关键词: 3类电价区, 峰值小时数, 项目内部收益率

Abstract: Because of generation prices of photovoltaic power are in three classes in different areas in China, earnings of stations built in the areas, where may be of rich in solar power, are not always great. By establishing the“resource-electricity output” model and the financial analysis model, this paper set up a direct relationship between the resource and IRR in different tariff zones. The results were analyzed and the following conclusions were obtained: the projects in tariff zone of class Ⅰ will win the best benefits and will be the first choice for investors; apart from a small portion of projects with solar resource in better class, most of the projects in tariff zone of class Ⅲ can obtain a reasonable return on investments only when they gain extra subsidies. The IRR of the projects with the same resources will change by around 0.9% in different tariff zones; the IRR of the projects in the neighboring tariff zones will be the same when the peak hour change about 100~120 h.

Key words: three tariff zones, peak hours, Intemal Rate of Retum (IRR)