Technical Specifications

Item Number	Description	Specification
1	Pumps	Wave powered high pressure pumps
2	Recovery	Pelton wheel (power/pressure recovery device – pumping)
3	Sensor systems	SCADA (Supervisory Control and Data Acquisition)
4	Controllers	Integrated PLC (Programmable Logic Controller) for SCADA
5	Operating temperature	15-32 Celsius
6	Recovery rate	30%
7	Energy consumption (T-27 Celsius)	Self sufficient
8	Electrical supply	N/A – direct wave powered pumps
9	Power consumption	N/A – self sufficient
10	Power stability	N/A – wave energy regime variations mitigated with water storage supplementation
11	Production capacity	10,000 or 20,000 or other as required cubic meters per day
12	Production pressure	Residual pressure from brine stream enables the re-vpressurisation of the fresh water to be pumped to an altitude of up to 500m above sea level
13	Water storage	3-4 hours – allocate with on-shore or other (dependent on pipeline availability)
14	Water quality	WHO quality recommendations & South African regulations for potable water
15	Marine access	Up to 800 meters
16	Plant height above sea level	Up to 10 meters
17	Distance from shore	Wave powered high pressure pumps
18	Site on-shore allocation	5,000 square meters on land with a pipeline connecting the shore facility with a field of wave pumps
19	Site off-shore allocation/10m	Seabed: Field of wave pumps approximately 800m off-shore covering an area of approximately 5000m2 of seabed Floating:Total surface area of sea that would be covered by floating devices would cover an area of 1000m2. Floatation devices are submersible and shall be slightly positively buoyant
20	Installation	Configuration: Containerised or skid mounted
21	Saline extraction	Up to 30,000 cubic meters per day with 1.5m sand around the intake head/discharge diffusers @ 20 to 27 Celsius
22	Extraction depth	10-15 meters
23	Marine pipe type	Shore dig and bury – entire pipeline route consists of 1m sand with no hard rocks
24	Tank size	Approximately 4,000 cubic meters
25	Main building	100 to 120 square meters with Operations Center, Data Center and office space
26	SWRO housing	Core systems for site security and communication
27	Core management systems	Wave powered high pressure pumps
28	Operator control systems	Operations and performance management systems
29	Marine monitoring	Surveillance of marine installations
30	Monitoring & management	Site and support systems for SCADA
31	Data management & integrated site data	Plant Performance and Efficiency Data production
32	Site development	Concrete slabs and paving
33	Plant type	SWRO system (Sea Water Reverse Osmosis)
34	Off-shore unit capacity	500kLD of fresh water per day
35	Off-shore unit sea state data	Production possible from moderate conditions of 1,4m wave height and an 18 second wave period

Marine Requirement Specifications

The site and other implementation pre-requisites for implementation ensure modular and fast deployment. Reasonable industry assumptions are made and changes required may result in scope variations. Meeting site criteria is essential for site selection for both plant and marine sections. The specification supports an off-shore pump system intake with physical water characteristics of TDS<36,000 ppm:

Feed Water Parameters	Units	Normal	Maximum
Turbidity	NTU	<10	<25
TSS	mg/L	<20	<50
TOC	mg/L	<5	<15
COD	mg/L	<15	<30
Total oil & grease	mg/L	Negligible	<1
Total iron	mg/L	<0.2
Total manganese	mg/L	<0.05
Total colour	Pt-Co/L	<0.1	<20
Total hardness as CaCO3	mg/L	<2,000	<3,000
Product Water Parameters	Units	Expected Value
Turbidity	MTU	<0.2
SDI	–	<3

Additional Specifications

Contribution pipes with main dual intake pipes of up to 800m terminated with a manifold connecting the pipeline to a field of wave pumps and equipped with pre-filtration systems:

1. Buried through the surf zone
2. Anchored to the sea floor to a seawater depth of approximately 10~15m
3. Each wave pump draws its water through a pre-filtration system buried up to 6m deep in sand

Discharge:

1. Single brine discharge pipeline of up to 500m
2. Buried through the surf zone and anchored to the sea floor

Brine dispersion diffusing is to be mounted at the correct distance from shore and the intake heads
No further treatment

Any work on the marine sector such as shore digging assumes sand and the ability to bury the entire pipeline route. Soil type of 1m sand along the marine routes required. Any rocks or cliffs in or out of the water that prevent the gravitational discharge feed of sea water result in a variation (change) request. Such tunneling, as well as under large roads, rail roads, etc. can result in scope variations.

SWRO General Requirements

The land with suitable soil and geotechnical conditions for executing the project, shall be provided to the Service Provider free of charge, for the entire duration of the project.
Marine access and sufficient area for wave pump systems and pipelines. This includes the requisite areas on the seabed as well as floating components.
The Customer is responsible of all community relationships and other social impact.
The Service Provider is to be provided with permits for buildings, plans, regulatory and other zoning requirements as well as licenses within 21 days to enable the commencement of the installation of the System and its components.
Right of way for the related pipelines (off-shore marine section, between the intake pumps to plant, between plant and client reservoir (if applicable)) including installation thereof, shall be granted free of any charge, for the entire duration of the project.
Access roads to site and along the pipelines shall be made available, free of any charge, for the entire duration of the project.
The output of the system will vary as the sea/wave conditions vary. No penalties can be levied against the Service Provider for delivery that is comparable to the expected output during any particular sea state. The capacity of the storage needs to be large enough to modulate the differences between the actual output and the demands at any particular time.
All approvals necessary for the execution of the project, including without limitation, with regards to permits, licenses, infrastructure and so on, whether to be granted by the client, or any governmental, municipal, private or other authority, shall be granted in a timely manner and in accordance with the project schedule. The party whose responsibility it is to procure these permits, license approvals and the like shall at all times keep the other party informed of any possible delays that may be experienced in obtaining these approvals.