The Energy Architecture Performance Index 2015:
In the context of recent trends and the broader energy transition under way, the Energy Architecture Performance Index (EAPI) provides a tool for decision-makers to holistically benchmark nations’ energy systems. The EAPI aims to support governments and other stakeholders along the energy value chain in identifying the relative performance of elements of their energy systems, in order for best practices to be diffused more widely and poor practices targeted. First launched in 2013, the EAPI has since been used to benchmark the performance of energy systems globally, as well as to assess the current energy architecture performance of individual nations.
The EAPI is a composite index that focuses on tracking specific indicators to measure the energy system performance of 125 countries.8 At its core are 18 indicators defined across each side of the energy triangle: economic growth and development, environmental sustainability, and energy access and security (Figure 1). Scores (on a scale of 0 to 1) and rankings are calculated for each of these indicators. These are then aggregated based on defined weightings to calculate a score and ranking for each sub-index, and for the EAPI overall.
The EAPI provides a transparent and easily comparable set of measures that can help track progress, and open new perspectives on the specific challenges faced by individual countries in each region. There are six key principles at the core of the index:
- Output data only – use of output-oriented observational data (with a specific, definable relationship to the sub-index in question) or a best available proxy, rather than estimates
- Reliability – use of reliable source data from renowned institutions
- Reusability – data sourced from providers with which the EAPI can work on an annual basis, and that can therefore be updated with ease
- Quality – selected data that represents the best measure available, given existing constraints
- Completeness – use of data of adequate global and temporal coverage, and consistently treated and checked for periodicity to ensure the EAPI’s future sustainability
- Review – the methodology is reviewed annually to ensure accuracy and policy relevance.9
The full methodology behind the EAPI is available online at http://wef.ch/eapimethodology.