  The rapid growth in distributed energy sources on power grids leads to
increasingly decentralised energy management systems for the prediction of
power supply and demand and the dynamic setting of an energy price signal.
Within this emerging smart grid paradigm, electric vehicles can serve as
consumers, transporters, and providers of energy through two-way charging
stations, which highlights a critical feedback loop between the movement
patterns of these vehicles and the state of the energy grid. This paper
proposes a vision for an Internet of Mobile Energy (IoME), where energy and
information flow seamlessly across the power and transport sectors to enhance
the grid stability and end user welfare. We identify the key challenges of
trust, scalability, and privacy, particularly location and energy linking
privacy for EV owners, for realising the IoME vision. We propose an information
architecture for IoME that uses scalable blockchain to provide energy data
integrity and authenticity, and introduces one-time keys for public EV
transactions and a verifiable anonymous trip extraction method for EV users to
share their trip data while protecting their location privacy. We present an
example scenario that details the seamless and closed loop information flow
across the energy and transport sectors, along with a blockchain design and
transaction vocabulary for trusted decentralised transactions. We finally
discuss the open challenges presented by IoME that can unlock significant
benefits to grid stability, innovation, and end user welfare.
