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Case Study: NB Chelonian
Inland Narrowboat

NB Chelonian Case Study.

A 60ft semi-trad narrowboat repowered with a Beta 43 Hybrid drive in 2007. Operating gas-free for over 15 years and upgraded to Lithium battery storage in 2021.

Vessel & Driveline Specifications

NB Chelonian is equipped with the Hybrid Marine Standard Inland Waterways package. Designed for complete gas-free living, the system powers an electric induction hob, oven, domestic washer-dryer, and household appliances.

Engine Unit Beta 43 Diesel Engine
Hybrid Package Single Electric Motor
Battery System Upgraded to Lithium (2021)
AC Power Dual Victron Multiplus 48/3000
Monitoring Victron Color Control GX
Electric Autonomy 3–4 Hours Pure EV Drive

Long-Term Owner Experience & Analysis

Meeting Key Requirements:
“My requirements for a hybrid drive were to provide the same range as diesel, allow silent electric propulsion for hours, permit a 50/50 diesel/electric duty cycle without long recovery times, and use propulsion batteries for domestic power. The Hybrid Marine parallel system fulfills all of these without compromise.”

Gas-Free Onboard Living:
“Using a standard 48V battery plant allowed us to fit Victron Multiplus units providing 10kW+ AC power. Replacing gas cooking with electric induction hobs, an electric oven, kettle, toaster, and washer-dryer has vastly improved onboard safety and convenience.”

Fuel Economy & Environmental Impact:
“Running on electric propulsion for ~50% of cruising time virtually eliminates running the diesel engine solely for battery charging, cutting our fuel consumption by more than half compared to an equivalent conventional narrowboat.”

Silent Navigation Benefits:
“Cruising on electric drive opens up a new experience—you hear birds singing, and wildlife like herons and kingfishers can be approached much closer. It also dramatically improves crew safety and communication around locks without diesel engine noise.”

— Dave McInerney, Owner of NB Chelonian

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