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CHP CASE STUDY #2 – INNS OF AMERICA The Capstone microturbine installation at Inns of America in Carlsbad, California, was completed in August 2002 by California Power Partners (Calpwr). It included a Capstone C60 with fuel gas booster and separate hot water heat recovery module. Figure 6 shows the hotel with an inset photo of the 60 kW microturbine. As for the Radisson, this microCHP system provides both thermal and electric base load for this hotel. Energy savings were estimated at 40%. This lowered the daily per room energy cost by $4.00 – a significant portion of the hotel’s profit margin. Figure 6. –C60 CHP System at Inns of America While this installation is saving the hotel owner money every day, there is a unique attribute that provided even more value than anyone envisioned when the decision to purchase this system was made. The hotel owner decided to purchase Capstone’s dual mode version microturbine, with the capability to provide power even when the electric utility is not available. The logic was to avoid the cost of a traditional backup generator, thereby improving the eco- nomics of this project. Such traditional diesel backup generators are designed and permitted to operate only for short periods of time in case of a utility outage. But mic- roturbines certified by the California Air Resources Board can operate continuously without the need for local air permits. In October of 2003, Southern California was ravaged by multiple wildfires that lasted days and crippled the state with huge property and personal losses. Carlsbad, where the hotel is located, and the nearby San Diego region were especially hard hit. Power lines were shut down, and many homes and businesses. Figure 7 is a satellite picture of Southern California that shows the breadth of the fires’ destruction. During this time, the Inns of America lights remained on, powered by the Capstone 60kW microturbine. In support of the local community, the Inns donated a number of Figure 7. – Satellite Photo of California Wild Fires rooms for people who were displaced or otherwise in need. Local businesses began using the hotel’s business center, and the Inns of America became an emergency base of operations for several groups. The result for the hotel was increased business and a strengthened relationship with the community – things that were never directly considered in their original decision to install a microCHP system. CHP CASE STUDY #3 – BAULI RESTAURANT The US is not alone in facing extended power outages. On September 28, 2003 Italy faced a multi-hour power outage. The Bauli Grill restaurant in Verona had already installed a Capstone C60 microturbine-based CHP system with the help of the national electric utility. The primary driver for this installation was cost savings, made possible with the highly energy efficient CHP solution shown in figure 8. Figure 8. – C60 CHP System at Bauli Restaurant Page 4 of 6PDF Image | CHP Case Studies – Saving Money and Increasing Security
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