2023-12-31-世界银行-解锁能源转型_太阳能+储能项目规划指南_104页_3mb

报告摘要

Summary

Report Focus: This report provides guidelines for planning and implementing solar-plus-storage projects as part of the global energy transition, particularly in developing countries. It addresses the shift from fossil-fueled thermal generation to cleaner, more sustainable energy sources.

1. Energy Transition

The global trend toward hybrid projects (combining solar, storage, or other renewables) is accelerating, driven by energy security, cost competitiveness, and climate goals.
Solar-plus-storage projects offer reliable energy, reducing dependence on imports and enhancing grid stability.
Challenges include high upfront costs and operational risks, but they are increasingly cost-effective compared to fossil fuels.

2. Solar-Plus-Storage Projects

Value Stack Services: Projects provide energy shifting, commercial/residential use, ancillary grid services, and grid deferral benefits.
Ownership Models: Two main approaches exist: public turnkey contracts and independent power producer (IPP) models unlocking private investment.
Pricing Models: Two-part contracts (energy and capacity), single-capacity contracts, or blended energy contracts (e.g., time-differentiated rates).
Regional Potential: Sub-Saharan Africa and Small Island Developing States (SIDS) show high potential, with solar-plus-storage empowering energy independence and resilience.

3. Four-Phase Planning Framework

Phase 1: Overall system planning (least-cost analysis, grid flexibility studies).
Phase 2: Project definition (use cases, sizing, control requirements).
Phase 3: Business model selection (e.g., decision tree for dispatchability/firmness needs).
Phase 4: Term sheet and procurement (competitive auctions based on model).

4. Business Models

Two-Part Contract: Fixed energy and capacity payments; highly bankable, suited for regions with weak grids.
Single-Capacity Contract: Fixed payment for combined solar/storage capacity; ideal when buyer needs full control.
Blended Energy Contract: Remuneration based on MWh, possibly time-differentiated or 24/7 firm power; includes two primary variations.

5. Procurement

Competitive tenders ensure cost-effective solutions through transparent auctions.
Auction design must align with the business model (e.g., simultaneous bidding for two-part contracts).

6. Conclusion

Solar-plus-storage projects can drive energy transition, reduce costs, and de-risk investments.
Inclusive policies, clear risk allocation, and customized procurement strategies are essential for success.

Key Implications

Solar-plus-storage is a viable solution for energy-rich, fuel-dependent countries.
Tailored approaches based on local needs improve project viability and sustainability.

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