Всегда подозревал, что micro-CHP сейчас невыгодно потребителю

из-за высокой стоимости установок. Вот подтверждение
The investigation made in this study provides an overview on the variety of factors influencing the cost-effectiveness of micro-CHP systems. The main barriers for the cost-effectiveness of micro-CHP plants are their high investment cost. Especially in one- and two-family households, profitable investments are only possible in few specific cases. Even systems such as the Whispergen and the Ecopower 3.0, which are made for smaller homes, do not create positive net present values. Viable investments in CHP systems are found to occur only in the case of an annual thermal energy consumption of more than 35,000 kWh. The classical construction of a CHP system, covering just a small part of the required thermal power in addition to a peak-load boiler, appears to be the most profitable one. It is difficult to recommend a single CHP system as the best and most costeffective for a contractor. Our study reveals that the classic combustion engine technologies outrange state-of-the-art Stirling engine technology. We find further that especially the Whispergen system, if its price decreases, will fit into the niche for thermal energy demand below 15,000 kWh/a.