Power Bridge F.A.Q.

It is important to have multiple gas turbines so that programmed maintenance or accidental outages do not result in mandatory loss of ALL electricity generated by the plant.  One of these aeroderivative gas turbines can be replaced in 24 hours regardless of where in the world it is deployed.  An economy of scale is achieved with three 60 MW aeroderivative gas turbines feeding one steam turbine — the combination of which generates ~322 MW.  Standardized platforms help in uniform quality assurance in spare parts cost and availability, lower unit cost of all components, and interchangeably trained personnel on the same equipment rules and procedures.

The gas turbine power plant has traditionally been used by power utilities as an ‘emergency power resource’ or a ‘peaker’.  Unlike coal-fired or nuclear power stations which literally take days to turn on or shut down, the gas turbine can be started up and reach full output in 20 to 30 minutes.  In this peaker configuration, the open cycle gas turbine burns a huge amount of fuel — Utilizing natural gas, a 200 MW open cycle gas turbine (OCGT) requires 38.5 metric tons of natural gas per hour for 200 MWh of electricity.  That’s 739 metric tons per day of operation at 80% availability, or 22,176 metric tons per month.

We will natural gas to fuel our Siemens SGT A65 WLE ISI 3 on 1 One Pressured Fired CCGT system.  It requires 42.33 metric tonnes of natural gas per hour to generate 322 MWh of electricity.  That’s 1,016 metric tonnes per 24 hours’ of operation, or 30,901 metric tons per 24X7 month.

Fuel additive works with liquid.  SSL is a German fuel additive that has been able to add 15% more output from liquid fuel for a variety of vehicles & generators.  Its additive to fuel ratio is 1 to 23,000.  We plan to configure SSL to run in the gas turbine power plants combined with CNG if it demonstrates an increased power output of 15%.

The Power Bridge Program seeks to configure gas turbines not into emergency ‘peaker’ power plants that only operate 6% of the time, but into 80% available “base-load” power plants that can produce reliable cost-effective electricity.   In addition to liquid petroleum gas and SSL fuel additive, we plan to utilize a variety of heat-to-electricity conversion technologies to reduce the amount of fuel required to produce each kiloWATT hour of electricity.  Inlet fogging sub-systems will lower the temperature of air before compressing to increase efficiency.  Hot dry steam will be injected into and just after the combustion chamber to increase the pressure of the exhaust on the electricity turbine blades. A combined steam cycle turbine will use the exhaust from the electricity turbine to generate steam that turns a second stage electricity turbine.  A flow acceleration heat exchanger subsystem – a new innovation – utilizes the waste heat exhaust from the steam turbine (100 ˚ to 150 ˚ C.)  to accelerate supercritical CO₂ in a third closed electricity generation cycle.

• A combined cycle gas turbine plant will average 57% heat-to-electricity conversion efficiency.
• If our combination of sub-systems achieves 65% efficiency, this will increase the power generated from the same amount of fuel .

Energy Giant will provide the plant and operate it, selling all electricity generated by each CCGT platform to the off-taker under the terms and conditions of the power purchase agreement.  To do this Energy Giant has organized a Morocco-based, Siemens-trained EPC manager that will implement, operate, and maintain all of our Siemens combined cycle gas turbine platforms.

En.

B.A. Jaafar, EG’s CFO, works under investment advisory agreement with Hasselback Development which has long-term relationships with U.S. institutional investors, and Saudi Arabian institutions.