Ship Resistance and Propulsion
A tool to estimate ship resistance using various empirical methods (Holtrop–Mennen, van Oortmerssen, etc.) from hull offsets or principal particulars, then select an optimum propeller using various optimization methods and determine the required power.
Diesel v/s solar electric Economics
Compare the lifetime economics of diesel v/s solar-electric boats. Pick a vessel and the model loads its speed-power curve, duty cycle and solar plant, then sizes the battery and totals capital, fuel, emissions and 20-year cost — showing when electric overtakes diesel. Money in lakh INR. Oceans, Electrified.
Barge Economics
The NW-5 Inland Barge Economic Calculator models a 2000-tonne cargo barge on the 320 km Talcher–Paradip/Dhamra route over 28 years. It compares diesel vs battery-swap electric propulsion across TCO, NPV, payback, sensitivity, and emissions — with every assumption visible and key inputs adjustable.
Solar + Grid CO2 Electrification
Does electrifying a ferry actually cut emissions? It depends on what charges the battery. This calculator takes your grid’s carbon intensity and solar share, then shows the resulting CO₂ reduction ratio — and the break-even point where electrification truly starts paying off.
Sandith Thandasherry 