SDE Finalizing the Construction of the First Sea Wave Power Plant for China

By S.d.e. Ltd, PRNE
Wednesday, April 14, 2010

TEL AVIV, Israel, April 15, 2010 - SDE is finalizing the construction of the first of many sea
wave power plants to be installed in China during the upcoming month.

The 1MW sea wave power plant will be installed in the province
of Guangzhou, in the city of Dong Ping, and will represent the successful
beginning of the implementation of an overall 10,000MW plan to be executed in
Guangzhou in the near future. The construction of the new sea wave power
plant has received a lot of interest from the Chinese media, and the
governmental news channel even broadcasted a detailed report on the
construction site.

SDE's officials, Mr. Shmuel Ovadia, Managing Director of SDE,
and Inna Braverman, the International Marketing Manager of the company, flew
to China in order to conduct several meetings with the Mayor of Dong Ping and
with a large governmental foundation, that expressed its interest in funding
SDE's project all over China. The mayor had also expressed his keen interest
in the development of the sea wave power plants all over the city.

Similar sea wave power projects will be built in Nan San
Inland of Zhan Jiang city, where the Beach is 24KM and the wave's height it
between 2-3 meters, as well as in the province of Hainan, in which SDE's
partners are in the final stages of negotiations.

China has a great need for the swift implementation of SDE's
sea wave power technology due to the high rates of pollution in the country.
In fact, according to Time Magazine, the Chinese cities Linfen and Tianying
are the world's two most polluted cities, and the World Bank has reported
that 16 of 20 most polluted cities in the world are Chinese. Chinese cities
often seem wrapped in a toxic gray shroud. Apparently, only one percent of
the country's 560 million city dwellers breathe air considered safe by the
European Union.

According to the Ministry of Health, the pollution in China
had made cancer the country's leading cause of death. Ambient air pollution
alone is blamed for hundreds of thousands of deaths each year and nearly 500
million people lack access to safe drinking water.

China has many industrial cities where people rarely see the
sun, children are killed or sickened by lead poisoning or other types of
local pollution and the coastline is so swamped by algal red tides that large
sections of the ocean no longer sustain marine life.

According to Mr. Wang Jinan, one of China's leading
environmental researchers, "There is a pressure for change, but many people
refuse to accept that we need a new approach so soon." China's leaders also
recognize that they must change course. They are vowing to embrace a new
development model, which will allow for steady economic and industrial growth
while protecting the environment.

As a result, SDE's sea wave power technology is the perfect
solution to China's problems; it will provide China with a clean and
cost-efficient source of energy, which will minimize the pollution ranks in
the country, and avoid causing harm to the steady economic and industrial
growth of the country.

Currently, the Government has numerical targets for reducing
emissions and conserving energy, and major initiatives are on the way to
develop clean energy sources, like solar, wind and sea wave energy.

The technology of producing electricity from sea waves is
innovative and a leading method worldwide. Pollution and global warming as a
result of fuel usage have taught the world that the largest world resource to
create electricity is sea waves. With this new method, the system has the
highest efficiency in the world and is offered by a very attractive price.
SDE has international patent and also patents pending. To this day, the
company has built 8 sea wave power plant models, which were financed,
checked, and approved by the Israeli Government.

The erection cost of a 1MW S.D.E's power station starts from
US$650,000 while a comparable coal station costs US$1,500,000, a natural gas
station US$900,000 a solar station US$3,000,000 from solar sources, and a
wind station from $1,500,000. In addition, S.D.E's production cost per KW is
only US2 cents, compared to US3 cents from coal, US3.5 cents from natural
gas, US12 cents from solar energy, and US3.6 cents from wind.

The system that S.D.E has developed is able to supply 500
times more than the electricity requirements of the whole world population.

    For further details Please contact Ms. Inna Braverman,
    International Marketing Manager of S.D.E, or Mr. Shmuel Ovadia, CEO,
    Phone number: +972-03-73971071
    Fax Number: +972(0)3-6319239
    E-mail Address: abe@shani.net

For further details Please contact Ms. Inna Braverman, International Marketing Manager of S.D.E, or Mr. Shmuel Ovadia, CEO, Phone number: +972(0)3-73971071, Fax Number: +972(0)3-6319239, E-mail Address: abe at shani.net

Discussion
May 6, 2010: 6:59 am

Necessities for System Execution
1. Offshore Installation: Is a necessity due to preservation of marine life and preservation of shore line scenic view and tourist activities.
2. Structure: A structure is necessary for the system. Any should provide simple, light weight, ease of construction, maintenance and cost.
3. Mooring: Any should provide a viable mooting system, i.e. flexible, easy to install, economical, light weight, safe to navigation and can withstand high waves and storms.
4. Marin Life: No matter what system is used, drilling, pile driving and/or dead weight anchors are required or mooring the system into position.
5. Space requirements are 0.00273 square kilometers for 5 MW output compared to an average of 0.1 to 1.5 square km for other systems.
6. Scalability: As individual waves have limited energy, any system should be scalable, i.e., provide for addition of outputs of individual extracted wave energy. This can be achieved by adding pumped water to a high head or operating individual generators in parallel.
7. Output of System: Systems should provide loads as needed. The proposed systems operate as a single unit to provide electrical outputs for waves ranging from 1.5 to 8 meters:
a. For 1-WGD ranging from 3.23 to 96.48 kw per 90 degrees.
b. For a set of 10 units installed in line with the incoming wave provides an output ranging from 0.84 to 147.46 kw per one wave pass of 360 degrees.
c. Installing 10 sets, 10 units each in an area not exceeding 15 by 30 meters would provide an average output ranging from 8.4 kw to 1,474.6 KW (1.4746 MW).
8. Power transmission and control: The system should have autonomous unattended operation with suitable means of transmitting power and control cables to shore. This is achieved by installing power and control cables at the sea bed.
9. Anchor: An anchor at the seabed for holding the system in place is a must. The idea is to have minimal disturbance to the seabed and related marine life.
PROPOSAL
Three systems are proposed:
I. Wave Gear Drive -WGD - NEW
1. The Wave Gear Drive, WGD System is a new method for directly converting sea wave energy to mechanical drive using wave undulations and a buoyant float directly acting on a spiral spring or rack and pinion and VSG gear, to drive a positive displacement, rotary or centrifugal water pump that pumps a small quantity of water to a high head, collect it and feed it to an offshore hydro turbo generator to generate electric power and transmit it to the shore using power and control cables laid at the sea bed; or;
2. To drive a Variable Speed Input/Constant Speed Output (VSG) gear directly coupled to a 3-phase electric generator whose output runs in parallel with other A.C. generators, and is transmitted to shore using power and control cables laid at the sea bed.
3. Pumps or Generators are installed 5-meters below Mean Sea Level. Equipment are installed with quick coupling and decoupling means for ease of installation and maintenance.
4. Ideal for use on offshore oil rigs to generate electric power using direct drive generators or water pumps, or using water pumps to generate electric power and to pump cold water from 1-meter above sea bed and use the water temperature difference between surface and deep water for air conditioning (SWAC), or to generate additional electric power. In this case suction inlet is at 1-meter above the sea bed and suction lines are fixed to the mooring cables.
5. Should be a requirement to be installed on inhabited off shore oil platforms for air conditioning and electric power generation.
II. Wave Water Pumps - WWP
Utilize the wave energy to pump a small quantity of water to a high head, which is collected in a piping network and fed to a hydro-turbo generator to generate electric power at competitive cost.
A set of pumps up to ten and a mile wide may be installed in line with the incoming wave to extract most of the wave energy.
III. Wave Air Pumps - WAP
1. Utilize the kinetic energy of the wave to compresses a small quantity of air to a high pressure, which is collected in a piping network and fed into the air inlet of a turbo generator.
2. Fuel is injected as needed to maintain turbo generator output irrespective of availability of waves. Compressed air technology and fogging (adding water vapor to turbine air inlet) are known and proven technologies. The system generates energy at normal fuel rate in the absence of waves, and at reduced fuel consumption inversely proportional to wave heights.
3. Dependability of producing energy irrespective of availability of wave energy is achieved by controlling injected fuel
4. Ideal for off-shore wind turbine farms, as it utilizes the off-shore wind turbine supporting structure as a Wave Air Pump at negligible cost.
5. The WAP is ideal for sea water aeration. The WAP may be used to inject compressed air into the sea to enhance the oxidation process of organic materials.

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