[a] Increasing the share of renewables in global mix from current today’s 18% to 36% by 2030, would allow CO2 emissions savings of 8.6 Gt; additional savings of about 7.3 Gt of CO2 could be achieved if doubling the global rate of improvement in energy efficiency also takes place.
[b] CERES (2014) provides 10 key recommendations for investors, companies and policymakers to increase annual global investment in clean energy to at least $1 trillion by 2030. Among them, supporting regulatory reforms to electric utility business models and support policies to de-risk deployment of clean energy sources and technologies.
[c] According to IRENA (2014), 5.7 million people were employed in the renewable energy industry worldwide in 2012
[d] Reference  discusses support policy instruments for renewable energy heat generation in particular. However, both, advantages and disadvantages of different instruments as discussed in the article would also apply to electricity generation.
[e] E.g. economic policy-making tradition, exact political definition and scope, technological dimension or location of policy execution.
[f] Excluding investments in large hydro and including smart technologies.
[g] 5% for large projects; 5.6% for smaller ones .
[h] 4.5% .
[i] Or over $1.9 trillion (almost 10% of the world´s governmental state budgets) when considering lower value-added taxes for fossil fuels compared to other traded commodities, and externalities of $ 25/ton of CO2 
[j] This unfavourable balance of investments, augmented by the huge economic support given to fossil fuels, have locked-in the global energy system to 550 billion tons of cumulative CO2 emissions up to 2035.
[k] Investments in conventional energy, particularly fossil fuels have been growing since 1995. It is estimated that, the additional cost of the fossil infrastructure incurred since 1995 is equivalent to $2,778 billion in 2013 alone.
[l] All descriptions taken from IPCC (2011) .
[m] All examples taken from IEA/IRENA (2013) . All examples classified as “In force” by original source.
[n] All descriptions taken from IPCC (2011) .
[o] All examples taken from IEA/IRENA (2013) . All examples classified as “In force” by original source.
[p] All descriptions taken from IPCC (2011) .
[q] All examples taken from IEA/IRENA (2013) . All examples classified as “In force” by original source.