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Clean and efficient heat for industry

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Authors:  WEO Energy Analysts Elie Bellevrat and Kira West

Industrial heat makes up two-thirds of industrial energy demand and almost one-fifth of global energy consumption. It also constitutes most of the direct industrial CO2 emitted each year, as the vast majority of industrial heat originates from fossil-fuel combustion. Yet despite these impressive figures, industrial heat is often missing from energy analyses. That is why this year’s World Energy Outlook takes a deep dive in this important segment of our energy system.

While industrial heat demand – at all temperature levels – grows in the central scenario of the World Energy Outlook 2017, the underlying drivers are different depending on temperature requirements. Low- and medium-temperature heat (below 400 degrees Celsius) accounts for three-quarters of the total growth in heat demand in industry by 2040, driven by less energy-intensive industries.

This is a reversal of historical trends: in the last 25 years, high-temperature heat represented two-thirds of overall heat demand growth, driven by China’s rapid development of heavy industries such as steel and cement. That said, developing Asia continues to drive industrial heat demand growth in our outlook: the growth in low- to medium-temperature needs in this region alone represents about half of the global industrial heat demand increase in use to 2040.

Low-temperature heat use grows in most regions through 2040, except in the European Union and Japan. The outlook for high-temperature heat varies even more across regions, including among developing countries. It decreases in China with the country’s shift to a less energy-intensive development pathway, while it increases in India as the country becomes, by large distance, the main global driver.

As industrial heat demand continues to grow so does its share in energy-related CO2 emissions, accounting for a quarter of global emissions by 2040. Any efforts taken to reduce this global trend face unique challenges. First, industrial heat is often generated on-site, making it more difficult to regulate than a more centralized sector such as large thermal power generation. There is also limited policy focus in this area compared with other sectors.

Second, while heating needs for residential and commercial buildings are fairly standard, industrial heat encompasses a wide variety of temperature levels for diverse processes and end-uses. For instance, cement kilns require high-temperature, while drying or washing applications in the food industry operate at lower temperatures.

Different technology and fuel options are available depending on the required temperature level, but these are often not interchangeable. For example, low-temperature heat from a heat pump cannot be substituted for high-temperature heat from a gas boiler.

Today’s industrial heat demand relies mainly on fossil fuels, biomass and electricity, and only very small shares of renewable resources in certain sectors. Therefore decarbonisation would require a dramatic shift in how industrial heat is generated. Yet this goal is instrumental to following a low-carbon development pathway as defined in the Sustainable Development Scenario, a new global scenario providing an integrated way to achieve three critical policy goals simultaneously: climate stabilisation, cleaner air and universal access to modern energy. The best option for reducing energy use of industrial heat will depend on the specific use and required temperature.

Fuel switching can provide some benefit, for instance substituting gas for coal, but for more ambitious climate targets more transformative solutions are needed. For example, under certain conditions, electrification can be a low-cost and sustainable option ­– heat pumps can be economical solutions for low- and medium-temperature needs. Electrification may also be possible for specific high-temperature industrial processes, such as electricity-based steel production. However the sustainability of electrification depends on broad decarbonisation of the power sector to actually reduce emissions at the system level.

Direct renewable heat sources such as solar and geothermal can also be economical for applications below 400 degrees Celsius, but they are not easy to integrate in all industrial facilities. Bioenergy can be used for high-temperature heat demand, but is resource-constrained and only economical and sustainable under certain operating conditions and in certain regions.

Industrial heat can be decarbonised through the deployment of carbon capture, utilization and storage (CCUS). This can include, for instance, technologies to remove CO2 emissions from flue gas before recycling the CO2 in industrial processes, such as for methanol production, or storing it permanently.

Finally, end-use efficiency, through the use of modern equipment, improved insulation or heat recovery, can reduce final demand before the heat is even generated – often, limiting overall heat requirements is the first strategy adopted, before taking actions to decarbonise remaining heat use.

Ultimately, widespread deployment of energy efficiency and a least cost mix of these options can point to a more sustainable future for industrial heat. Putting the appropriate regulatory framework in place will be key to ensuring that investments are targeted in a way that makes this future possible.

First published in International Energy Agency

Energy

Higher Shares of Renewable Energy Central to Sustainable Development Across Southeast Asia

MD Staff

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Southeast Asian countries are on course to meet their aspirational renewable energy target of a 23 per cent share of total primary energy supply by 2025, according to new analysis from the International Renewable Energy Agency (IRENA). Achieving this target would also significantly improve the access to affordable clean energy in the region in line with its pursuit of Sustainable Development Goal (SDG) 7.

In the report, Renewable Energy Market Analysis: Southeast Asia – launched during the United Nations Global SDG7 Conference in Bangkok, IRENA highlights that renewable energy is proving key to expanding energy access in a region where 65 million people lack it. With Southeast Asia’s vast, untapped renewables potential, considerable opportunities exist to accelerate renewables deployment in the power sector but also in heating, cooling and transport. Strong enabling and investment frameworks however need to be put in place to overcome barriers facing renewables uptake.

“Southeast Asia is making important progress towards the diversification of its energy supply, and is recognising that renewables are a cost-competitive solution to power economic growth and meet rising energy demand ” said IRENA Director-General Adnan Z. Amin at the launch event during the Conference.

“The accelerated adoption of renewable energy offers broad environmental, economic and social benefits, including creating jobs, reducing air pollution and tackling climate change,” continued Mr. Amin. “Policy makers and other development actors should prioritise investment in clean, reliable and affordable energy as a pillar of development across the region.”

Renewable Energy Market Analysis: Southeast Asia covers the critical considerations for effective policy-making to accelerate the energy transformation, and analyses trends in energy supply and consumption at the regional and national level. It also examines the investment trends and policy instruments supporting the current deployment of renewable energy in a region where economic growth exceeds 4 per cent. Southeast Asia’s renewable energy potential is also explored, both in terms of resource potential, and the spectrum of benefits the transition to a sustainable energy future brings.

The report notes that in 2016, 611,000 people were employed in Southeast Asia’s renewables sector, primarily in liquid biofuels, however up to 2.2 million people could be employed in the sector by 2030 should renewables scale-up in line with the region’s potential.

Synergies between decentralised renewable energy and livelihood development, whether in rural, urban or island settings are also highlighted. Drawing on a number of projects that demonstrate how decentralised renewable energy solutions — such as micro-hydro and biogas solutions based on local entrepreneurship and strong community participation  — the analysis draws parallels between modern energy services and socio-economic development.

The report forms part of IRENA’s wider body of work in the region, including country-level engagement and regional initiatives, advancing joint efforts of IRENA and the governments of the ASEAN to accelerate the region’s transition to low-carbon, sustainable energy.

It is also part of IRENA’s Renewable Energy Market Analysis series capturing knowledge and experience from different regions to identify emerging public policy and market development trends. The first two editions covered the GCC (Gulf Co-operation Council) region (2015) and Latin America (2016).

The full report can be downloaded, here.

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Energy

Concentrating Solar: Delivering Renewable Electricity When It’s Needed

MD Staff

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Last year, right after graduating from college, Hajar Abjeg left her vibrant hometown of Agadir on the west coast of Morocco to live in the middle of the desert in Ouarzazate. A newly minted engineer, her goal was to work at the sprawling solar complex on the outskirts of the city because, she said, it was the future.

“What’s exciting for me about this plant (is) that we use a resource that’s taken for granted… to produce something that is essential for us,” Abjeg said. “The more we study this kind of plant, the more we operate it, the more we find ways to make it as efficient as possible, and the less reliant (we are) on traditional energy-producing methods such as fossil fuels. And in the long term, that’s fantastic.”

Abjeg is not alone in her optimism.

Concentrating solar power (CSP) is moving ahead in many countries, especially in the Middle East, North Africa and Latin America, where exceptional year-round solar resources and vast swathes of available land make it an attractive option, often over traditional sources of power such as coal and oil.

With thermal storage that is superior to batteries for bulk energy storage, CSP provides power that is dispatchable any time there is demand for electricity. The plants store heat from the sun in large tanks of molten salt – where it can be stored for hours, days or as long as needed — and turn it into electricity on cloudy days or during peak usage, which occurs at night for many countries in the Middle East and North Africa. This allows electric utilities to regulate electricity production and integrate other variable renewable sources of electricity – solar photovoltaic (PV) or wind – into their energy mix more easily.

In 2017, CSP had a global installed capacity of 5.1 GW. That number is expected to reach 10 GW by 2022, with almost all new capacity incorporating storage, according to the International Energy Agency. Worldwide, 23 countries have CSP projects. While the largest installed capacities are in the United States and Spain, there are CSP plants in operation or under development in numerous other countries, including the United Arab Emirates, Egypt, Israel, India, China, South Africa, Chile, Mexico, Australia, Kuwait and Saudi Arabia.

In Morocco, the Noor Ouarzazate CSP project is the country’s first utility-scale solar energy complex, and expects to reach over 500 megawatts (MW) of installed capacity, ultimately supplying power to more than 1 million Moroccans and contributing to Morocco’s goal of producing 42 percent of its electricity through renewable sources by 2020.

But while CSP will undoubtedly play a role in the energy mix for some countries, significant hurdles remain.

The high cost of setting up a CSP plant is one such challenge. CSP technology is expensive and more time-consuming to build than wind or solar PV. Developing countries already face difficulties in financing capital-intensive infrastructure, so for a relatively new technology like CSP, investment can be much harder to attract. In many cases, the World Bank and other international financial institutions have stepped in and provided concessional financing to help attract private investors and make the market for CSP competitive and drive down prices even further.

Concern around costs, especially when compared to solar PV, is also a hurdle. But prices are dropping – in 2017 the cost per kilowatt hour (kWh) fell to 6 US cents in Australia and 7.3 US cents in Dubai.  Also, as CSP has a built-in storage solution, the true comparison is against solar PV plus batteries – the price of which are also falling, but remain expensive. Without costly battery storage, PV often cannot deliver power when its value is highest—which is where CSP shines. It offers the guarantee of continuous electricity production – especially at night – something solar PV cannot do.

Ultimately, solar PV plus some form of storage will likely be CSP’s biggest competitor.  But for the moment, CSP has a potentially important role in the energy mix for many countries – particularly those with abundant sunshine and available land – helping improve energy security and In Morocco, CSP is expected to decrease dependence on oil by about 2.5 million tons and reduce carbon emissions by 760,000 tons per year, CSP is expected to decrease dependence on oil by about 2.5 million tons and reduce carbon emissions by 760,000 tons per year. The Noor Ouarzazate project has also encouraged several start-ups in the country and youth, and women in particular, to pursue education and jobs in the renewable energy sector.

“The future of CSP is very bright,” said Abjeg. “When I first walked in here, (I saw) the sheer size of the plant and how much energy they produce. To produce that just from collecting sun rays – it’s amazing.”

World Bank

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Energy

EU Doubling Renewables by 2030 Positive for Economy, Key to Emission Reductions

MD Staff

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The European Union (EU) can increase the share of renewable energy in its energy mix to 34 per cent by 2030 – double the share in 2016 – with a net positive economic impact, finds a report by the International Renewable Energy Agency (IRENA), launched in Brussels.

Presenting the findings during a launch event, ‘Renewable Energy Prospects for the European Union’ – developed at the request of the European Commission – IRENA’s Director-General Mr. Adnan Z. Amin highlighted that achieving higher shares of renewable energy is possible with today’s technology, and would trigger additional investments of around EUR 368 billion until 2030 – equal to an average annual contribution of 0.3 per cent of the GDP of the EU. The number of people employed in the sector across the EU – currently 1.2 million – would grow significantly under a revised strategy.

Raising the share of renewable energy would help reduce emissions by a further 15 per cent by 2030 – an amount equivalent to Italy’s total emissions. These reductions would bring the EU in line with its goal to reduce emissions by 40 per cent compared to 1990 levels, and set it on a positive pathway towards longer-term decarbonisation. The increase would result in savings of between EUR 44 billion and EUR 113 billion per year by 2030, when accounting for savings related to the cost of energy, and avoided environmental and health costs.

“For decades now, through ambitious long-term targets and strong policy measures, Europe has been at the forefront of global renewable energy deployment,” said IRENA Director-General Adnan Z. Amin. “With an ambitious and achievable new renewable energy strategy, the EU can deliver market certainty to investors and developers, strengthen economic activity, grow jobs, improve health and put the EU on a stronger decarbonisation pathway in line with its climate objectives.”

Welcoming the timeliness of the report, Mr. Miguel Arias Cañete, European Commissioner for Energy and Climate Action said: “The report confirms our own assessments that the costs of renewables have come down significantly in the last couple of years, and that we need to consider these new realities in our ambition levels for the upcoming negotiations to finalise Europe’s renewable energy policies.”

The report highlights that all EU Member States have additional cost-effective renewable energy potential, noting that renewable heating and cooling options account for more than one-third of the EU’s additional renewables potential. Furthermore, all renewable transport options will be needed to realise EU’s long-term decarbonisation objectives.

Additional key findings from the report, include:

  • Reaching a 34% renewable share by 2030 would require an estimated average investment in renewable energy of around EUR 62 billion per year.
  • The renewable energy potential identified would result in 327 GW of installed wind capacity an additional 97 GW compared to business as usual, and 270 GW of solar, an 86 GW increase on business as usual.
  • Accelerated adoption of heat pumps and electric vehicles would increase electricity to 27 per cent of total final energy consumption, up from 24 per cent in a business as usual scenario.
  • The share of renewable energy in the power sector would rise to 50 per cent by 2030, compared to 29 per cent in 2015.
  • In end-use sectors, renewable energy would account for 42 per cent of energy in buildings, 36 per cent in industry and 17 per cent in transport.
  • All renewable transport options are needed, including electric vehicles and – both advanced and conventional – biofuels to realise long-term EU decarbonisation objectives.

The report is a contribution to the ongoing discussions on the European Commission’s ‘Clean Energy for All Europeans’ package, tabled in November 2016, which proposed a framework to support renewable energy deployment.

Renewable Energy Prospects for the European Union is part of IRENA’s renewable energy roadmap, REmap, which determines the potential for countries, regions and the world to scale up renewables to ensure an affordable and sustainable energy future. The roadmap focuses on renewable technology options in power, as well as heating, cooling and transport. The REmap study for the EU is based on deep analysis of existing REmap studies for 10 EU Member States (accounting for 73 per cent of EU energy use), complemented and aggregated with high-level analyses for the other 18 EU Member States.

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