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太陽光+蓄電 (solar-plus-storage) システムアーキテクチャ:米国における設計・価格・経済性の分析

Solar-plus-storage System Architectures: Design, Pricing and Economics in the US

発行 Greentech Media Inc. 商品コード 785934
出版日 ページ情報 英文
納期: 即日から翌営業日
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太陽光+蓄電 (solar-plus-storage) システムアーキテクチャ:米国における設計・価格・経済性の分析 Solar-plus-storage System Architectures: Design, Pricing and Economics in the US
出版日: 2019年01月29日 ページ情報: 英文
概要

米国では今後数年にかけて、太陽光+蓄電 (solar-plus-storage) システムがもっとも一般的な蓄電技術の導入先として発展を遂げる見通しです。2023年には同国の蓄電池導入数の50%超が太陽光発電とのセットとなると予想されています。システム設計が進化するなかで、プロジェクト開発の際にはアーキテクチャの選択が重要な検討事項となるでしょう。

当レポートでは、米国における太陽光+蓄電 (solar-plus-storage) システムの市場を調査し、システムアーキテクチャ、経済モデル、AC結合型およびDC結合型のシステム設計・経済性の比較、将来の展望などをまとめています。

第1章 エグゼクティブサマリー

第2章 イントロダクション

第3章 太陽光+蓄電システムのアーキテクチャ

第4章 太陽光+蓄電システムの推進因子

第5章 太陽光+蓄電システムの経済モデル

第6章 経済性の比較:AC結合型システム vs DC結合型システム

第7章 将来の太陽光+蓄電システム設計・アーキテクチャ

第8章 総論

目次

Over the coming years solar-plus-storage will take off as one of the most common applications of energy storage in the US. By 2023, more than 50% of annual storage deployments in the US are expected to be paired with solar. As system design evolves, choice of architecture will become an important consideration when developing solar-plus-storage projects.

In this report we compare the system economics of front-of-the-meter AC-coupled and DC-coupled solar-plus-storage systems and identify key attributes that will drive each of these architectures in both front-of-the-meter and behind-the-meter markets in the future. Our Power & Renewables reports and data provide deep insight into the current and future state of electricity generation.

Table of Contents

  • 1. Executive Summary
  • 2. Introduction
  • 3. Solar-plus-storage system architectures
  • 4. Drivers for solar-plus-storage
  • 5. Solar-plus-storage system economics model
  • 6. System economics for AC-versus DC-coupled solar-plus-storage
  • 7. Future of solar-plus-storage system design and architectures
  • 8. Conclusion

List of Figures

  • Annual storage deployments forecast (MW)
  • Annual solar deployments forecast (MW)
  • Annual solar-plus-storage forecast by segment (MW)
  • Recent solar-plus-storage PPA prices 2017-2019 ($/MWh)
  • AC-coupled solar-plus-storage system design
  • DC-coupled solar-plus-storage system design
  • DC-coupled solar-plus-storage system design with multi-port hybrid inverter
  • Solar-plus-storage value stack
  • Vendors launching products for FTM DC-coupling
  • System integrators driving DC-coupling in the FTM solar-plus-storage market
  • Cost-saving opportunities in a new solar-plus-storage system
  • Cost of storage inverters, 2018E-2023E ($/kW)
  • Input PPA assumptions
  • PV system assumptions and financing parameters
  • Solar-plus-storage system assumptions
  • Average day DC solar output profile at different ILRs (MWh)
  • YOY solar and storage system price declines, 2019E-2023E (%)
  • System cost comparison for new solar-plus-storage systems, 100 MW solar paired with 30MW/120MWh storage, 2018 ($)
  • Capex costs for 20 MW solar paired with 10 MW/40 MWh storage system ($, millions)
  • Capex costs for 100 MW solar paired with 30 MW/120 MWh storage system ($, millions)
  • Capex cost stack for AC-versus DC-coupled solar-plus-storage, 100 MW solar paired with 30 MW/120 MWh storage, ILR of 1.3 (%)
  • Revenues and costs for 100 MW solar paired with 30 MW/120 MWh storage system, ILR of 1.3 ($)
  • IRRs for AC-versus DC-coupled 100 MW solar paired with 30 MW/120 MWh storage systems at different ILRs (%)
  • LCOE sensitivity for AC-coupled solar-plus-storage at different ILRs ($/MWh)
  • LCOE sensitivity for DC-coupled solar-plus-storage at different ILRs ($/MWh)
  • Capex cost stack for AC-versus DC-coupled 20 MW solar paired with 10 MW/40 MWh storage at ILR of 1.3 (%)
  • Revenues and costs for 20 MW solar paired with 10 MW/40 MWh storage system at ILR of 1.3 ($)
  • IRRs for AC-versus DC-coupled 20 MW solar paired with 10 MW/40 MWh storage systems at different ILRs (%)
  • Solar-plus-storage use-case application by system design
  • IRRs for DC-coupled solar-plus-storage systems at different ILRs for projects installed in 2022 (%)
  • Storage-only BOS cost stack for different duration systems (%)
  • DC-coupled solar-plus-storage alternate system design
  • BTM AC versus DC coupling
  • Comparative analysis of advantages and disadvantages of AC versus DC coupling
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