The energy world is marked by a series of deep disparities, the International Energy Agency says in its flagship report World Energy Outlook 2019, released November 13. Notable problems include the gap between the energy-rich and the energy-poor, the gap between the latest scientific evidence on climate and the ever-growing emissions, the gap between expectations of fast, renewables-driven energy transitions and the reality of today’s energy systems in which reliance on fossil fuels remains stubbornly high.
On the one hand, offshore wind power, which currently provides just 0.3% of global power generation, will expand impressively over the next two decades, boosting efforts to decarbonise energy systems and reduce air pollution as it becomes a growing part of electricity supply, the IEA said in an excerpt on the subsector published October 25. The IEA finds that global offshore wind capacity may increase 15-fold and attract around $1 trillion of cumulative investment by 2040. This is driven by falling costs, supportive government policies and some remarkable technological progress, such as larger turbines and floating foundations. The technology has the potential to grow far more strongly still, with stepped-up support from policy makers.
Similarly, the installation of solar PV systems on homes, commercial buildings and industrial facilities is set to take off over the next five years, transforming the way electricity is generated and consumed, according to the Agency’s renewable energy market forecast, dated October 21. Distributed PV accounts for almost half of the growth in the overall solar PV market through 2024.
Contrary to conventional wisdom, commercial and industrial applications rather than residential uses dominate distributed PV growth, accounting for three-quarters of new installations over the next five years. This is because economies of scale combined with better alignment of PV supply and electricity demand enable more self-consumption and bigger savings on electricity bills in the commercial and industrial sectors.
Still, the number of solar rooftop systems on homes is set to more than double to some 100 million by 2024, with the top markets on a per capita basis that year forecast to be Australia, Belgium, California, the Netherlands and Austria.
The renewable energy forecast for the world’s total renewable-based power capacity will grow by 50% between 2019 and 2024. That increase of 1,200 gigawatts – equivalent to the current total power capacity of the United States – is driven by cost reductions and concerted government policy efforts. Solar PV accounts for 60% of the rise. The share of renewables in global power generation is set to rise from 26% today to 30% in 2024.
On the other hand, the path the world is on right now is shown by the Current Policies Scenario from the World Outlook report, which provides a baseline picture of how global energy systems would evolve if governments make no changes to their existing policies. In this scenario, energy demand rises by 1.3% a year to 2040, resulting in strains across all aspects of energy markets and a continued strong upward march in energy-related emissions.
The Stated Policies Scenario, formerly known as the New Policies Scenario, incorporates today’s policy intentions and targets in addition to existing measures. The aim is to hold up a mirror to today’s plans and illustrate their consequences. The future outlined in this scenario is still well off track from the aim of a secure and sustainable energy future. It describes a world in 2040 where hundreds of millions of people still go without access to electricity, where pollution-related premature deaths remain near today’s elevated levels, and where CO2 emissions would lock in severe impacts from climate change.
The Sustainable Development Scenario indicates what needs to be done differently to fully achieve climate and other energy goals that policy makers around the world have set themselves. Achieving this scenario – a path fully aligned with the Paris Agreement aim of holding the rise in global temperatures to well below 2°C and pursuing efforts to limit it to 1.5°C – requires rapid and widespread changes across all parts of the energy system. Sharp emission cuts are achieved thanks to multiple fuels and technologies providing efficient and cost-effective energy services for all.
“What comes through with crystal clarity in this year’s World Energy Outlook is there is no single or simple solution to transforming global energy systems,” said Dr. Fatih Birol, the IEA’s Executive Director. “Many technologies and fuels have a part to play across all sectors of the economy. For this to happen, we need strong leadership from policy makers, as governments hold the clearest responsibility to act and have the greatest scope to shape the future.”
In the Stated Policies Scenario, energy demand increases by 1% per year to 2040. Low-carbon sources, led by solar PV, supply more than half of this growth, and natural gas accounts for another third. Oil demand flattens out in the 2030s, and coal use edges lower. Some parts of the energy sector, led by electricity, undergo rapid transformations. Some countries, notably those with “net zero” aspirations, go far in reshaping all aspects of their supply and consumption.
However, the momentum behind clean energy is insufficient to offset the effects of an expanding global economy and growing population. The rise in emissions slows but does not peak before 2040.
Shale output from the United States is set to stay higher for longer than previously projected, reshaping global markets, trade flows and security. In the Stated Policies Scenario, annual US production growth slows from the breakneck pace seen in recent years, but the United States still accounts for 85% of the increase in global oil production to 2030, and for 30% of the increase in gas. By 2025, total US shale output (oil and gas) overtakes total oil and gas production from Russia.