Rimac Energy

What Rimac Energy does

Rimac Energy is a Croatian battery energy storage technology company that designs and manufactures integrated hardware, embedded software, and analytics for commercial & industrial and grid-scale energy storage deployments. The company operates as Rimac Energy d.o.o, headquartered in Zagreb, Croatia, and is a subsidiary of the Rimac Group.

The company's product architecture centers on four integrated offerings. SineTech is a distributed power conversion platform that embeds inverter functionality directly into the module-level battery management system, eliminating the need for a separate central inverter and achieving greater than 99% one-way power conversion efficiency at nominal load. SineStack is the fully integrated C&I battery energy storage system built on SineTech, delivering 868 kWh per 2-hour AC block with 92% round-trip efficiency and a 12,000-cycle lifetime. RE BMS is the standalone battery management system for grid-scale LFP chemistries, providing ±2% per-cell SoC accuracy with active balancing and architecture for 1500 Vdc systems. Battery Intelligence is a hardware-agnostic analytics platform deployed across BMS, edge, and cloud layers, providing advanced state detection, SoC-SoH co-estimation, and AI-driven fleet optimization.

The business model combines hardware sales of integrated BESS systems, power conversion modules, and BMS units with a software/analytics subscription layer. Go-to-market is direct enterprise sales with quote-based pricing targeting C&I and utility-scale customers. Products are designed and manufactured in the EU, providing compliance with US IRA FEOC requirements and EU IAA regulation, which removes geopolitical supply chain risk relative to Chinese-sourced competitors. Pricing is not publicly disclosed; revenue, headcount, and customer concentration data are not available in the source material.

Name

Rimac Energy

Legal name

Rimac Energy d.o.o

Website

https://rimac-energy.com

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

Rimac Energy is a Croatian battery energy storage technology company that designs integrated power conversion hardware, BMS units, and AI-driven analytics for commercial & industrial and grid-scale energy storage projects, operating as a subsidiary of Rimac Group.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591), Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Power Conversion Systems (PCS), Inverters & Transformers for BESS (EUAFAAAE)

akta.pro secondary industries

Power Conversion Systems for Storage & Charging (PCS, bidirectional inverters, DC/DC) (IMAGAHAE), Battery Management Systems (BMS) & Pack Electronics Manufacturing (EUAFABAJ), Battery Management Systems (BMS) & Battery Electronics (IMAGAHAC), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Power Conversion Systems (PCS) for BESS (Bi-directional DC/AC) (EUAFAIAC)

Keywords

• Battery energy storage
• Power conversion systems
• Battery management systems
• Grid-scale storage
• Energy storage analytics

Headquarters

HQ city

Zagreb

HQ country

Croatia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Products (SineTech, SineStack, RE BMS): Sale of integrated power conversion modules, complete battery energy storage systems, and battery management units. Hardware is designed, manufactured, and sold as complete integrated systems for C&I and grid-scale applications.
2. Battery Intelligence Software Platform: Software analytics and intelligence platform deployed across BMS, edge, and cloud layers. Powers advanced algorithms, fleet optimization, and predictive maintenance capabilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Rimac Energy engineers integrated power conversion hardware (SineTech, SineStack), battery management systems (RE BMS), and a hardware-agnostic analytics software platform (Battery Intelligence) for commercial and industrial and grid-scale battery energy storage applications. Its SineTech platform embeds power conversion directly at the battery module BMS, eliminating separate inverters and enabling >99% one-way power conversion efficiency. The company sells complete integrated BESS hardware systems (SineStack) alongside standalone BMS units and a recurring intelligence software layer.

Product overview

Rimac Energy offers a modular battery energy storage portfolio consisting of four integrated products. SineTech is the core power conversion platform that integrates inverters directly into battery module BMS. SineStack is the fully integrated C&I BESS product built on SineTech. RE BMS is the standalone battery management system for grid-scale LFP applications. Battery Intelligence is the analytics and software layer that powers all products with advanced algorithms, edge analytics, and cloud-based AI optimization. The architecture enables turn-key energy storage solutions from module-level to full system deployment.

Differentiator

Problem solved

Functional benefit

Brands

• SineTech: Integrated power conversion and battery management platform that embeds power conversion at module BMS level, turning any DC block into an AC system with no separate inverter.
• SineStack
• RE BMS
• Battery Intelligence

Products and services

• SineTech

Quantifiable outcome

• Reduces levelized cost of storage below any conventional system in its class through 92% round-trip efficiency and 12,000 cycle lifetime
• +4 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature6 records

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Sungrow: Sungrow is a leading global supplier of power conversion systems and integrated BESS for grid and C&I applications. Like Rimac, it competes heavily on PCS efficiency and integrated system architecture, making it a direct technical peer.
• Tesla Energy (Megapack): Tesla's Megapack is the most visible grid-scale LFP battery storage system. It competes directly with Rimac's SineStack in the integrated BESS category, serving utilities, IPPs, and large C&I customers with a similar hardware-plus-platform proposition.
• BYD Energy Storage: BYD's Battery-Box and C&I BESS products are sold globally and integrated from cell through BMS to inverter. Rimac competes against BYD's ability to vertically integrate cells and power electronics at scale.
• Wärtsilä Energy Storage: Wärtsilä GridSolv is a utility-scale BESS with integrated power conversion and energy management software. Direct competitor to Rimac's SineStack in the grid-scale segment, with established utility customers and EPC scale.
• Saft (TotalEnergies): Saft designs and manufactures advanced battery systems and BMS for grid and industrial storage. Its flexible BESS offerings and European manufacturing base overlap with Rimac's RE BMS and SineStack positioning.
• Fluence Energy: Fluence is a global BESS integrator offering both grid-scale and C&I battery storage with associated software (Nispera). It competes head-to-head with Rimac's integrated SineStack and Battery Intelligence offerings on system efficiency, lifetime, and software value-add.

Emerging players

• Stem Inc: Stem is an AI-driven energy storage and software platform focused on C&I and virtual power plants. Its hardware-agnostic AI software focus parallels Rimac's Battery Intelligence platform, although Stem relies on third-party battery hardware.
• Sonnen (Shell): Sonnen is a German residential and small C&I battery storage provider owned by Shell with integrated software. While primarily smaller-scale, its integrated hardware-plus-software approach overlaps with Rimac's C&I strategy.
• Energy Vault: Energy Vault develops non-lithium and hybrid storage systems with proprietary power management software. While its core technology differs, the company competes in the long-duration BESS procurement space targeting similar utility and C&I customers.

Broad incumbents

• EnerSys: EnerSys is a global industrial battery and power electronics company with a sizable presence in motive power, reserve power, and increasingly BESS. It represents a broader incumbent with adjacent BMS and storage capabilities but less specialization in Rimac's core product area.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rimac-energy

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 Rimac Energy