This report, part of a new series by IRENA, explores how renewable energy is financed, produced, distributed and consumed, and will chart the changing relationships it is bringing about between states, corporations and individuals.
This first volume focuses upon the power sector. It tells a story – about the trends driving this change, how the technology is evolving, who is financing it, and the wider benefits it will bring. Finally, it examines what an energy system powered by renewables might look like and how policy makers can further support the transformation.
Africa is well endowed with potential for hydro and solar power, but its other endowments – shortages of capital, skills, and governance capacity – make most of the green options relatively expensive, while its abundance of hydro-carbons makes fossil fuels relatively cheap. Current power shortages make expansion of power capacity a priority. Africa's endowments, and the consequent scarcities and relative prices, are not immutable and can be changed to bring opportunity costs in Africa closer to those in the rest of the world. The international community can support by increasing Africa's supply of the scarce factors of capital, skills, and governance.
This article appeared in the Energy Economics Supplemental Issue: Green Perspectives.
The concept of “green growth” can be fruitfully connected to concepts and theories in neoclassical economics including market externalities, Ricardian and Hotelling rents, and policies that would correct externalities such as Pigovian taxes or a cap and trade system set to achieve emissions reductions consistent with cost benefit assessment. Partial equilibrium concepts have been extended to general equilibrium models, including their realization in relatively detailed empirical models that faithfully adhere to theoretical concepts of neoclassical economics. With such models we are then able to see how resource depletion and environmental degradation are affecting the economy, and how efforts to reduce the impact of these environmental and resource constraints could improve economic growth and performance.
Green growth was a key theme of 2012's Rio+20 conference. There is, however, confusion about what should be sustained: Is it all encompassing development? Is it economic growth, greened or otherwise? Or is it human well-being? This commentary compares these concepts within a framework of sustainability categories. The reality test of measurability points to green growth rather than all-inclusive wealth, welfare or holistic development.
This paper uses a Directional Distance Function (DDF) and the Malmquist–Luenberger Productivity Index to estimate the changing patterns of ‘green’ total factor productivity (GTFP) growth of 38 Chinese industrial sectors during the period 1980–2010. Unlike the measures of traditional total factor productivity (TFP) growth, the DDF incorporates carbon dioxide emissions as an undesirable output directly into the production technology, which credit sectors for simultaneously reducing their emissions and increasing their output. Our estimates of aggregate and sector-level GTFP growth reveal that Chinese industry is not yet on the path towards sustainable, low-carbon growth. A dynamic panel data analysis of the determinants of GTFP across sectors is used to identify factors that might rectify this situation, including state owned enterprise (SOE) reform, the growth of small private enterprises, continued openness to foreign investment and higher spending on R&D, particularly in emission-intensive sectors.