Evaluating hybrid-electric aircraft viability: The Ampaire Eco Caravan cost analysis

This study evaluates the direct operating costs (DOC) and economic feasibility of the Ampaire Eco Caravan, a hybrid-electric retrofit of the Cessna 208B Grand Caravan. A specialized cost methodology was developed, incorporating fuel and energy consumption, acquisition costs, maintenance, and operational expenses. Results show the Eco Caravan reduces fuel consumption by 50% due to its hybrid-electric propulsion system, which integrates a fuel-efficient piston engine and an electric motor during high-power phases. Additionally, maintenance costs decrease by 14%, and for a 100-nautical-mile mission, operational costs are 9% lower than the conventional model. However, higher acquisition costs and reduced block speed increase total DOC by 3%. Scenario analyses highlight the impact of fuel prices, electricity costs, retrofit expenses, and airport charges, emphasizing the critical role of policy incentives. These findings suggest hybrid-electric aircraft can be viable with technological advancements and regulatory support. • Hybrid-electric aircraft DOC evaluated using a specialized cost methodology. • The Ampaire Eco Caravan cuts fuel consumption and emissions by 50%. • Operational costs are 9% lower, but acquisition costs increase DOC by 3%. • Fuel price, retrofit costs, and airport fees impact hybrid-electric aircraft viability. • Policy incentives are crucial for hybrid-electric aircraft adoption.