# Presentation: 550550

## Microturbine CHP Applicationin the Hotel Business

**Microturbine CHP Application****in the Hotel Business**

**DOE Microturbine**
**Application Workshop**
**Embassy Suites Brea**
-  January 20, 2004

## Who is PowerHouse Energy

- A Southern California based Distributor and Authorized Service Provider of both traditional and state-of-the-art energy products
- It’s sole mission is to create a win-win solution for it’s customers by reducing energy costs and increasing profits through the use of on-site generation equipment while never reducing the customer’s security of supply
- PHE offers a variety of options for equipment ownership. It will install and service the equipment to insure seamless energy generation

## Who is Embassy Suites

- Embassy Suites, Brea is a full service hotel in the central retail district
- They have 228 guest rooms with a 400 seat restaurant with conference/meeting rooms
- The hotel operates 24 hours X 7 days a week
- They have  room heat pumps, central water heating, laundry, swimming pool and spa
- PHE partnered with the hotel in an energy service
- The hotel was interested in cost savings

## Pre-CHP Electrical Load

## Post CHP Installation

## Progress Checklist

## Project Schedule

## Organization

- Project Management- Thom McMahon/ Installation, Ken Nilsson/Service
- Funded, Owned and Operated by PowerHouse Energy
- Project Plan (Actual Date)
- 	-  Equipment Delivery	  	12/2002(Same)
- 	-  System Commissioned    	3/2003(5/2003)
- 	-  Monitoring Underway       	5/2003(5/2003)

## Pictures of Site

## Pictures of Site

## P&ID As Built

## Installation Improvements

- Improvements this Site
- 	-  Ventilation improvements
- 	-  Metering equipment and pool heat interfaces as           	original installation
- 	-  Selection of installation contractors
- 	-  Poor fit of supplied package exhaust ducting
- Target Improvements-Volume Installations
- 	-  Standard drawing packages
- 	-  Experienced installation contractors
- 	-  Volume material purchases

## Project Cost Table

## Electrical Performance

- Hours of operation to Date 4000 & 4100
- Average Electrical Performance 26%
- 65,000kW/9,200 Therms (LHV) (Dec. 2003)
- Estimated Parasitic Loses in KW- 5kW/hr
- Power Quality Tests Done as required by Southern California Edison for Interconnection acceptance.

## Thermal Performance

- Thermal Output used 420,000,Btu/hr
- Average water Delta T across HTX 12oF
- Average flow rate through HTX 70gpm
- CHP Efficiency 55%, (26%e+29%t)
- Expected Peak Total System Efficiency 70%
- Electrical 28%+ Thermal 40%
- Cooling system N/A

## Emission Performance

- No emission testing has been done to date.
- Emissions appear to be in line with Capstone estimates.

## O&M Performance

- Availability
- The equipment was unavailable for 612 hours due to equipment failure, (2 units including site issues).  Availability cumulative since start 94.4%.  15 site visits due to equipment, 15 due to data acquisition and site issues.
- Cost of O&M (less fuel)
- The current estimate of annual O&M costs excluding hot end replacement in total costs is $7,000 and 0.8cents/kWh, (2 units).

## Institutional Experience

- Building department and electric utility interconnection approvals were required.
- Project management overhead costs associated with approvals were approximately $2,500.
- No issues were encountered with either approval process.

## Supplier Support

- PHE was the supplier that “turn keyed” the installation.  Better understanding of radiant heat generation for ventilation of product would be helpful, ~70,000Btu/hr each w/gas compressor.
- Technical support was very good from Capstone with clear documentation.
- PHE is a Capstone Business Partner with a clear understanding of O&M costs.
- PHE took advantage of Capstone’s promotional two unit package with a 3-year back stop warranty of $0.008/kWh costs.

## General Experience

- Indoor installations need to account for radiant heat with ventilation.  Tight space installations may not be able to accommodate product improvements.
- PHE has gone on to do several other hotel installations, honing design and contractor work.  Current installation costs by PHE are now within 1-2% of planned or budget costs.
- Suggested development areas, monitoring capability of kW, thermal and gas use in unit.  Reliability of electrical components.