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How Renewables Offer New Solutions for District Heating and Cooling

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Heating is the largest end user of energy, accounting for over 50% of global final energy consumption worldwide. At present, much of this demand is met by burning fossil fuels, making the sector a significant contributor to greenhouse gas emissions and air pollution. Renewables can play a significant role in decarbonising the way we heat homes and businesses.

Traditionally, biofuels have been the main alternative to fossil fuels in district heating and cooling. However recent improvements in building insulation and digitalisation have opened district energy to widely accessible, low-temperature renewables such as low-temperature geothermal, solar thermal and waste heat sources.

These sources are widely available in many regions. Yet, they remain largely untapped because they are not immediately compatible with current district energy infrastructure and existing building stock according to IRENA’s “Integrating Low-Temperature Renewables in District Energy Systems” published in collaboration with Aalborg university, Denmark.

Speaking during a recent workshop to launch the report, Miklos Antics, the President of the European Geothermal Energy Council, said more than 25% of the EU population lives in areas directly suitable for geothermal district heating.

The workshop was held under the framework of the Energy Solutions for Cities of the Future and under the umbrella of the Global Geothermal Alliance, with a focus on China with the support of the Chinese Renewable Energy Engineering Institute (CREEI). “District heating is of utmost importance to achieve decarbonised energy systems in China by 2060,” said Professor Brian Vad Mathiesen from Aalborg University.

For his part, Haukur Hardarsson, Chairman and Founder of Arctic Green Energy, highlighted the fact that Sinopec Green Energy connected about 60 million square meters of floor area to geothermal district heating systems, saving the country and the world close to 13 million tons of CO2 over the last decade – showing the environmental value of geothermal energy for heating and cooling.

IRENA’s analysis shares good practices from mature district heating and cooling markets with emerging markets and shows that a lack of data and a disconnect with building renovation strategies at the municipality level is holding back further integration of low-temperature renewables.

To overcome the challenges associated with the integration of low-temperature renewables into district heating and cooling, the report offers the following key recommendations:

  • Develop strategic heating and cooling plans based on clear political drivers and identify relevant stakeholders;
  • Elaborate technical scenarios based on heating and/or cooling demand and mapping of resources;
  • Integrate change of supply, modernization of the network and building renovations;
  • Promote the utilisation of locally available renewables for heating and cooling;
  • Establish enabling regulatory conditions, supportive financing options and business models
  • According to the report, heating and cooling challenges, such as issues with current energy supply, should be addressed in a co-ordinated and informed manner and with a long-term perspective.
  • “Development of district heating and cooling systems, particularly those that are compatible with low-temperature renewable energy resources, is one way to integrate more renewables in the heating and cooling sector. However, this requires a collaborative effort from all relevant stakeholders, to address the inherent challenges,” said IRENA’s Director of Country Engagement and Partnerships Gurbuz Gonul during the workshop.
  • “If action is taken, renewables can constitute up to 77% of the energy supplied to district heating energy systems by 2050, up from only 8% in 2017,” he added.
  • The high upfront capital costs associated with the construction and refurbishment of the building stock as well as of the district heating and cooling network are substantial and it can take a decade or longer before any profits are realised, according to the report. This makes these projects a good match for investors seeking long-term revenue streams rather than quick returns.
  • The report also highlights the role of national and local authorities in strategic planning for heating and cooling and supporting district energy operators by de-risking investments and facilitating access to direct funding from the public sector. Project developers can also benefit from technical assistance programmes that assess the viability of projects, support the development of district energy infrastructure in new markets, and evaluate renewable energy supply options.

To read the full report, click here.

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Hydrogen in North-Western Europe: A vision towards 2030

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North-West Europe has a well-developed hydrogen industry that could be at the edge of an unprecedented transformation should governments keep raising their ambitions for reducing greenhouse gas emissions, according to a new joint report by the International Energy Agency (IEA) and the Clingendael International Energy Programme (CIEP). 

The report, Hydrogen in North-Western Europe: A vision towards 2030, explores hydrogen developments, policies and potential for collaboration in the region. It was commissioned to inform discussions among governments from North-West Europe about the potential development of a regional hydrogen market. This intergovernmental dialogue was established at the Clean Energy Ministerial Hydrogen Initiative in 2020.

The report finds that the current policy landscape provides some momentum for the transformation of the hydrogen industry in North-West Europe towards 2030, but that it is insufficient to fully tap into the region’s potential to develop a large-scale low-carbon hydrogen value chain. More ambitious policies in line with the targets defined by the EU Green Deal or the UK Climate Change Act would drive a faster transformation.

If such a supportive policy framework were to be adopted, hydrogen demand in the region could grow by a third and low-carbon hydrogen could meet more than half of dedicated production, up from about 10% today, according to the report.

North-West European countries have already made significant progress developing their vision for the role hydrogen should play in their long-term energy strategies. These countries now face the challenge of moving beyond national discussions to establish a regional dialogue, an indispensable condition to develop the fully integrated hydrogen market the region needs. 

With the aim of informing this dialogue, the report identifies four priorities that should be addressed:

  • Build on the large unused potential to co-operate on hydrogen in the north-western European region.
  • Identify what is needed to develop an integrated regional market.
  • Develop supporting schemes with a holistic view of the hydrogen value chain.
  • Identify the best opportunities to simultaneously decarbonise current hydrogen production and deploy additional low-carbon supply.

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Seven Countries Account for Two-Thirds of Global Gas Flaring

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In an unprecedented year for the oil and gas industry, oil production declined by 8% in 2020, while global gas flaring reduced by 5%, according to satellite data compiled by the World Bank’s Global Gas Flaring Reduction Partnership (GGFR). Oil production dropped from 82 million barrels per day (b/d) in 2019 to 76 million b/d in 2020, as global gas flaring reduced from 150 billion cubic meters (bcm) in 2019 to 142 bcm in 2020. Nonetheless, the world still flared enough gas to power sub-Saharan Africa. The United States accounted for 70% of the global decline, with gas flaring falling by 32% from 2019 to 2020, due to an 8% drop in oil production, combined with new infrastructure to use gas that would otherwise be flared.

Gas flaring satellite data from 2020 reveals that Russia, Iraq, Iran, the United States, Algeria, Venezuela and Nigeria remain the top seven gas flaring countries for nine years running, since the first satellite was launched in 2012. These seven countries produce 40% of the world’s oil each year, but account for roughly two-thirds (65%) of global gas flaring. This trend is indicative of ongoing, though differing, challenges facing these countries. For example, the United States has thousands of individual flare sites, difficult to connect to a market, while a few high flaring oil fields in East Siberia in the Russian Federation are extremely remote, lacking the infrastructure to capture and transport the associated gas.

Gas flaring, the burning of natural gas associated with oil extraction, takes place due to a range of issues, from market and economic constraints, to a lack of appropriate regulation and political will. The practice results in a range of pollutants released into the atmosphere, including carbon dioxide, methane and black carbon (soot). The methane emissions from gas flaring contribute significantly to global warming in the short to medium term, because methane is over 80 times more powerful than carbon dioxide on a 20-year basis.

“In the wake of the COVID-19 pandemic, oil-dependent developing countries are feeling the pinch, with constrained revenues and budgets. But with gas flaring still releasing over 400 million tons of carbon dioxide equivalent emissions each year, now is the time for action. We must forge ahead with plans to dramatically reduce the direct emissions of the oil and gas sector, including from gas flaring,” said Demetrios Papathanasiou, Global Director for the Energy and Extractives Global Practice at the World Bank.

The World Bank’s GGFR is a trust fund and partnership of governments, oil companies, and multilateral organizations working to end routine gas flaring at oil production sites around the world. GGFR, in partnership with the U.S. National Oceanic and Atmospheric Administration (NOAA) and the Colorado School of Mines, has developed global gas flaring estimates based upon observations from two satellites, launched in 2012 and 2017. The advanced sensors of these satellites detect the heat emitted by gas flares as infrared emissions at global upstream oil and gas facilities.

“Awareness of gas flaring as a critical climate and resource management issue is greater than ever before. Almost 80 governments and oil companies have committed to Zero Routine Flaring within the next decade and some are also joining our global partnership, which is a very positive development. Gas flaring reduction projects require significant investment and take several years to produce results. In the lead-up to the next UN Climate Change conference in Glasgow, we continue to call upon oil-producing country governments and companies to place gas flaring reduction at the center of their climate action plans. To save the world from millions of tons of emissions a year, this 160-year-old industry practice must now come to an end.” said Zubin Bamji, Program Manager of the World Bank’s GGFR Partnership Trust Fund.

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IEA supports Indonesia’s plans for deploying renewable energy

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The IEA is carrying out a large work programme on power system enhancement with the Government of Indonesia to help it modernise the country’s electricity sector, including support for overcoming challenges inherent in integrating variable renewables like wind and solar PV.

As part of the work programme, the IEA hosted a series of webinars in early 2021 where Indonesia’s Ministry of Energy and Mineral Resources and national power utility PLN could learn from other countries’ experiences of integrating and setting targets for variable renewable energy.

An introductory session on the principles of integrating renewable energy was held ahead of the country specific sessions. In this session, the IEA presented its framework for renewable integration phases to the Ministry and PLN, highlighting the different challenges often faced during renewable integration as well as what flexibility options can be deployed to tackle these challenges.

In the first country session, IEA presented the main findings of the Thailand flexibility study that the Agency carried out in cooperation with EGAT, the Thai electricity utility. The study shows that Thailand has the technical capability to integrate larger shares of variable renewables, but that the lack of commercial flexibility is a major barrier for operating the power system in a more flexible way and thus is the main obstacle for integrating large amounts of renewables.

In the second country session, the Danish Energy Agency presented its work programme with the Government of Viet Nam. The sessions focused on important aspects for integration of renewables, such as the assessing the needs and implications of reserves and forecasting. The session also included a discussion on the main learning points from the boom in rooftop solar that Viet Nam has experienced in 2020. 

The third and last country session was on India. The IEA presented both national as well as state-level modelling in order to show some of the contextual differences between national models and models that focus on specific geographical regions. In India, the spot market accounts for only 10% of electricity generation, which shows that India, like Thailand, has some issues with commercial flexibility. The discussion also covered India’s level of dependency on physical power purchase agreements and its impacts on the flexibility of the power system.

All sessions were held behind closed doors to allow for an open discussion between the participating organisations on the issues of renewable integration and possible ways of addressing barriers. The IEA will continue the work with the Indonesian Ministry and PLN on this topic in order to facilitate a path towards a clean, affordable, secure and modern power sector in Indonesia.

This work in Indonesia is undertaken within the Clean Energy Transitions in Emerging Economies programme.

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