Polycentricity in the Water-Energy Nexus: a comparison polycentric governance traits and implications for adaptive capacity of water user associations in Spain

This paper assesses the merits of polycentricity by looking at the water-energy nexus in the Spanish irrigation sector. In the last decades, the Spanish electricity and water governance systems have transitioned from relatively monocentric, top-down arrangements to arrangements that exhibit traits of polycentricity. This paper characterizes both governance systems against a series of polycentricity traits and provision and production activities. Then the paper assesses the merits of the featured systems against the capacity of water user associations (WUAs) to adapt to water and electricity supply dynamics.  The study relies on quantitative and archival data collected from a set of 38 irrigation systems located in the Northeast of Spain as well as secondary data from the broader water, energy and irrigation sectors. As illustrated in the analysis, WUAs can play a key role in integrating the management of water and electricity. They do so locally, via a diversity of institutional and operational adaptations. This role, however, requires sufficient levels of autonomy, clear rules that shape the interactions of WUAS with other water and electricity authorities, and a relatively competitive environment.