Reactors Installed on Nuclear-Powered Icebreaker Leningrad

Two RITM-200 reactors have been installed on the nuclear-powered icebreaker Leningrad, which is currently under construction at the Baltic Shipyard. Each reactor weighs more than 147 tonnes, stands 7.3 meters tall, and has a diameter of 3.3 meters. Specialist lifting equipment was used for their placement. The Leningrad's keel was laid in January 2024, and work on the hull and equipment installation is ongoing.

The RITM-200 reactors are pressurized water reactors featuring steam generators integrated into the core reactor vessel. This design choice, according to USC Baltic Shipyard, reduces the risk of coolant leaks, decreases the reactor's size and weight, and simplifies installation and dismantling processes. These reactors have a 40-year service life, with refueling required every seven years. They provide a thermal capacity of 175 MW, converting to 30 MW at the propellers, and are engineered to withstand 45-degree rolls.

Afrikantov OKBM, part of Rosatom's machine-building division, is responsible for the design, supply, and manufacturing of the reactor internals for both RITM-200 and RITM-400 reactor units. Reactor vessel fabrication and test assembly are carried out at ZiO-Podolsk. To date, 15 RITM-200 reactors have been completed, with an additional 13 currently under construction.

The Leningrad is one of the Project 22220 series of nuclear-powered icebreakers, which are 173 meters long, 34 meters wide, and have a height of 57 meters from the waterline to the mainmast. These vessels are designed to break through ice up to three meters thick and achieve a speed of 22 knots in clear water. Other operational Project 22220 icebreakers include the Arktika, Sibir, Ural, and Yakutia, with the Chukotka undergoing mooring tests. Another vessel, the Stalingrad, is also under construction at the Baltic Shipyard.

In addition to the Project 22220 series, a larger nuclear-powered icebreaker, the Rossiya, is under construction. This vessel will be the first of the proposed Project 10510 series and will incorporate two RITM-400 reactors, providing 120 MW of propeller power. The Rossiya is designed to penetrate ice up to 4.3 meters thick and clear a channel up to 50 meters wide, with a target service date of 2030. Nuclear-powered icebreakers are a key component of Russia's strategy to develop the Northern Sea Route, facilitating faster transport between Europe and Asia.

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FloMobility is India's largest construction robotics service provider. The company specializes in developing and deploying autonomous robots for material movement at large-scale construction sites.

Core Mission and Business Model
The company's mission is to enable contractors and developers to build faster, reduce labor dependency, and significantly enhance productivity. FloMobility operates on a subscription-based "Robotics-as-a-Service" model: autonomous robots are deployed on-site with zero capital expenditure (CapEx) for the client and require no changes to the existing site infrastructure.

Technology and Equipment
FloMobility prides itself on building its technology end-to-end and entirely in-house—giving them full control over hardware, software, and the autonomy stack:

Hardware: Autonomous and semi-autonomous electric carts featuring 4-wheel drive (4WD), IP65 dust and water sealing, and payload capacities ranging from 500 kg to 1 ton.
Perception & Autonomy: The robots navigate their surroundings using 32-beam LiDARs (offering 360° coverage and a 200-meter range) and GPS. On-board Edge AI ensures a reaction time of less than 100 milliseconds.
Fleet Platform: A proprietary cloud platform allows clients to control their entire fleet across multiple sites via a single dashboard, featuring Over-The-Air (OTA) updates and 99.9% guaranteed uptime.

Key Metrics and Achievements

Deployed over 50 robots that have expedited work across 32 major projects.
The fleet has traveled a total distance of over 50,000 km and successfully moved 2.5 Lakh (250,000) tonnes of construction material.
The robots' ability to operate 24/7 has contributed to a 30% reduction in on-site accidents.

Clients and Investors
FloMobility's technology is trusted by over 15 major companies, including Indian and global industry leaders such as L&T, Godrej, Embassy, Sobha, Kalpataru, and Nissan. The company's growth is fueled by prominent Indian venture funds, accelerators, and research institutions, including Mela Ventures, Arali Ventures, Blume Founders Fund, and IISc-ArtPark.