Accusystems TransWatt
Accusysteme TransWatt GmbH is a German Victron Energy specialist that designs, integrates, and installs battery-based power supply systems—including ESS, backup power, and off-grid solutions—for motorhomes, marine, agricultural, residential, and special-purpose vehicle customers across Germany.
- Company typePrivate
- Founded-
- HeadquartersBad Sassendorf, Germany
- Headcount11–50
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Accusystems TransWatt does
Accusysteme TransWatt GmbH is a privately held German specialist integrator and reseller of battery-based power supply systems headquartered in Bad Sassendorf, North Rhine-Westphalia. The company operates as the official Victron Energy Repair Center for Germany and an authorized Victron dealer, distributing and integrating Victron's MultiPlus-II and Quattro inverter/chargers, SmartSolar MPPT charge controllers, Cerbo GX communication hubs, and BMV battery monitors. It complements the Victron stack with third-party components including Fischer Panda generators, Pytes and Voltsmile lithium battery banks, and Fronius solar inverters, assembled into Energy Storage Systems (ESS), backup power solutions, peak-shaving configurations, and zero-feed-in installations.
TransWatt sells across both B2C and B2B channels: a public website with price lists and battery capacity calculators targets end customers; a B2B eOrder portal (eorder.transwatt.de) serves registered trade buyers; and an in-house workshop ("Fachwerkstatt") delivers professional installation and project planning for motorhomes, expedition vehicles, service and special-purpose vehicles, marine vessels, agricultural PV sites, and stationary residential or commercial projects. The company emphasizes certified Victron expertise, custom system design, and post-sale repair services rather than price-based competition.
Verticals served include emergency power backup for residential and commercial properties, recreational vehicles (RV/motorhome), marine blue-water sailing, special-purpose emergency vehicles (fire, ambulance, police), agricultural PV self-consumption, residential solar storage, and bespoke conservation projects such as autonomous power for meadow-bird habitat irrigation. The company maintains a Google rating of 4.7/5 from 123 reviews and participates in CARAVAN SALON Düsseldorf 2026 as a key demand-generation event. No parent company, funding rounds, or external investors are disclosed.
Accusystems TransWatt firmographics
Firmographics- Name
- Accusystems TransWatt
- Legal name
- Accusysteme TransWatt GmbH
- Website
- https://transwatt.de
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Accusysteme TransWatt GmbH is a German Victron Energy specialist that designs, integrates, and installs battery-based power supply systems—including ESS, backup power, and off-grid solutions—for motorhomes, marine, agricultural, residential, and special-purpose vehicle customers across Germany.
- Ownership category
- akta.pro rank
Accusystems TransWatt industry classification
Industry- Product category
- Mobile Battery Power Supply Systems
- NAICS
- Battery Manufacturing (33591)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)
- akta.pro secondary industries
- Energy Storage Software & Controls (EMS, monitoring, optimization, cybersecurity) (IMAGAHAJ), Aftermarket Battery, Charging & Power Accessories Manufacturing (12V Batteries/Jump Starters/Chargers/Inverters) (IMACANAL)
Keywords
Where Accusystems TransWatt is headquartered
LocationHeadquarters
- HQ city
- Bad Sassendorf
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Accusystems TransWatt business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Product Sales: Sale of Victron Energy products (inverters, chargers, MPPT controllers), Fischer Panda generators, Pytes battery banks, and Voltsmile lithium storage systems. One-time hardware sales with associated installation services.
- Workshop and Installation Services: Professional installation and integration of complete power supply systems for motorhomes, expedition vehicles, service vehicles, and special vehicles. Includes planning and project-specific customization.
- Repair and Maintenance Services: As official Victron Repair Center for Germany, provides repair services for Victron MultiPlus, Quattro, and MPPT devices.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Public retail pricing for Victron and Transwatt products |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Accusystems TransWatt product offering
Product offeringCore offering
Accusysteme TransWatt GmbH sells battery-based power supply systems integrating Victron Energy inverter/chargers, MPPT charge controllers, Cerbo GX communication hubs, and lithium battery banks (Pytes, Voltsmile) configured into Energy Storage Systems (ESS), backup power (Notstrom) solutions, peak shaving systems, home solar storage, marine, agricultural-PV, and zero feed-in installations. The company also operates a professional workshop (Fachwerkstatt) for installation into motorhomes, expedition vehicles, and special-purpose vehicles, and serves as the official Victron Repair Center for Germany.
Product overview
Accusysteme TransWatt is a specialized provider of battery-based power supply systems offering integrated solutions combining Victron Energy components (MultiPlus and Quattro inverter/chargers, SmartSolar MPPT charge controllers, Cerbo GX monitoring hubs, BMV battery monitors) with various battery storage options (Pytes, Voltsmile lithium). Their portfolio centers on ESS (Energy Storage Systems) for intelligent energy management, supported by services including professional workshop installation for motorhomes and special vehicles, and an official Victron Repair Center for Germany. Core applications include emergency backup power, peak shaving, home solar storage, zero-feed-in systems, agricultural PV, marine, and special-purpose vehicles.
Differentiator
Problem solved
Functional benefit
Products and services
- ESS (Energy Storage Systems) / Energiespeichersysteme Energy Storage System combining inverter, battery storage, and energy management that intelligently controls energy flows, optimizes usage, smooths load peaks, and reduces grid dependency for residential and commercial customers.
- Notstrom-Lösungen (Backup Power Solutions) Battery-based emergency power solutions for residential and commercial properties, including consultation, planning, and implementation services to ensure uninterrupted operation during grid outages.
- Peak Shaving (Lastspitzenkappung) Targeted reduction of short-term power peaks in electricity consumption to prevent peak demand charges and optimize energy costs for commercial and agricultural customers.
- Solarstromspeicher Zuhause (Home Solar Storage) Solar power storage systems for homeowners combining Victron electronics with Voltsmile lithium batteries to maximize solar self-consumption and reduce grid dependency.
- Zero Feed-in Systems (Nulleinspeisung) Systems designed to prevent energy from being fed back into the public grid, maximizing self-consumption of locally generated solar power for residential and commercial sites.
- Agrar-PV (Agricultural Solar-Plus-Storage) Solar-plus-storage solutions for agricultural operations to maximize self-consumption of on-site generated electricity and achieve energy independence on farms.
- Marine Power Supply Solutions Battery-based power systems for marine vessels and blue-water sailing boats requiring reliable, autonomous energy systems for extended voyages at sea.
- Special-Purpose Vehicle Power Systems (Sondereinsatzfahrzeuge) Intelligent onboard power solutions for special-purpose vehicles including fire trucks, ambulances (RTW), and police vehicles using Victron Energy systems for mission-critical applications.
- Fachwerkstatt Installation Service Professional workshop service for installation and integration of complete power supply systems in motorhomes, expedition vehicles, service vehicles, and special vehicles, including planning and project-specific customization.
- Victron Repair Center Service Official Victron Repair Center for Germany providing professional repair services for Victron MultiPlus, Quattro, and MPPT devices.
Quantifiable outcome
- 40 kWp photovoltaic capacity installed in single residential project
- +2 more outcomes
Companies that use Accusystems TransWatt
Customer profileNamed customers5 records
Segments6 records
Ideal customer profiles5 records
Accusystems TransWatt technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Accusystems TransWatt partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Victron EnergycoreTransWatt is the official Victron Repair Center for Germany and authorized Victron dealer. They specialize in Victron products including MultiPlus, Quattro, MPPT controllers, Cerbo GX, and related systems. This partnership provides access to a comprehensive ecosystem of power conversion, battery management, and monitoring products with certified technical support capabilities.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Accusystems TransWatt competitors and assessment
Company assessmentBroad incumbents
- Sonnen (Shell): German-origin residential energy storage pioneer now owned by Shell, with broad European footprint. Indirect competitor in the residential zero-feed-in and self-consumption use cases TransWatt serves.
- SOLARWATT: Established German provider of residential PV, glass-glass solar modules, and battery storage systems. Competes in TransWatt's residential and small commercial solar-plus-storage segment.
- Senec GmbH: Larger German residential battery storage provider with broad product portfolio and dealer network. Competes with TransWatt's home solar storage segment but at greater scale and brand recognition.
- Mastervolt: Dutch manufacturer of marine, mobile, and standalone power conversion systems now part of the broader Brunswick power-systems portfolio. Comparable to TransWatt in marine and mobile inverter/charger integration.
- E3/DC (Hager Group): German residential energy storage incumbent backed by Hager Group, offering integrated PV, storage, and EV charging. Overlaps with TransWatt's residential ESS use case at substantially larger scale.
Direct peers
- Offgridtec: German specialist for off-grid solar and battery system integration serving residential, mobile, and marine applications. Closely comparable to TransWatt in product mix, customer base, and Victron-aligned distribution model.
- Votronic: German producer of mobile electronics and energy management systems for motorhomes, campervans, and special vehicles. Direct overlap with TransWatt's Sondereinsatzfahrzeuge and motorhome installation offerings.
- Büttner Elektronik: German manufacturer of mobile power electronics, chargers, inverters, and battery systems for motorhomes, campervans, and marine use. Direct competitor in TransWatt's primary RV power-supply segment.
- Phaesun GmbH: German integrator specializing in off-grid solar and battery power systems for industrial, marine, and developing-market applications. Overlaps directly with TransWatt's Victron-based mobile and stationary integration business.
Others
- Victron Energy: Netherlands-based manufacturer of inverters, chargers, and energy management systems whose components form the backbone of TransWatt's offering. Technology supplier and ecosystem anchor rather than a direct sales competitor.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Accusystems TransWatt social profiles
Digital presenceAccusystems TransWatt financial estimates
Financial estimateRevenue estimate
Valuation estimate
Accusystems TransWatt leadership team
Management profileNumber of profiles
Accusystems TransWatt funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Accusystems TransWatt M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Accusystems TransWatt
What does Accusystems TransWatt do?
Accusysteme TransWatt GmbH sells battery-based power supply systems integrating Victron Energy inverter/chargers, MPPT charge controllers, Cerbo GX communication hubs, and lithium battery banks (Pytes, Voltsmile) configured into Energy Storage Systems (ESS), backup power (Notstrom) solutions, peak shaving systems, home solar storage, marine, agricultural-PV, and zero feed-in installations. The company also operates a professional workshop (Fachwerkstatt) for installation into motorhomes, expedition vehicles, and special-purpose vehicles, and serves as the official Victron Repair Center for Germany.
Is Accusystems TransWatt a public or private company?
Accusystems TransWatt is a private company. It is classified as unknown and is currently operating.
When was Accusystems TransWatt founded?
Accusystems TransWatt was founded in -1. It employs 11 to 50 people.
Where is Accusystems TransWatt based?
Accusystems TransWatt is headquartered in Bad Sassendorf, Germany, in the Europe region.
How does Accusystems TransWatt make money?
Three revenue lines are on record. Product Sales are the primary driver. The others are workshop and Installation Services and repair and Maintenance Services.
Who are Accusystems TransWatt's main competitors?
Broad incumbents on record are Sonnen (Shell), SOLARWATT, Senec GmbH, Mastervolt and E3/DC (Hager Group). Direct peers are Offgridtec, Votronic, Büttner Elektronik and Phaesun GmbH. Victron Energy is listed as an others.
Does Accusystems TransWatt have an API?
No public API is recorded for Accusystems TransWatt.
What industry is Accusystems TransWatt in?
Accusystems TransWatt's product category is Mobile Battery Power Supply Systems. Its primary akta.pro industry code is IMAGAHAB, Battery Modules & Packs (Industrial/Commercial pack assembly), with a secondary code of IMAGAHAJ, Energy Storage Software & Controls (EMS, monitoring, optimization, cybersecurity). Its NAICS code is 33591 and its SIC code is 3600.