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Our electronic controls manage microturbines using Capstone’s proprietary software and advanced algorithms. The controls: • start the turbogenerator and manage its load; • coordinate the functioning of the microturbine with the grid; • manage the speed, fuel flow, and exhaust temperature of the microturbine; • convert the variable frequency, up to a maximum of 1,600 Hertz, and variable voltage power produced by the generator into a usable output of either 50 or 60 Hertz AC or DC for HEV applications; and • provide digital communications to externally maintain and control the equipment. In addition, our proprietary Capstone Remote Monitoring Software (‘‘CRMS’’) allows end users to remotely operate and manage the microturbine. Unlike the technology of other power sources that require manual monitoring and maintenance, the CRMS allows end users to remotely and efficiently monitor performance, power generation and time of operation using our CRMS interface software with standard personal computers. This remote capability can provide end users with power generation flexibility and cost savings. Our Internet-based communication system, the Capstone Service Network (‘‘CSN’’), provides continuous remote monitoring and diagnostics to customers who purchase the service. If the CSN detects an out-of-limit condition or alarm, it automatically notifies the responsible distributor for immediate follow-up action. The C30 microturbines were initially designed to operate connected to an electric utility grid and to use a high pressure natural gas fuel source. We have expanded our microturbines’ functionality to operate with different fuels. The combustor system remains the same for all fuels except for the fuel injectors, which currently vary between liquid and gaseous fuels. The Capstone microturbines’ multi-fuel capability provides significant competitive advantages with respect to some of our selected vertical markets. Our C65 grid-connect and stand-alone microturbine power systems are listed by Underwriters Laboratories (‘‘UL’’) as meeting the UL 2200 stationary engine generator standards and the UL 1741 utility interconnection requirements. Our products are manufactured by processes that are ISO 9001:2000 and ISO 14001:2004 certified. In 2002, the California Energy Commission certified our 30 kW and 60 kW microturbine power systems as the first products to comply with the requirements of its ‘‘Rule 21’’ grid interconnection standard. This standard streamlines the process for connecting distributed generation systems to the grid in California. The benefits of achieving this standard include avoiding both costly external equipment procurement requirements and extensive site-by-site and utility-by-utility analysis. Our protective relay functionality has also been recognized by the State of New York, which has pre-cleared our microturbines for connection to New York’s electric utility grid. Our 60 kW microturbine power system was the first combustion power generation product to be certified by the CARB as meeting its stringent distributed generation emissions standards that went into effect in 2003. Our C65 microturbine now meets the even more stringent CARB 2007 standard for natural gas, as well as the 2008 CARB standard for landfill and digester gas fuels. The TA100 microturbine power system offers a digital communications interface which can be connected to an external controller (not sold by Capstone) to provide multiple unit and dual mode dispatching functionality. An external synchronization board is provided to parallel the electrical output in multiple unit configurations for stand-alone operation. 6PDF Image | 2011 Annual Report Capstone Turbine Corporation
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