Engineering a sustainable tomorrow
YESEN Technology Private Limited, formed in 2019, is an engineering and technology company focused on developing, integrating and delivering sustainable products.
Technology by Nature
0+
Years of clean-tech engineering
$0M+
Delivered in partnered projects
0 kWp
Solar hybrid microgrids for 458 towers
0+
Countries served worldwide
Who we are
01 — Belief
We support green technology initiatives and believe that innovation becomes meaningful only when it solves real human problems.
- Innovation measured by human impact
- Technology that communities can own
- Long-term partnerships, not one-off installs
02 — Focus
Our focus is on practical engineering solutions, especially in the marine sector, where cleaner alternatives are urgently needed.
- Electric and hybrid marine propulsion
- Design, fabrication and commissioning
- Field-proven across South Asia
2019
Year founded
YESEN Technology was founded to develop, integrate, and deliver sustainable marine products. We support green technology initiatives with practical engineering solutions — from vessel design and fabrication to testing, launching, and commissioning.
Vessel designFabricationTestingLaunchingCommissioning
01
Mission
To develop green technologies that make economic sense, so they can be used by people anywhere — from smart cities to the remotest parts of the earth.
- Green tech that pays for itself
- Deployable in the remotest terrain
- Built for smart cities and villages alike
02
Vision
To design, develop and patent greener products, intelligently adapting global technologies into solutions communities can maintain with local resources and local talent.
- Patented, in-house engineering
- Global technology, local adaptation
- Serviceable with local talent
03
Values
A more equal world where everyone has access to affordable, reliable and sustainable energy — reducing economic disparity while tackling climate change.
- Affordable, reliable, sustainable
- Energy access as an equaliser
- Climate action with real economics
What we do
Products, solutions and projects built for a warming world
01
Products
In our fight against climate change we have joined forces with pioneering world leaders in energy technology like Phocos and V-Sun, trusted for high performance and reliable trouble-free operation. Alongside them we build our own indigenous range — T-Secure, P-Secure and H-Secure — for energy security, health security and waste management.
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02
Solutions
The earth is warming at an alarming rate, with serious health and ecological consequences. The challenges posed by climate change often demand unusual answers. With unlimited flexibility and scalable implementation, our solutions can stand alone or integrate seamlessly with any existing system.
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03
Projects
From Asia's largest solar boat to the world's largest rural solar electrification park and everything in between, we have been frontrunners of sustainable energy, conferred with several awards for innovation. Our most gratifying moments come from partnering clients with alternatives to a better life.
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Why YESEN
Proven on the water,not just on paper.
Every claim below is something we've already built, certified, or shipped — not a roadmap.
0founded
Live on the water since 2021, not a concept render
Founded in 2019, YESEN put a solar-electric ferry into real passenger service on Vembanad Lake, Kerala in 2021 — the CIAL Vembanad project. A live deployment in real backwater conditions, not a prototype.
IRSapproved
Certified marine-safe, not just marketed that way
The B-KOOL battery pack is IRS-approved — Tier-1 LFP cells, integrated BMS, liquid cooling, and real-time WiFi/Bluetooth monitoring built in.
0vessel types
Retrofit what's already afloat, or build new
E-MARINE kits electrify houseboats, shikaras, ferries, RORO, barges and more — while our team also handles new-build vessels end to end: design, fabrication, testing, launch, commissioning.
0installs
Engineering muscle that extends beyond boats
200+ MNRE-registered solar installations across Kerala, plus completed commercial projects in Guam and Abu Dhabi — proof our execution holds up on land too.
3-yrROI
The economics hold up, not just the ethics
Zero emissions, zero vibration, no fuel — and roughly 10x more reliable than IC engines, with a 3-year ROI against conventional propulsion once fuel and maintenance savings are counted.
Who we build with
Backed by shipyards, researchers, and OEMs — not built alone
From fabrication to propulsion research, every claim we make is co-signed by a partner who specializes in it.
Shipyard Partners
Fabrication & vessel construction
SamudraMatha Marines
Providing fabrication, vessel construction, and retrofit expertise to deliver E-MARINE electrification solutions at scale.
R&D Partners
Research & propulsion innovation
CDACCMLRE
Collaborating on advanced research, technology development, and innovation to accelerate marine decarbonization and sustainable propulsion systems.
Leading OEM Partners
Propulsion, storage & marine technology
E-MARINE collaborates with world-class OEM partners across EV propulsion, energy storage, and marine technology — ensuring best-in-class performance, reliability, and innovation across every project.
Hypercraft
EnArkaby Ohmium
Elcosince 1893
ECETL
Polarium
Marine & EV Technology Partners
Hypercraft
EnArkaby Ohmium
Elcosince 1893
ECETL
Polarium
Marine & EV Technology Partners
The Technology
Engineered cell to cloud — not just charged and shipped.
Every battery we ship is certified. Every vessel we fit is watched, live, from anywhere.
B-KOOL Battery Technology
Certified from the cell up
B-KOOL supports CAN & Modbus data protocols for seamless integration with vessel management systems, with real-time WiFi and Bluetooth monitoring built in.
IRS Approved LFP Marine BatteryCertified marine-safe, not just marketed that way
Certified SafeTier-1 LFP Cells + Integrated BMSSafety micro-controller built into every pack
High ReliabilityLiquid-Cooled Thermal ManagementAdvanced cooling for safety and longevity
Longer LifePre-Charge Circuit for Cell BalancingWiFi & Bluetooth monitoring, always on
Smart ControlLive cell status
B-KOOL
01
Real-Time Monitoring & Control
Live vessel data, battery status, motor performance, and system health, at your fingertips.
02
Operational Cost & Data Analytics
Track energy usage, predict maintenance needs, and optimize routes with actionable insights.
03
Access From Everywhere
Web & mobile apps with data mining and predictive insights for proactive fleet management.
Indigenous ranges and world-leading technology partners
In-houseYesen Technologies
Yesen TechnologiesIn-house
- P-SECURE
- T-SECURE
- H-SECURE
- B-LIPH
Solar modulesV-Sun
V-SunSolar modules
- SOLAR MODULES
Off-grid powerPhocos
PhocosOff-grid power
- SOLAR CHARGE CONTROLLERS
- INVERTERS
- DC REFRIGERATORS
- FREEZERS
E-MarineElco
ElcoE-Marine
- ELECTRIC MARINE PROPULSION MOTORS
E-Marine
Decarbonizing the marine sector
Pioneering marine solutions for a sustainable world — certified battery systems, intelligent controls and safety layers engineered for life on the water.
- B-Guard
- B-Kool
- M-Control
- IEC 62619
- IEC 62620
- TRS
- Yesen Technologies
What can we retrofit
Electrification kits for every vessel
Pre-engineered retrofit kits designed for broad applicability across vessel types — fast, affordable and over 10x more dependable than conventional IC engines.
Proof of Work
From pilot to fleet — in our own photos.
Every image below is from an actual site — not stock photography.
CLIENT VOICES
Trusted by teams building by nature
What our partners say after working with Yesen Technologies
Let's build something sustainable together
Tell us about your site, your load profile or your sustainability target — our engineers will come back with an approach.