in 2021 with a team of approximately 20 employees spanning production, systems engineering, R&D, sales, and marketing. Its product portfolio — Series Basic (AC-coupled and DC-coupled variants) and Series Lite 2 — scales from roughly 11 kWh residential configurations to MWh-class industrial and grid assets, all managed by a proprietary Battery Management System (BMS) developed in-house specifically for second-life cells with cell-level access, and augmented by AI-driven anomaly detection for predictive maintenance.

Modual's core technology proposition rests on three elements: (i) flexible hardware interfaces that allow integration of heterogeneous second-life battery sources and supplier independence; (ii) a proprietary BMS providing deep per-cell monitoring and safety management optimized for repurposed modules; and (iii) AI-assisted predictive maintenance that detects behavioral deviations remotely. Commercial offerings include both AC-coupled plug-and-play systems (CEE16 connectors for fast retrofit installation) and DC-coupled configurations. The largest documented deployment is a ~500 kWh / 345 kW project built from eight repurposed e-truck traction batteries, commissioned in February 2026 to participate in the Swiss qualified balancing energy market (Swissgrid), operated via partner Primeo Energie as pool operator.

The business model is hardware sales of BESS units, with go-to-market executed through a self-serve web configurator (portal.modual.ch/konfigurator) generating quotes in approximately two minutes, complemented by distribution partners Krannich Solar and Otto Fischer and a network of certified installers. Typical residential installed systems run CHF 15,000–25,000+ before incentives, backed by a 10-year warranty. Customer segments span residential solar homeowners, commercial/industrial energy users, EV fleet operators (as both supply source and demand side), grid operators/utilities, and Swiss energy communities (ZEV/VZEV, with the 2026 Mantelerlass introducing Local Energy Communities). Revenue, ownership structure, and funding totals are not publicly disclosed.

Name

Modual

Legal name

modual AG

Website

https://modual.ch

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Modual AG is a Swiss manufacturer of modular second-life battery energy storage systems (BESS) that repurposes retired EV battery modules into storage solutions for residential, commercial, industrial, and grid-balancing applications, managed by a proprietary BMS.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Battery Second-Life Repurposing & Integration (Stationary Reuse, Repack/Remanufacture) (EUAFACAG)

Keywords

• Second-life batteries
• Battery energy storage
• Residential energy storage
• Commercial battery systems
• Circular economy energy

Headquarters

HQ city

Brunnen

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Second-Life Battery Energy Storage Systems (BESS): Modual generates revenue by selling second-life battery storage systems (both AC-coupled and DC-coupled) for residential, commercial, and industrial applications. Customers include homeowners with solar installations, farms, businesses, and energy communities. Pricing is hardware-focused with a 10-year warranty. Systems range from 11 kWh entry-level to multi-MWh large-scale storage installations.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Modual designs, manufactures, and sells modular second-life battery energy storage systems (BESS) repurposed from retired electric vehicle batteries. The portfolio includes AC-coupled and DC-coupled solutions ranging from 11 kWh residential units to multi-MWh industrial installations, managed by a proprietary Battery Management System (BMS) built specifically for second-life applications. Systems are sold direct via a web configurator, through distributors Krannich Solar and Otto Fischer, and installed by certified partners across Switzerland.

Product overview

Modual is Switzerland's leading manufacturer of second-life battery energy storage systems (BESS), transforming end-of-life EV batteries into modular storage solutions. The product portfolio consists of two main series: Series Basic (offered in both AC-coupled and DC-coupled variants) and Series Lite 2. These systems provide energy storage for homes, businesses, and industrial applications, featuring modular expandability (from 11 kWh to MWh range), Swiss-made quality with 10-year warranty, and proprietary battery management system (BMS) specifically developed for second-life applications. The AC-coupled variants are designed for easy retrofit installation using CEE16 plugs.

Differentiator

Problem solved

Functional benefit

Products and services

• modual Home & Business
• Series Lite 2
• Series Basic
• Industrial-scale second-life BESS installations

Quantifiable outcome

• Self-consumption rate increases from ~30% to over 70% of solar production with battery storage
• +4 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Primeo EnergiecoreStrategic or Co-development Partner · 1 February 2026Primeo Energie serves as the pool operator for Modual's large-scale second-life battery installation (500 kWh, 345 kW) in the Swiss balancing energy market. Primeo handles the administrative overhead and remote control of the storage asset on the last mile, enabling participation in the qualified balancing energy market (Swissgrid) that would otherwise require direct registration.
• Krannich SolarcoreChannel Partner/ Reseller/ DistributorKrannich Solar is listed as an official distribution partner on modual.ch. Customers can purchase modual products directly through the Krannich Solar online shop (shop.krannich-solar.com/de-ch) for the Swiss market.
• Otto FischercoreChannel Partner/ Reseller/ DistributorOtto Fischer is listed as an official distribution partner on modual.ch. Otto Fischer is a Swiss electrical wholesale distributor.
• Swiss Academy of Engineering Sciences (SATW)minorStrategic or Co-development PartnerModual engaged in an exchange with SATW (Swiss Academy of Engineering Sciences) as part of its network strengthening and innovation collaboration efforts in 2025.
• SwissgridcoreStrategic or Co-development PartnerSwissgrid is the Swiss transmission system operator for the national electricity grid. Modual's large-scale second-life BESS (345 kW) is registered and operating in the qualified balancing energy market under Swissgrid's regulatory framework, providing positive and negative balancing energy to stabilize the Swiss power grid.

Scale indicators4 records

Expansion highlights6 records

Direct peers

• B2U Storage Solutions: US-based developer of grid-scale energy storage using repurposed EV batteries; directly comparable second-life BESS focus, including participation in CAISO and wholesale market applications analogous to Modual's Swissgrid play.
• Connected Energy: UK-based second-life EV battery storage specialist building both commercial and utility-scale systems with proprietary monitoring; directly comparable to Modual in feedstock model, MWh-scale system architecture, and ancillary services.
• Relectrify: Australia-based battery technology company focused on second-life battery management, cell-level monitoring and repurposing — closely comparable in BMS-for-second-life specialisation, one of Modual's core differentiators.

Broad incumbents

• Stiesdal/Energy Storage: Danish storage pioneer developing utility-scale BESS and PtX technologies; broader portfolio player with overlapping stationary storage capability relevant to Modual's industrial/MWh roadmap.
• Northvolt: European battery manufacturer and recycler; comparable via vertical integration ambition and a stated focus on circular battery value chains, though Northvolt also produces new cells — overlapping only at the recycling/second-life boundary.
• Sonnen (Enphase): Established residential battery storage incumbent, now part of Enphase; competes with Modual's Home & Business product in the Swiss and DACH residential solar-storage market, though it uses new LFP cells rather than second-life modules.
• Sunlight Group: Industrial lead-acid and lithium battery manufacturer with energy storage product lines; relevant comparable for Modual's industrial/MWh traction given focus on commercial and intralogistics-grade storage systems.

Regional players

• Bataillard: Swiss energy engineering firm active in PV/solar and storage installations; serves a closely overlapping residential and commercial Swiss customer base but is primarily a system integrator rather than a second-life hardware manufacturer.
• BESA (Battery Energy Storage Solutions AG): Swiss-Domiciled commercial/industrial battery storage system integrator; competes with Modual in Switzerland on commercial-scale BESS and could also bid into the same balancing-energy market.

Emerging players

• Voltfang: German second-life battery storage start-up building commercial and industrial systems from retired EV packs; overlapping emerging player in the European second-life space with similar go-to-market segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/modual.ch
• LinkedInlinkedin.com/company/modual-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Modual