Gas
Application Technologies (Commercial, Industrial
Use)
Objective
In October 2001, Osaka Gas Co., Ltd. launched the 9.8 kW mini cogeneration system "Genelight" to promote cogeneration systems widely in the commercial generator market. This market includes the food-service industry as well as the existing market sectors of public baths, nursing homes, and the hotel industry. This was in response to revisions in the Electricity Enterprises Law made in December 1995, which eliminated the licensed electrician requirement for generators smaller than 10 kW. Genelight makes use of gas-engine heat pump (GHP) technology to reduce initial and maintenance costs. Incorporating an inverter with built-in protection relays, it achieves interconnection with the commercial power grid. Consequently, its power generation utilization factor is high, while its installation cost is low. As of April 2008, three less-than-10 kW Genelight models were available, including 5, 6, and 9.9 kW systems. Furthermore, in April 2006, a blackout start-up version was added to the 9.9 kW model.
Features
- Application of GHP engine technology
-->Low equipment cost, low maintenance cost
(10,000-hour regular inspection intervals achieved for the first time for cogeneration systems), small package, and low noise. - 100% power generation utilization factor achieved
by system interconnection inverter
-->Improved economy - Inverter with built-in protection relays
-->Reduced electrical work cost of system interconnection - Labor savings in load selection and other engineering
work
--> Reduced installation cost - Licensed engineer not required for generators
less than 10 kW.
-->No personnel costs for licensed engineer. - Blackout start-up version serves as a backup power supply in case of power interruption.
System Configuration
System Interconnection with Incorporated Inverter
Specifications
| Power capacity | 5kW | 6kW | 9.9kW | |
|---|---|---|---|---|
| Model |
CP5VB |
GECC60A2N | CP-10VB1 | |
| Generation efficiency (%) LHV |
29.0 | 28.8 | 31.5 | |
| Heat recovery efficiency (%)LHV |
56.0 | 56.2 | 53.5 | |
| Combined efficiency (%)LHV |
85.0 | 85.0 | 85.0 | |
| Dimensions (mm) |
Width | 1100 | 1100 | 1470 |
| Depth | 500 | 660 | 800 | |
| Height | 1500 | 1500 | 1790 | |
| Weight (kg) | 410 | 465 | 790 | |
| Noise level (dB (A))*1 | 51 |
54 | 54 | |
| Regular inspection interval (h) | 10000 | 10000 | 10000 | |
- 1：Maximum measurement values taken in four directions at points 1.2 m above the floor and 1 m away from the equipment with the radiation fan at rest (anechoic-chamber equivalent)
Benefits
Genelight operates principally during periods of high electricity demand. The generated power saves the power provided by utilities' thermal plants. Compared with conventional energy supply comprising commercial power from thermal plants and gas boilers, the 9.9 kW Genelight system reduces primary energy consumption by 31.4% and CO2 emissions by 40.2%.
