Annex 3
HYDRA—FLOATING
NEAR AND
OFFSHORE WAVE
ENERGY PLANT
Assumptions
| Discount Rate | 8 per cent
|
| Plant Life | 20 years
|
| Base case: |
|
| — CAPEX | £2.0 million
|
| — Annual average output |
700 kWs |
| — Incident wave energy |
30 kWs/m |
| Future Devices |
|
| 5 years |
|
| CAPEX | £1.75 million
|
| Annual average output | 800 kWs
|
| 10 years |
|
| CAPEX | £1.50 million
|
| Annual average output | 800 kWs
|
Operation and maintenance costs together with grid connection
costs are included.
Grid reinforcement costs are not considered.
These figures all assume that the device is located in an
area having an annual average incident wave energy of 30 kWs per
metre. The location of devices in more energetic wave environments
will result in increased annual output and lower unit costs of
power.
| 
