Biofuel (B30→B100) Readiness Made Simple: 2025 Update

🧪 What is it and Keep it Simple — Biofuel (B30→B100) Readiness

Biofuel at sea is usually FAME biodiesel or HVO renewable diesel. Blends like B30 to B100 can work on many ships with a few checks and some basic housekeeping. The climate benefit is counted from source to use, not only at the exhaust.

• Know the fuel: Ask the supplier to state the blend and key properties. Use current ISO 8217 specs. Check cold filter plugging point if you sail in cold water.
• Check with the maker: Most engine makers allow FAME and HVO on many models. HVO behaves most like MGO. Get the written guidance for your engine type.
• Prepare the system: Clean the tank before first use. Fit good filters. Plan for water draining and regular sampling. Keep a small stock turnover so fuel stays fresh.
• Watch performance: FAME has lower energy per tonne than MGO. Do not expect the blend % to equal fuel savings. Track SFOC, filter condition, and any alarms.
• Cold operations: In cold trades use winter grade fuel or blend with MGO or HVO. Keep lines and filters protected from low temperatures.
• Paperwork: Keep sustainability certificates and delivery notes. Record the blend used and the voyage. This helps with rules like FuelEU Maritime.
• How to start: Trial B20 or B30 for 30 to 60 days on one ship. If stable, expand to more ships or higher blends.