Based on the initial results of this analysis , we know that each EV bus we add to our fleet will require 170 kWh per day to complete its daily route before recharging again at night . We also know that an average PTV will consume approximately 306 kWh per day . Therefore , with 26 buses and 46 PTV , the total estimated annual consumption by these two fleets if fully electrified is 6.75 million kWh or roughly 3.0 % of Dulles International ’ s 2019 electricity consumption . With 21 buses at Reagan National , full electrification represents roughly 1.5 % of 2019 electricity consumption . Layering in electric GSEs over time at both locations will further increase the electricity consumption from these electrified transportation systems and equipment .
By modeling various scenarios of increased electricity consumption that may result as we electrify major elements of our airport operations , we can also set more realistic goals as it relates to overall airport electricity consumption . For example , rather than targeting a reduction in electricity use on a perpassenger basis , based on the data , maintaining our 2019 per-passenger levels going forward may in fact be quite an achievement as we electrify our operations .
Summary
The decisions made in the built environment in many cases have impacts lasting 50 or more years . Upfront savings from investing in lower-cost but less-efficient products and materials can be offset by higher operating costs for decades to come . Careful , deliberate consideration from a sustainability perspective is critical when it comes to new construction and renovations . Once built , operating our facilities directly impacts how much energy we consume . Making smart investments in operations will lead to more sustainable levels of energy consumption over time . The last element to our sustainable energy strategy is the source of the energy that we consume and where it is produced . Procuring more renewable and emission-free electricity from our utility partners and complimenting that with on-site renewable energy generation is a priority so that the energy we do use is as clean and sustainably produced as possible . Together , these three pillars of smart building , efficient operations , and renewably sourced energy underlie one of our major priorities in our ongoing sustainability planning process , sustainable energy usage .
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