Electric bus charging infrastructure planning considering solar photovoltaics energy and shared micromobility
Poster (konferens), 2024

Global transportation electrification is advancing the net-zero goal, but intensive charging needs and infrastructure expansion pose challenges to charging infrastructure, the power grid, and land use. This study focuses on charging-energy infrastructure optimization for shared charging hubs for battery electric bus (BEB) and shared micromobility systems (SMS), making the best of solar photovoltaics. We present a bi-level mixed-integer linear programming model (B-MILM) to optimize BEB charging infrastructure, solar PV capacity, and BEB and SMS charging schedule jointly. The B-MILM is solved using a value-function-based exact approach. We design super valid inequalities based on the problem characteristics to reduce solution time by at least 98% for large-scale cases. A case study in Gothenburg, Sweden, involving 70 bus routes, 61 bus terminals, and over 12,000 shared e-scooters, demonstrates that solar PV and shared charging services yield annual profits 110%-120% above investment costs for public transport agencies. Additionally, charging dispatching costs for e-scooter operators are reduced by 54%, and daily BEB charging grid loads decrease by 3% to 34% across seasons. Based on average greenhouse gas emission levels in Europe, the greenhouse emissions from electricity consumption of BEBs and e-scooters are reduced by 3%. This study offers novel insights for sustainable charging infrastructure planning and management in transportation.

bi-level model

Solar PV

Sharing charging

Electric bus

Författare

Xiaohan Liu

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Kun Gao

Geologi och geoteknik

Swedish transport research conference 2024
Göteborg, Sweden,

Electrifying multimodal public transport with distributed renewable energy (e-REMPT)

Chalmers, 2024-01-01 -- 2025-12-31.

Styrkeområden

Transport

Ämneskategorier (SSIF 2011)

Transportteknik och logistik

Mer information

Senast uppdaterat

2025-03-01