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Article analysis:

The article is generally reliable and trustworthy, as it provides a detailed overview of the potential benefits of sectoral coupling for city energy systems, with a focus on smart charging strategies for electric cars and buses. The authors provide evidence to support their claims, such as citing previous studies that have examined the synergies between solar generation patterns and the charging of BECs, as well as discussing various strategies for EV integration into power systems.

However, there are some potential biases in the article that should be noted. For example, the authors do not explore any counterarguments or risks associated with sectoral coupling or smart charging strategies for EVs. Additionally, they do not present both sides equally when discussing market set-ups and pricing schemes to incentivize vehicle owners to use smart charging strategies and V2G - instead they focus solely on how these schemes could benefit cities.

Finally, it should also be noted that while the authors provide evidence to support their claims regarding sectoral coupling and smart charging strategies for EVs, they do not provide any evidence to support their claim that retail prices should reflect local marginal costs of electricity in order to incentivize a city energy system operation that makes use of sectoral coupling and flexibility similar to their modeling.