What SUNBEAMsystem OÜ does

SUNBEAMsystem OÜ is an Estonian private limited company that designs, manufactures, and distributes marine and mobile-grade solar panels, LiFePO4 batteries, MPPT solar charge controllers, and a multi-device monitoring mobile application. The company sells under sub-brands including the TOUGH solar panel series (with a record-claimed 25.1% efficient Tough G8 Performance), the SMART LITHIUM battery range built around its proprietary Stainless Power Matrix architecture (mechanically fastened cylindrical cells in stainless steel frames without welds), and the MOONRAY MPPT charge controller family. Its core customer base spans sailing and yacht owners, RV/motorhome users, electric boat and light electric vehicle builders, and remote-expedition deployments.

The company monetizes through direct-to-consumer e-commerce (shop.sunbeamsystem.com), a global authorized retailer and distributor network, OEM partnerships with marine boat builders (e.g., Optimus Yacht Builders, Fountaine-Pajot hybrid-electric integrations), and ecosystem integration with marine electronics platforms — most notably Raymarine LightHouse chartplotters, where the SUNBEAMsystem Multi Connect app is approved and distributed across 12 regional storefronts. Pricing is not publicly listed; customers are routed through retailers or quote-based direct sales.

The business operates as a vertically specialized niche manufacturer with a 1–10 employee headcount and over a decade of domain focus, having built its brand largely through content marketing around real-world expedition and research use cases (Atlantic rowing records, transpacific wing-foiling, Arctic moon-analogue missions, ocean plastic cleanup systems). No external venture or growth equity funding, M&A activity, or disclosed revenue figures appear in the source material.

Name

SUNBEAMsystem OÜ

Legal name

SUNBEAMsystem OÜ

Website

https://sunbeamsystem.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

SUNBEAMsystem OÜ designs and sells marine and mobile-grade solar panels, LiFePO4 batteries, MPPT charge controllers, and a multi-device monitoring app to yacht owners, RV users, boat builders, and expedition operators via direct e-commerce and a global retailer network.

Ownership category

akta.pro rank

Product category

Marine Solar Power Systems

NAICS

Solar Electric Power Generation (221114), Battery Manufacturing (33591), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ)

akta.pro secondary industries

Solar Inverters, Power Optimizers & MLPE Manufacturing (EUAMAHAB), PV Balance of System (BOS) & Electrical Infrastructure (Inverters, Transformers, Cabling, Substations) (EUACAGAC)

Keywords

• Marine solar panels
• Lithium marine batteries
• MPPT charge controllers
• Off-grid power systems
• Mobile solar solutions

Headquarters

HQ city

Loo

HQ country

Estonia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Solar Panels: SUNBEAMsystem manufactures and sells a broad range of high-performance marine solar panels including Tough G8, Tough G8 Performance, Tough G8 Black, Tough IQ, Carbon IQ, Fold Series, Maxa ETFE, Nordic Series, and Tough Black Hole gap filler models. Panels are sold directly through the company's e-commerce shop and through a global network of retailers and distributors.
2. Smart Lithium Batteries: The company sells LiFePO4 batteries across three product lines: Plug & Play (cylindrical cells, drop-in lead-acid replacement), Prismatic (more economical prismatics cells), and Drive (for electric propulsion applications up to 48V and 10kWh). Additional products include Smart Power Station.
3. MPPT Charge Controllers: Sale of MoonRay MPPT series controllers, MoonRay Slim, and Mini-MPPT charge controllers that manage solar panel output and optimize battery charging.
4. Accessories and Connectivity: Sale of accessories including Sun-Click waterproof connectors, extension cables (3m, 6m, 10m), T-connectors, and the Multi Connect App which connects all SUNBEAMsystem devices. Revenue from the Raymarine app integration also supports ecosystem lock-in.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

SUNBEAMsystem designs, manufactures, and sells high-performance marine-grade solar panels (Tough series, Carbon IQ, Fold, Maxa ETFE, Nordic), smart LiFePO4 lithium batteries (Plug & Play, Drive, Race, Prismatic, Smart Power Station), MPPT solar charge controllers (MoonRay series), and the Multi Connect monitoring app — packaged as an integrated off-grid power ecosystem for boats, yachts, RVs, and remote applications.

Product overview

SUNBEAMsystem OÜ offers a unified portfolio of marine solar panels, smart lithium batteries, and MPPT charge controllers designed to work together as an integrated off-grid power system for boats, yachts, and recreational vehicles. The solar panel lineup spans nine distinct series (Tough IQ, Tough G8 Performance, Tough G8 Performance Black, Tough G8, Tough G8 Black, Carbon IQ, Fold, Maxa ETFE, Nordic, and Black Hole Gap Filler) ranging from premium high-efficiency panels for permanent marine installation to portable foldable models for temporary use. The Smart Lithium battery range includes five sub-series (Plug & Play, Drive, Race, Prismatic, and Smart Power Station) using cylindrical and prismatic cells, all managed via the proprietary Stainless Power Matrix architecture. These are complemented by three MPPT charge controllers (MoonRay Series, MoonRay Slim, and Mini-MPPT) and the Multi Connect mobile/tablet app, enabling centralized monitoring and control of all onboard devices. The products share a common focus on harsh marine environments, with durability, efficiency, and plug-and-play installation as unifying themes.

Differentiator

Problem solved

Functional benefit

Brands

• SMART LITHIUM: Smart lithium battery product line including Plug & Play, Drive, Race, and Prismatic series for marine and mobile energy storage applications.
• TOUGH Series
• MOONRAY
• Multi Connect
• Smart Power Station

Products and services

• Tough G8 Series Core marine solar panel model with 22.6% efficiency using Maxeon/SunPower cells, flush installation capability, shadow optimization, and 5-year warranty. Designed for permanent marine installation on boats and yachts.
• Tough G8 Performance Series
• Tough G8 Performance Black Series
• Tough G8 Black Series
• Tough IQ Series
• Carbon IQ Series
• Fold Series
• Maxa ETFE Series
• Nordic Series
• Tough Black Hole Gap Filler
• Smart Lithium Plug & Play
• Smart Lithium Drive
• Smart Lithium Race
• Smart Lithium Prismatic Series
• Smart Power Station
• MoonRay Series MPPT Charge Controllers
• MoonRay Slim
• Mini-MPPT
• Multi Connect App

Quantifiable outcome

• 25.1% panel efficiency (Tough G8 Performance) — record-holding performance
• +5 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature6 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• The Ocean CleanupcoreStrategic or Co-development PartnerSUNBEAMsystem is a proud supplier of Tough 18W Flush solar panels for The Ocean Cleanup's prototype modular ocean plastic cleanup systems. The solar panels charge batteries powering GPS trackers and multiple sensors on each cleanup subsystem (up to 50 per location). Panels were selected for their marine-grade durability, saltwater resistance, UV resistance, and flush cabling for invisible internal installation directly on the floaters in continuous seawater contact.
• Optimus Yacht BuilderscoreOEM/ Whitelabel/ Licensing PartnerBelgian boat builder Optimus Yacht Builders is equipping its Optimus 45 zero-emission catamaran with 30 Tough 100 Flush solar panels covering the entire deck to supply the entire electrical system powered by Oceanvolt electric motors. The anti-slip Tough panels serve as functional deck surfaces in addition to power generation.
• RaymarinecoreTechnology or IntegrationSUNBEAMsystem has developed a dedicated app for Raymarine chartplotters (Axiom, Axiom+, Axiom Pro, Axiom XL, Axiom 2 Pro, Axiom 2 XL). The app is approved and digitally signed by Raymarine, listed on Raymarine's Apps & Integrations pages in 12 regional versions (US, UK, Australia, Denmark, Finland, Italy, Sweden, Spain, Germany, Norway, France, Netherlands), and enables monitoring of SUNBEAMsystem devices directly from Raymarine LightHouse displays.
• KM3NeTminorStrategic or Co-development PartnerSUNBEAMsystem powers the Cosmic Ray Detector (CRD), a small vessel that measures high-energy particles on the Mediterranean Sea surface above the KM3NeT deep-sea neutrino detector array. The CRD provides vital calibration data for the large detector being built on the Mediterranean seafloor. More information available at km3net.org.
• Chris Bertish Foundation / Conservation International / Sea ShepherdminorStrategic or Co-development PartnerChris Bertish's Transpacific Wing Project, sponsored by SUNBEAMsystem, raised funds for ocean conservation through partnerships with Conservation International and Sea Shepherd, facilitated through the Chris Bertish Foundation. The project aimed to raise awareness around climate change and ocean conservation.
• SAGA Space ArchitectsminorStrategic or Co-development PartnerSAGA Space Architects (Sebastian Aristotelis and Karl-Johan Sørensen) conducted the Lunark Moon Analogue mission in Arctic Greenland using a custom habitat equipped with SUNBEAMsystem solar panels, SMART LITHIUM batteries, and MoonRay MPPT controllers. The habitat sustained comfortable living through 60 days of isolation at -30°C and hurricane-force winds.
• Yachtcenter LangweerminorChannel Partner/ Reseller/ DistributorDutch electric houseboat rental company in Friesland, Netherlands. Their entire rental fleet of electric houseboats is outfitted with SUNBEAMsystem Tough solar panels (1–2kW per boat) that charge batteries and serve as walkable sun decks. The silent electric boats operate at 6 km/h and achieve 3 hours of full-battery runtime.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Solara GmbH: German marine and motorhome solar panel manufacturer with comparable high-efficiency cell technology and walkable panel designs. Competes in the same European marine/RV distribution channels.
• Solbian Energie Alternative: Italian manufacturer of flexible, high-efficiency marine solar panels using SunPower/Maxeon cells. Closest direct peer in marine-grade flexible PV panels with overlapping customer base in yachting and competitive sailing applications.
• Battle Born Batteries: US LiFePO4 battery manufacturer with strong marine and RV presence, drop-in replacement positioning, and integrated ecosystem approach. Directly comparable in lithium marine battery go-to-market.
• SunWare Solartechnik: German manufacturer of marine and RV solar panels with multi-decade focus on saltwater-resistant, walkable, flexible PV. Direct competitor in European marine solar panel market with similar product positioning around durability.
• Victron Energy: Dutch manufacturer of off-grid power systems including inverters, charge controllers (MPPT), lithium batteries, and complete marine/vehicle solar+battery ecosystems. Directly comparable as a one-stop-shop supplier of marine-grade solar components, batteries, and monitoring for vessels and RVs.
• RELiON Battery: US-based LiFePO4 battery manufacturer serving marine, RV, and off-grid markets with drop-in replacements for lead-acid. Comparable battery product line targeting similar marine and mobile applications.
• Mastervolt: Marine and mobile power electronics manufacturer (part of Power Products) producing lithium batteries, charge controllers, and inverters for yachts and electric propulsion. Directly comparable product portfolio targeting the same marine electrification customer base.

Emerging players

• Oceanvolt: Dutch marine electric propulsion manufacturer whose vessels (Optimus 45, Fountaine-Pajot) integrate SUNBEAMsystem solar panels. Adjacent peer in marine electrification ecosystem with overlapping customer projects.
• Genasun: US-based manufacturer of small-form-factor MPPT charge controllers for mobile, marine, and expedition applications. Comparable niche competitor in MPPT controllers referenced in the SUNBEAMsystem customer case (Alve Henricson Suntrailer uses a Genasun GV-Boost).

Broad incumbents

• Garmin Marine: Marine electronics incumbent producing chartplotters, instrumentation, and integrated monitoring systems that compete with Raymarine. As a broader ecosystem player, Garmin could expand into integrated solar/battery monitoring — a long-term competitive threat to the SUNBEAMsystem/Raymarine integration strategy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/watch?v=cx3k0oIILgY
• Facebookfacebook.com/SUNBEAMsystem-CRD-1684077041850354
• LinkedInlinkedin.com/company/sunbeamsystem.se

Compliance1 record

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 SUNBEAMsystem OÜ