Abstract
Urban ‘polycentric’ experimentation is enabling a new understanding of the sustainability potential of cities across the world. Coupled with the rising prominence of ‘grid parity’ conditions for solar energy, it is becoming clear that cities have abundant opportunities to reconfigure urban energy economies on platforms fuelled mainly and, in a few more years, entirely on energy conservation and renewable (especially solar) energy.
Early evidence of the practical application of ‘solar cities’ models suggests the financial feasibility of city-wide development of electricity infrastructures based on conservation and renewables. The results of technical and economic potential investigations capture the promise of the model.
But a question remains: how can we realize the investment needed to implement solar cities.
We examine three pathways:
- ‘project-based solar development’;
- ‘strategic solar development’; and
- ‘infrastructure-scale solar city development’,
focusing in each case on solar electricity development since much of the conservation potential in cities is capable of self-financing (Byrne, J., & Taminiau, J. (2016).
A review of sustainable energy utility and energy service utility concepts and applications: Realizing ecological and social sustainability with a community utility. Wiley Interdisciplinary Reviews: Energy and Environment, 5(2), 136–154. doi10.1002/wene.171).
After review of some of the advantages and disadvantages of each approach, we recommend infrastructure-scale development as the most promising means to attracting city-wide, cost-effective, sustainable energy investment.
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