NewEnergyNews: TODAY’S STUDY: The Cost And Performance Of New Energy


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  • WEEKEND VIDEOS, April 17-18:
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    Tuesday, July 31, 2018

    TODAY’S STUDY: The Cost And Performance Of New Energy

    NREL 2018 Annual Technology Baseline

    July 2018 (National Renewable Energy Laboratory)

    The ATB in 2018

    In July 2018, NREL released the 2018 ATB, including the 2018 ATB Cost and Performance Summary of current and projected technology cost and performance data—capacity factor, capital expenditures, fuel cost, operations and maintenance costs, and levelized costs of energy—for 12 generation technologies.

    NREL 2018 Annual Technology Baseline

    The NREL Annual Technology Baseline (ATB)-which is documented here-provides a transparent set of technology cost and performance data for NREL analysis. The ATB data are freely available for use by others in their energy analysis. Learn more about the approach and methodology employed by the ATB, including the sources of current costs it uses and projections on which it relies.

    The ATB represents a populated framework to identify technology-specific cost and performance parameters or other investment decision metrics across a range of resource characteristics, sites, or fuel price assumptions for electricity generation technologies both at present and with projections through 2050. Because of the lag time associated with data development, the base year for the 2018 ATB is 2016. The ATB website includes:

    -A comparison of input assumptions to recent historical trends (which demonstrates the extent to which model inputs represent the current state of technology)

    -Projections of future technology cost and performance relative to other published projections (which illustrate results for a variety of sources)

    -Normalized definitions of variables.

    2018 Annual Technology Baseline Cost and Performance Summary

    The table and figures below summarize current (2016) and projected (2030, 2050) technology cost and performance from the 2017 ATB data spreadsheet by generation technology and year, including CF (capacity factor) range, CAPEX (capital expenditure) range, fuel cost, O&M (operations and maintenance) cost (fixed and variable), and calculated levelized cost of energy (LCOE) range.

    Levelized cost of energy (LCOE) is a simple metric that combines the primary technology cost and performance parameters: CAPEX, O&M, and CF. It is included in the ATB for illustrative purposes. The ATB focuses on defining the primary cost and performance parameters for use in electric sector modeling or other analysis where more sophisticated comparisons among technologies are made. The LCOE accounts for the energy component of electric system planning and operation. The LCOE uses an annual average capacity factor when spreading costs over the anticipated energy generation. This annual capacity factor ignores specific operating behavior such as ramping, start-up, and shutdown that could be relevant for more detailed evaluations of generator cost and value. Electricity generation technologies have different capabilities to provide such services. For example, wind and PV are primarily energy service providers while the other electricity generation technologies provide capacity and flexibility services in addition to energy. These capacity and flexibility services are difficult to value and depend strongly on the system in which a new generation plant is introduced. These services are represented in electric sector models such as the ReEDS model and corresponding analysis results such as the Standard Scenarios.

    To estimate LCOE, assumptions about the cost of capital to finance electricity generation projects are required, and the LCOE calculations are sensitive to these financial assumptions. Three project finance structures are used within the ATB:

    R&D Only Financial Assumptions: This sensitivity case allows technology-specific changes to debt interest rates, return on equity rates, and debt fraction to reflect effects of R&D on technological risk perception, but it holds background rates constant at 2016 values from AEO 2018 and excludes effects of tax reform, tax credits, and tariffs. A constant cost recovery period-or period over which the initial capital investment is recovered-of 30 years is assumed for all technologies.

    R&D Only + Market Financial Assumptions: This sensitivity case retains the technology-specific changes to debt interest, return on equity rates, and debt fraction from the R&D Only case and adds in the variation over time consistent with AEO 2018, as well as effects of tax reform, tax credits, and tariffs. As in the R&D Only case, a constant cost recovery period-or period over which the initial capital investment is recovered-of 30 years is assumed for all technologies. For a detailed discussion of these assumptions, see Changes from 2017 ATB to 2018 ATB.

    ReEDS Financial Assumptions: ReEDS uses the R&D Only + Market Financial Assumptions for the "Mid" technology cost scenario.

    These parameters are allowed to vary by year. Effects of the PV import tariffs are represented, as are the recent changes to Modified Accelerated Cost Recovery System (MACRS) and corporate tax rates. The equations and variables used to estimate LCOE are defined on the equations and variables page. For illustration of the impact of changing financial structures such as WACC, see Project Finance Impact on LCOE.

    For the renewable electricity generation technologies, Constant, Mid, and Low technology cost scenarios appearing in the table and figures refer to a range of perspectives based on publicly available literature. These three technology advance scenarios are generally described as follows:

    Constant: Base Year (or near-term estimates of projects under construction) equivalent through 2050 maintains current relative technology cost differences.

    Mid: technology advances through continued industry growth, public and private R&D investments, and market conditions relative to current levels that may be characterized as " likely," or " not surprising"

    Low: Technology advances that may occur with breakthroughs, increased public and private R&D investments, and/or other market conditions that lead to cost and performance levels that may be characterized as the " limit of surprise" , but not necessarily the absolute low bound.

    For conventional technologies, Constant, Mid, and Low technology cost designations appearing in the tables and figures refer to a range of fuel price projections derived from AEO 2017.

    The following technology abbreviations are shown: CC: combined cycle…CCS: carbon capture and storage…CSP: concentrating solar power…CT: combustion turbine…IGCC: integrated gasification combined cycle…PC: pulverized coal…TES: thermal energy storage.

    Cost and Performance Summary Tables for the Mid Cost Scenario

    R&D Only 2016

    R&D Only 2030

    R&D Only 2050

    R&D + Market 2016

    R&D + Market 2030

    R&D + Market 2050

    …The ATB plant characteristics (and associated resource quality) that most closely align with recently installed or anticipated near-term installations of electricity generation plants are as follows (see individual technology sections for description of ATB representative plant characteristics):

    Land-based wind - TRG 4…Offshore wind - TRGs 3-5…Utility-scale PV - Kansas City…Commercial PV - Kansas City..Residential PV - Kansas City…CSP - Excellent resource…Geothermal - Hydrothermal Flash…Hydropower - NPD 4…Natural gas - Gas CC - High CF and Gas-CC-CCF-High CF…Coal - Coal-New - High CF and Coal-CCS-30%-High CF…Nuclear - no range represented in the ATB; this may be developed in future collaborations with nuclear experts…Biopower - Dedicated…

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