1. IAE (2016), Key world energy statistics.
2. IRENA (2016), The Power to Change: Solar and Wind Cost Reduction Potential to 2025.
3. Bloomberg New Energy Finance, 2016 PV Market Outlook.
4. See https://cleantechnica.com/2016/05/02/lowest-solar-price-dubai-800-mw-solar-project/ for information about global solar bids evolution.
5. World Energy Council 2016: “E-storage shifting from costs to value,” World Energy Council, UK.