The Energy Institute is responsible for the economic, systems analysis and legal research related to the Underground Sun Storage project. Legal analysis is required to establish how existing legislation may apply to storing hydrogen underground and, once the findings of the technical tests are available, to draw conclusions as to the need for any changes in the law. The economic and systems analysis is intimately connected with an examination of the technical aspects of the project. This project component will consist of detailed investigations of means of integrating the technology within the existing industrial and economic environment, and an assessment of these options, as well as the likely systemic effects of the technology, based on the outcomes of technical and commercial analyses. A range of alternative solutions will also be considered as part of the economic and systems analysis.