While Task 1.1 focused on the firm-level and Task 1.2 investigated how firm strategies are shaped by investor decision-making, portfolio management and governance, Task 1.3 takes a broader systems and stakeholder approach to analyzing the energy transition. This starts from the observation that any energy transition strategy ultimately needs to be embedded in regional social networks, and that a meso-level approach to energy system analysis will bring about important and novel insights that may not be captured by purely micro- or macroeconomic approaches. Task 1.3 consists of two subtasks. Subtask 1.3.1 pursues an integrated approach, inspired by the ecological economics and industrial ecology literature. By looking into the potential contribution of energy regions towards the energy transition, it addresses an emerging empirical phenomenon – as evidenced by the increasing number of regional initiatives to increase energy efficiency and the share of renewables in Switzerland. Subtask 1.3.2 combines scientists at the interface of environmental economics and political science investigating how social acceptance of new energy infrastructure such as hydropower plants can be positively influenced, with a particular emphasis on siting procedures.