Four-leave Clover

Installation with integrated energysysteem

● Saves Fossil fuel● Saves space by combining:

● Wind-energy● Solar-energy● Hydro-energy● Delivering energy for the

Frisian polder wateringpumps

● Location Kornwerderzand. Afsluitdijk

Kornwerderzand

Polder

Sustainable integrated energy-systeem

Energy source● Wind-energy● Solar-energy● Waterpower-energy

Challenges● Fishpass● Birdfriendly● Supplies energy to pump the

Frisian Polder

Wind-energy

● Energy gained by movement-energy of air(wind) converted in a usable form, for example in elektricity

● Windmills

Advantage● Low carbon energy. No

emission of greenhousegasses● Free energy● Saving of fossil fuel● 7% of energy consumption. 2,5

million households

Disadvantage● Nuisance (shadow of the

wicks, view, flicker)● Birds (collision, brood)● Investment● Difficult permit

Windenergy

Solar-energy

● Energy in the form of light and warmth

● Source of energy● Solarpanels met photovoltaic

cells

Advantace● Green energy. No emmision of

greenhousegasses● The sun is free energy● Saving of fossiele fuels

Disadvantage● Appearance● Glare● Investment

Irradiation angle

Hydroelectric energy

● Energy coming from a difference of altitude or floadingspeed in water

Hydraulische turbine● Francisturbine. Height of fall.

Flow rate.● Kaplanturbine. Small height

of fall, hight flow rate● Peltonturbine. Low flow rate.

Large height of fall.

Advantage● Green energy. No emmision of

greenhousegasses● Free energy● Saving of fossiele fuels● Lots of water in the Netherlands

Disadvantage● Blokkade for animals● Investment● Small height of fall● Max. 5% of total energy-

consumption possible

Hydro electric powerstation

Fishpassage● Gives fish the possibility to

take a barrier● Most cases a dike or a dam

● The Netherlands are a delta-area and has a large diversity of fish species that life in a delta or want to migrate through the area.

● Migrationfish (Eel)● Brackishwaterfish (plaice fish)

Advantage● Positive for the stock of fish

diversity of species

Disadvantage● Costly● Complicated

Fishpassage

Challenges

● Solarpanels. Which type and how to secure them. How to capture the most sunlight (angle of incidence, follows movement of sun)?

● Cablework in a salty environnement?● Cleaning of the parts of the installation● How can you make the mill friendly for birds?● How to limit nuisance?● Hydroelectric powerstation. Which turbine. How does the

construction look like● Fishpassage. In which manner the fish can take the obstacle?