1. Renewables working together: towards a 100% renewable energy supply
Mathis Rogner
Senior Analyst

2. About the International Hydropower Association Hydropower financing
Our mission
advancing sustainable hydropower
Four strategic objectives:
Advancing policies and strategies for the sector
Building a vibrant community
Creating a platform for knowledge
Delivering value for members
International Hydropower Association
World Wind Energy Conference 2017 Malmö

3. The “next generation” of renewable energy Hydropower financing
IEA, 2016
International Hydropower Association
World Wind Energy Conference 2017 Malmö

4. The “next generation” of renewable energy Hydropower financing0%
10%
20%
30%
40%
50%
60%
INDIA
JAPAN
BRAZIL
CHINA
USA
MEXICO
AUSTRALIA
SWEDEN
ITALY
SPAIN
BELGIUM UK
GERMANY
IRELAND
DENMARK
PV share
2015
Wind share
Additional PV
share 2021
Additional
wind share
2021
IEA, 2016
International Hydropower Association
World Wind Energy Conference 2017 Malmö

5. Policy, market and regulatory frameworks
The challenge of integration: flexibility
Hydropower financing
Flexibility of power system components
Properites of VRE
HYDROPOWER
Variable and not fully predicatable output
Smaller scale and distributed
Uses power converters to connect to the grid
Policy, market and regulatory frameworks
flexible generation
storage
grids
demand side
International Hydropower Association
World Wind Energy Conference 2017 Malmö

6. What does hydropower offer? Hydropower financing
Large range of low-carbon capacity available
Operational flexibility and efficiency
From kW to GW in a single project
Option to export electricity in regional grids
Fast start-up and shut-down
Highly efficient and adjustable output
Storage and back-up
Rapid availability, can be used as a back-up
Option to absorb surplus (pumped storage)
Multiple freshwater services
Water supply, irrigation, navigation, tourism
Climate-change adaptation (flood and drought mitigation)
International Hydropower Association
World Wind Energy Conference 2017 Malmö

7. 1,246 GW Status of hydropower in 2016 Hydropower financing
31.5 GW added in 2016, including 6.4 GW pumped storage
Est total:
1,246 GW
Total hydropower generation in 2016: ~4,100 TWh
IHA, 2017
International Hydropower Association
World Wind Energy Conference 2017 Malmö

8. Pumped storage as an vehicle for wind and solar Hydropower financing
REN21, 2017
International Hydropower Association
World Wind Energy Conference 2017 Malmö

9. Renewables working together
GEIDCO Summit | 22 February 2017
Renewables working together
International Hydropower Association
World Wind Energy Conference 2017 Malmö

10. Integrated water storage Pump-turbine generator
Naturstromspeicher:
wind-pumped Storage
Integrated water storage
Lower reservoir
Pump-turbine generator
(16 MW)
4 x Wind turbines Diameter: 132 m
Capacity: 3.4 MW
Hub height
≈ 172 m
Pumping during excess supply
Penstock
Head: 200 m
Water released during increased demand
The NATURSTROMSPEICHER Wind-Pumped Storage project in Germany is such an example of how innovation solutions have been merged together to form a hybrid energy system that utilize an integrated pumped-storage scheme to provide energy storage in near-real time to back-up intermittency in the wind turbine production.
The wind farm towers of the Naturstromspeicher are a prefabricated and fully standardised modular system. What is known as the active reservoir is located in the bottom part of the turbine tower. It stands in what we call the passive reservoir. This is connected by a penstock to an external reservoir that holds the majority of the water volume.
The pumped storage hydro-electric plant is available in three output classes (16, 24 and 32 KW). Even the power house is a standardised, modular design. It will have certified type approval and is fully electronically controlled.
International Hydropower Association
World Wind Energy Conference 2017 Malmö

11. El Hierro, Canary Islands: wind-pumped Storage
El Hierro is the smallest of the Canary Islands, in the Atlantic Ocean off the coast of Africa – with an area of 278km2, and a population of less than 11,000. The island was declared a UNESCO biosphere reserve in 2000, due to its flora and fauna.
El hierro is one of the world’s first fully energy self sufficient island system. Prior to implementing it’s wind/hydro hybrid station – it’s annual diesel consumption was 40,0000 barrels, with emissions of 18,7000 tonnes of CO2, 100 tonnes of sulphur dioxide and 400 tons of nitrogen oxides.
Taking advantage of its strong natural resources – plenty of wind and sun and favourable geography for pumped storage - El hierro made a strategic decision to ditch diesel and move towards 100% renewables. It has now installed a wind power plant as its principal generator – using 5, 2.3 MW wind turbines (total capacity 11.5MW). This is backed up by a pumped storage hydropower system using an existing volcano as the upper reservoir, and a purpose built lower reservoir. In generation mode, the PSP plant can supply MW and in pumping mode the pumps provide up to 10 MW.
The station was commissioned in 2014.
Future plans include switching to electric vehicles and installing solar panels to provide buildings with heating.
International Hydropower Association
World Wind Energy Conference 2017 Malmö

12. Floatovoltaics: solar – hydropower
Floating solar-photo-voltaic panels installed on hydro reservoirs are offering multiple benefits, where these types of installations are feasible:
Utilises existing transmission infrastructure
Water helps cooling and increases PV efficiency (10%)
Potential to reduce evaporation and conserve water
Alto Rabagao dam in Portugal
Balbina in Brazil
Benefits of “floatovoltaics” attached to hydropower reservoirs
Utilises existing transmission infrastructure
Water helps cooling and increases PV efficiency (10%)
Potential to reduce evaporation and conserve water
International Hydropower Association
World Wind Energy Conference 2017 Malmö

13. Longyangxia: solar – hydropower International Hydropower Association
World Wind Energy Conference 2017 Malmö

14. Cuoqin, China: 100% renewable microgrid
Status: 4200 populations, 700kW load.
Composition: 960 kW hydropower, 60 kW wind power, 640 kW PV and 6 MWh storage (0.3 MWh lithium MWh lead acid).
Characteristics: 100% renewable, the smart micro-grid and the highest altitude region in China.
Cuoqin, China: 100% renewable microgrid
Wind power and PV
Small hydropower
Energy storage
Inverter
1079km
Lhasa
Cuoqin
CEPRI, 2017
International Hydropower Association
World Wind Energy Conference 2017 Malmö

15. THANK YOU! Find out more about hydropower worldwide visit:
Mathis Rogner
07/11/2018