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The hydropower market has often been cited as the forgotten renewable energy market with the most untapped potential.

With its ability to generate low-carbon electricity on a significant global scale, hydropower currently ranks as the third-highest electricity-generating source after coal and natural gas.

The installed capacity of hydropower rose to 1330 GW as of 2020 and is expected to grow at a CAGR of 1.93% to 1520 GW by 2027.

As the potential of the hydropower market continues to grow, emerging technological trends in hydroelectricity generation are expected to see a major increase in investment over the coming years.

The Unleashed Potential Of Hydropower

Hydropower’s contribution to electricity generation stands at over 55% more than other renewables combined. Its growth has been largely driven by developing countries which have received investment through government funding to scale up projects to large scale operational hydropower plants.

This renewable energy source remains essential to meeting the electricity demand for up to 28 developing countries and has proved to be scalable and cost-effective. Hydropower plants are able to also match fluctuating demand levels as their operational flexibility means they can be just as easily stopped and restarted.

With much unleashed potential, one could argue that the scaling of hydropower could solve a number of current issues related to renewable energy production and help create better energy security for economies across the globe.

What Are The Different Types Of Hydropower Facilities?

A common misconception is that hydropower facilities require a dam, whereas in reality, dams are not essential to the production of this renewable energy source.

Three primary types of hydropower plants exist, each of which has its own benefits and utilises different site and facility designs.

  • Impoundment Facilities: This is the most common type of hydropower facility involving the usage of a dam to store river water in a reservoir to spin a turbine which then generates electricity. The impoundment facilities are a popularpumped choice for hydropower electricity generation as they are cost-effective and present opportunities for cross-border exportation of the generated electricity. They currently account for 50% of hydropower additions up through to 2030 and these dams can hold a number of different functionalities.
  • Diversion: This hydropower plant involves branching a section of a river off through a penstock and/or canal to a powerhouse which then stores the turbines required for electricity generation. Diversion or run-off hydropower projects have the smallest growth segment as they are primarily made up of smaller-scale projects below 10 MW.
  • Pumped Storage: Pumped storage hydropower is able to store electricity generated by a number of different renewable energy sources which include solar, wind, and nuclear. These plants then generate electricity by pumping water from an area of lower elevation to higher elevation. Pumped storage hydropower currently accounts for 30% of net hydropower additions through 2030 and is expecting to see more interest in this current decade due to the flexible storage of energy it offers.

What Makes Hydropower Installation Costs So High?

  • Capital Costs – Capital costs currently make up 80-90% of hydropower costs.
  • Operations and Maintenance Costs – The average amounts to around 2% of initial investment costs.

To see the full picture of how investment is impacted by the £/kW figure to its maximum installed power output, the chart below helps to explain the relationship between these two variables.

Source: Renewables First 

As illustrated above, smaller hydropower systems of around 25 – 50 kW are economically disadvantaged based on the ratio of the financial costs involved. However other qualitative factors should also be considered and valued in this case as sites which are capable of large-scale hydropower production usually pose a threat to environmental, sustainable, or social concerns. Therefore smaller sites will likely encounter less red tape and shorter approval times during the initial planning and construction phases of a hydropower plant.

How Can The Hydropower Industry Continue Scaling?

To ensure that governments worldwide are capitalising on the true potential of hydropower dams, it will remain essential for stakeholders involved to focus efforts on developing the industry.

As proven in many of the developing countries currently scaling hydropower operations, public policy and government funding are essential to attracting more interest from investors in this renewable energy source.

  • Policy – The implementation of sustainable policies around renewable energy will turn the heads of investors to consider other options such as hydropower. As private investors begin to consider expanding their portfolios to hydropower, it is crucial that substantive and comprehensive guidelines are set in place to build a stable foundation which in return will encourage investors. These sustainable energy policies will reduce risks related to construction, planning, environmental and social issues that hold the potential to hinder and de-rail new hydropower plants.
  • Maintenance & Upgrades – Investing in the necessary facilities to modernise hydropower plants that require maintenance. In many developed economies, the hydropower plants are ageing and require upgrades to continue performing at optimal levels.
  • Funding & Remuneration Schemes – Currently financial remuneration and prices do not attract many investors to this renewable energy sector as they do not reflect the stability and potential of long-term investments with high initial costs. It will be vital for governments to reflect the sustainable viability of this product.
  • Partnerships & Commercialisation – Partnerships of both the private and public sector would reduce risks for stakeholders involved and increase the appeal for private investors to take interest in new hydropower projects. By additionally focusing on the commercialisation of hydropower projects to create revenue certainty, advanced economies that are likelier to see investment from the private sector.
  • What Does the Future of Hydropower Look Like?

    Hydropower will become one of the key players as world economies begin to look for better energy security and transition to cleaner energy sources. It is expected that developing economies will become the driving factors behind the growth of hydropower projects as it remains an attractive option to meet the rising energy demands growing in parallel to the total population count. Particularly in Asia, Africa and Latin America, lies untapped potential with many geographic regions creating ideal locations for hydropower sites to be set up.

    Although initial startup costs may be high, modern large-scale hydropower plants will remain an economically-viable option for developing economies due to the long term benefits it can provide in comparison to its less sustainable counterparts. Governments and policymakers worldwide will need to prioritise passing legislation and policies that make the towering barriers surrounding hydropower, less intimidating to the private sector in order to attract the investment needed. By actioning favourable policies around this sector and reflecting the value of producing low-carbon electricity through economic and financial incentives, hydropower will be able to showcase its true potential and become a leading source of electricity globally.

    Market Watch

    The following countries are playing considerable roles in the growth of the hydropower sector:

    India

    India recently moved up the ranks, taking Japan’s spot, as the fifth largest hydropower producer with over 100 plants averaging above 25 MW each. As the population levels continue to grow, hydropower remains an economically viable option for this country to meet rising household electricity demand.

    However, this sector has begun to also see slower growth rates with multiple projects being delayed due to lengthy approval procedures. To promote growth in this sector again, The Central Electricity Authority (CEA) and Ministry of Power have passed a number of favourable hydropower policies.

    Turkey

    Ongoing hydropower developments will soon place this country in the lead for Europe’s largest expansion in energy capacity over the next few years. From 2018-2020, this country saw 52 hydro projects with a total installed capacity of 1,439 MW begin operating, and it is only looking to increase further.

    Turkey’s Energy and Natural Resources Ministry estimates that Turkey holds a potential of up to 433 billion kWh, making it an attractive area for investors. This is also due to its geographical advantages such as being situated between Asia and Europe and containing over 25 river basins.

    Canada

    Canada has the fourth-largest hydropower fleet coming behind China, Brazil and the United States. Over 60% of Canada’s national electricity supply is from hydropower making it an exemplary leader in clean energy production. It is estimated that the hydropower sector currently contributes ~$35 billion to Canada’s GDP (2013) and has created over 130,000 jobs across the country.

    Hydropower has also been the backbone of energy supplies for decades in Canada and still has the potential to grow even more. Currently Canada and the US have established electricity export partnerships and agreements in order to benefit the two economies.

    Argentina

    Hydroelectric power accounts for up to 60% of Argentina’s electricity-generating capabilities. With a feasible hydropower production potential of 130,000 GWh/year, it has been estimated that only 25% of its capabilities have been currently capitalised on.

    New projects such as the Nestor Kirchner and Jorge Cepernic dams have made headline news as these joint Argentinian-Chinese partnerships are expected to meet the daily electricity consumption demands of up to 1.5 million households in Argentina. These projects are expected to drastically reduce the country’s reliance on oil and gas import expenses.

    Laos

    Nicknamed the ‘Battery of Southeast Asia’, Laos is one of the few countries in the region propelling the movement in hydropower energy through an influx of investment in both hydropower site projects and electricity export opportunities. This is because geographically Laos has strong hydropower potential of up to 27,000 MW with the Mekong river flowing through it. The country plans to export up to 14,600 MW to neighbouring countries by 2025 as it continues to ramp up hydropower projects and the grids for electricity conversion. A majority of these hydropower projects are financed or partnered alongside Chinese firms, and this country currently remains one of the largest beneficiaries from China’s financial aid.

    China

    China is predicted to remain the single largest source of hydropower up until 2030, responsible for 40% of global supply. However in recent years, due to the lack of space and environmentally viable sites, the hydropower industry has since slowed amid more stringent environmental policies being introduced. It remains entirely possible that other countries may take up the leading hydropower spot in the coming decades.

    China, however, has continued to remain one of the biggest funding sources of hydropower projects. By 2030, over half of the upcoming hydropower projects in sub-Saharan Africa, Southeast Asia and Latin America will see some form of partnership or receive financial aid from China.


     

    Market Leaders and Regions

    Largest Hydropower Companies
    The following hydropower companies are responsible for generating the world’s supply of hydroelectricity.

    China Yangtze Power – 45.4GW
    Centrais Eletricas – 44.2GW
    Hydro-Quebec – 36.7GW
    RusHydro – 27.6GW
    Electricite de France – 22.7GW

    Leading Countries
    Countries that are experiencing significant growth in hydropower include:

    China – 356.4GW
    Brazil – 109.1GW
    US – 102.8GW
    Canada – 81.4GW
    India – 50.1GW

     

    Explore the questions we can answer for you:

    ✓ What are the pros and cons of choosing small-scale versus large-scale hydropower plants?
    ✓ What initial costs are encountered during the first stages of constructing a hydropower plant?
    ✓ What geographic and political factors should be considered when choosing the location for a hydropower plant?
    ✓ Will hydropower plants generate significant return on investments with such high initial costs?


     


     

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