Non capisco perchè .... una centrale elettrica "Combinata" come abbiamo attualmente al max rende all'abitazione il 40% del consumato quì abbiamo (E mica è detto che non si possa fare di meglio) :
MCHP1.0K2 features Honda’s EXlink (Extended Expansion Linkage Engine),[SUP]*1[/SUP] whose expansion stroke is longer than its intake stroke, resulting in a high expansion ratio for greatly increased thermal efficiency and fuel efficiency. Based on EXlink and Honda’s original sine wave inverter power generation technology, MCHP1.0K2 offers power generation efficiency of 26.3%,[SUP]*2[/SUP] as compared to 22.5% for the previous model. In addition, thanks to its high-efficiency heat circulation system, which thoroughly recovers the heat the engine generates, MCHP1.0K2 offers combined power and heat generation efficiency of 92.0%,[SUP]*3[/SUP] as compared to 85.5% for the previous model. By virtue of these enhancements, as part of a household cogeneration system that includes a water heater, MCHP1.0K2 can help a household save ¥50,000 in power and heating costs per year.[SUP]*4[/SUP] MCHP1.0K2 also features the world’s most compact design for a cogeneration unit,[SUP]*5[/SUP] making it easy to install in a wide variety of homes.
In 2003, Honda began sales of its first compact household cogeneration unit, which combined a gas engine with Honda’s original sine wave inverter power generation technology. Under the brand name ECOWILL, cogeneration systems composed of the Honda cogeneration unit and a water heater utilizing exhaust heat have been sold by gas utilities across Japan and installed in some 108,000 households.[SUP]*6
Long-life spark plugs and a large-capacity oil tank allow for a maintenance interval of 6,000 hours of use or three years, whichever comes first.[/SUP]