The hydropower teams within Pöyry Energy have extensive experience with the development of national and international hydropower projects. We are an interdisciplinary and dedicated group of experts covering all relevant fields required for a hydropower development with high quality standards.
Run-of-river schemes make an important contribution to meet base load electricity requirements. Often constructed in the bed of large rivers, run-of-river schemes not only generate electricity, but often also provide flood protection and can contribute to recreational and tourism development. The design criteria have to be consistent with ecological standards and regulations.
The often-competing requirements of energy generation, flood protection, sediment transport and ecology have to be optimized for the development of run-of-river schemes. Pöyry has extensive experience in such complex and interdisciplinary issues and can support you to make the most out of your project.
For such services, Pöyry can call on experts with comprehensive expertise not only for the design of new hydropower plants but also for the rehabilitation of existing run-of-river schemes.
High-Head Hydropower Plants
Besides ensuring the supply of mainly peak electricity, reservoir storage schemes often also provide water for irrigation and industrial/domestic supply, as well as flood protection and recreational benefits. Such hydropower schemes are complex and the planning and design of their components, such as different types of high dams, large hydraulic structures, long tunnels and surface or underground power stations, requires wide-ranging expertise and in depth know-how. Pöyry can provide such services due to our extensive and diverse project portfolio and many years of relevant hands-on experience.
In recent decades, our specialists have participated in the engineering of some of the largest hydropower storage schemes ever built, and the experience gained from these projects makes Pöyry one of the world’s leading consultancy companies for hydropower engineering.
Our experiences cover all types of gravity-, arch- and fill dams as well as roller-compacted concrete (RCC) dams. The power waterways, hydraulic structures, powerhouse and electro-mechanical equipment are key parts of any high-head hydropower scheme, which are covered by Pöyry’s core competencies.
Optimized and sustainable solutions can only be developed by combining technical-, economic and ecological expertise, which Pöyry can offer for your project.
Pumped-storage Power Plants
Pumped-storage schemes are designed to store energy by pumping water from a lower reservoir into an upper reservoir during periods of surplus energy in a power grid. During periods of high energy demand the water is released back into the lower reservoir through the turbines and electricity is generated and feeds into the grid.
Pumped-storage plants gain additional importance with the increased development of renewable energy such as wind and solar. Pumped-storage is still the most proven and economic technology to store electrical energy in large scale in a clean, flexible and renewable way. Pumped-storage schemes also provide valuable services for the stability of electricity grids and reserve capacities due to its ability to react within a short time on load changes in the grid.
Pöyry’s experience in the design and development of pumped-storage plants dates back to the 1960s. The first pumped-storage plants designed by Pöyry are the 240 MW Hongrin-Léman PSP in Switzerland (completed 1971), and the 231 MW Roßhag PSP in Austria (1965 to 1972). Since then, Pöyry has provided engineering services for more than 60 pumped-storage projects worldwide. With the recently completed pumped-storage plants in the Austrian and Swiss Alps, Pöyry has proven its extensive competence as one of the world’s leading consultancies involved with the latest developments of pumped-storage technology.
The adaptation, expansion and repair of existing hydropower plants is gaining importance worldwide, because older assets are reaching end-of-life so extending the lifetime and thus usefulness of the asset is often far more economical than investing in new plants. Interdisciplinary planning and coordination is the key for a successful implementation. We make your project a success with our extensive experience in the rehabilitation of hydropower plants.
Rehabilitation can be a challenge. Our goal is to develop and realize the best solution for our clients. Our ranges of services cover the following areas:
- Assessment of plant
- Development of an individual modernization plan
- Design and tendering
- Support during tender process
- Execution design and monitoring
- Commissioning and software engineering
Small Hydropower Plants
Small hydropower plants are a renewable source of energy and valuable in protecting the security of supply in a decentralized energy system.
We have been involved in the planning, design and development of small hydropower plants for over 50 years and have been able to gain extensive experience.
Our range of services covers all areas of small hydro power plants. We offer a tailor-made solution for your project:
- All relevant engineering services
- General contractor
- Planning, design and tendering
- Authority approval process
- Economic evaluation
- Supply of equipment
- Commissioning services
Services and References
We offer a wide range of consulting and engineering services supporting sustainable water resources management as well as state-of-the-art hydropower development and operation.