2019年太阳能可利用等级报告 -Berkeley Lab（英文版）（75页）.pdf

1、Empirical Trends in Project Technology, Cost, Performance, and PPA Pricing in the United States 2019 Edition Authors: Mark Bolinger, Joachim Seel, Dana Robson Lawrence Berkeley National Laboratory December 2019 Table of ContentsTable of Contents List of AcronymsList of Acronyms . i i Executive Summa

2、ryExecutive Summary . ii ii 1. Introduction1. Introduction .5 5 2. Utility2. Utility- -Scale Photovoltaics (PV)Scale Photovoltaics (PV) . 1010 2.1 Installation and Technology Trends (690 projects, 24.6 GWAC) 11 Florida was the new national leader in utility-scale solar growth 11 Tracking c-Si projec

3、ts continued to dominate 2018 additions 13 More projects at lower-insolation sites, fixed-tilt mounts crowded out of sunny areas 14 Developers continued to favor larger array capacity relative to inverter capacity 16 Utility-scale PV+battery projects are becoming more common 17 2.2 Installed Project

4、 Prices (641 projects, 22.9 GWAC) 18 Median prices fell to $1.6/WAC ($1.2/WDC) in 2018 18 The price premium for tracking over fixed-tilt installations seemingly disappeared 20 Evidence of economies of scale among our 2018 sample 21 System prices vary by region 22 2.3 Operation and Maintenance Costs

5、(48 projects, 0.9 GWAC) 25 2.4 Capacity Factors (550 projects, 20.0 GWAC) 27 Wide range in capacity factors reflects differences in insolation, tracking, and ILR 27 Since 2013, competing drivers have reduced average capacity factors by project vintage 30 Performance degradation is evident, but is di

6、fficult to assess and attribute at the project level 31 2.5 Power Purchase Agreement Prices (290 contracts, 18.6 GWAC) and LCOE (640 projects, 22.9 GWAC) 34 PPA prices have fallen dramatically, in all regions of the country 36 An increasing number of PPAs (and projects in general) are including batt