energy storage and solar: what does, and doesn’t, lie on the horizon
DESCRIPTION
Solar energy continues to blaze a path forward for renewables, and installations are rapidly expanding around the globe – at both the grid and distributed scales. This represents a major shift in the way we generate and consume electricity every day, and the increased penetration of renewables is creating new challenges. Both photovoltaic and solar thermal benefit immensely from the addition of energy storage technologies – allowing renewables to be dispatchable, on-demand resources. Energy storage technology is rapidly advancing as the solution to challenges created by intermittency and distributed generation. This webinar will focus on the role of energy storage on the grid, and how storage is able to augment the solar industry.TRANSCRIPT
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Energy Storage and Solar:
What Does, and Doesn’t, Lie on the Horizon
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ESA MEMBERS
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Redox Flow Batteries
Energy stored is decoupled from power delivery๏ system energy storage capacity independent from system power capacity
๏limited electrical & thermal hazard
๏high life cycle sustainability
๏configuration optimized to project
๏ normalized system cost curve matches the storage value curve
๏system scaling is less complex
๏commercially-available components
๏regional supply chain & factory assembly
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Services Storage Provides
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Electric Energy Time Shift(aka – ‘Peak Shifting’)
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Solution: Energy Storage for Peak Shaving
• Duration: variety of technologies operate wide range of
hours
• Frequency: field experience confirms 24/7/365
operation
• Permanence: dedicated grid assets to provide services
over long haul
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40 GW Peak Generation Needed in Next 15 Years
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Load Following and Ancillary Services
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Solution: Energy Storage as Flexible Resource
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Renewables and Storage
• Smooths power output, intermittency
• Storage systems prevent large local spikes from renewables
• Mitigates system level issues caused by high renewable penetration
• Goal is not necessarily to create 24/7 ‘on-demand’ solar – systems are scaled based on cost-benefit analysis
• Storage enables greater deployment, larger system size for renewables
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Policy Drivers
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Policy Brings Capitol Investment, Lower Cost
EquityProfits
Revenues Costs
e.g. Pay For Performance, additional competitive markets FERC/ISO’s
e.g. Investment Tax Credit, MLP’s, leveling the playing field Congress
DebtRisk
Revenue Certainty Technology Risk
e.g. PPAs, RFPs, IRP, TOU Rates States, FERC
e.g. Loan guarantees, ARPA-e, NY-BEST States, DOE, Congress
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Sample System with Incentives
• Hypothetical system installed in CA could take advantage of:• SGIP - $2/watt for ES• Fed Tax Credit – 30%• TOU Rates -
$500/kWh over system lifetime
• System could cost over $1400 per kWh, or $7000 for a 5 kWh system, and still breakeven
• When markets reward storage’s flexible, dynamic attributes, the entire grid benefits
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Where to Continue the Conversation?
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