Transition to S-100-based ECDIS Made Simple: 2025 Update

🧪 What is it and Keep it Simple...

Think of S-100 ECDIS like turning your chart display into a smartphone. The basic map is still there, but now you can add official “apps” that drop live layers on top, so the picture gets clearer and smarter without changing how you steer.

• The base: S-101 ENCs become the main chart layer, replacing S-57.
• Plug-in layers: S-102 high-res depth, S-104 water level, S-111 surface currents, S-124 nav warnings, S-129 under-keel clearance, and more.
• How it runs today: “Dual fuel” ECDIS can show S-57 and S-100 products side by side during the transition.
• Why owners care: clearer situational awareness, cleaner route checks, and a standards path that fits upcoming IMO performance rules.
• Easy next step: ask for an S-100-capable, dual-fuel ECDIS and confirm the first S-100 layers you want supported.

⚗️ 2025 S-100 ECDIS Rundown

• Status today: The global S-100 standard is published and in force. Hydrographic offices are issuing early S-100 data sets in selected areas, with broader rollout starting 2026.
• When you can use it: S-100 ECDIS can be used from 1 January 2026. From 1 January 2029 all new ECDIS installations must meet the S-100 performance standards.
• How ships run it now: “Dual-fuel” operation lets bridge teams view S-57 charts and S-100 products side by side during the transition.
• What layers are real: S-101 ENCs are the new base. S-102 high-resolution bathymetry, S-124 navigational warnings, S-111 surface currents and others are available or entering service in growing coverage.
• What it changes on watch: Clearer layers and smarter checks for route, tides, currents and under-keel clearance, with less screen clutter when presets are used.
• Owner action now: Specify S-100-capable, dual-fuel ECDIS. Check S-100 coverage on your main routes, plan type-specific training, and set simple bridge presets for harbor, coastal and ocean modes.

🧮 S-100 ECDIS — ROI, Payback & NPV

Estimate the business case for upgrading to S-100-capable, dual-fuel ECDIS (S-57 + S-100). Use a preset or edit inputs.