Renewable Energy with Energy Storage and Grid...
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8minutenergy Confidential Information March 21, 2014 Renewable Energy with Energy Storage and Grid Benefits Dr. Ali Chowdhury Vice President, Transmission 8minutenergy Renewables, LLC Folsom, CA 95630 IVEDC 7 th Annual Renewable Energy Summit March 12-14, 2014 Quechan Resort, Winterhaven, CA
Transcript of Renewable Energy with Energy Storage and Grid...
8minutenergy Confidential Information March 21, 2014
Renewable Energy
with Energy Storage
and Grid Benefits
Dr. Ali Chowdhury
Vice President, Transmission
8minutenergy Renewables, LLC
Folsom, CA 95630
IVEDC 7th Annual Renewable Energy Summit
March 12-14, 2014
Quechan Resort, Winterhaven, CA
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Outline
Introduction of 8minutenergy Renewables, LLC Issues with Renewable Integration with Grid Types of Storage Facilities Storage and Renewable Energy -Grid Reliability Impacts Conclusions
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8minutenergy Renewables Company Background
Focus Solar PV Ground-mounted projects (3+ MW)
Team One of the largest pre-construction development
teams for solar PV Over 50 person development team Over 20 in-house subject matter experts
Portfolio & Track Record 2,000+ MW in development 15,000+ acres of land, 50+% with CUP 1,000+ MW of interconnection agreements 375+ MW of PPAs signed since 2012 200 MW-ac Mount Signal Solar project is under
construction (partner owns as of Nov 2012)
8minutenergy team at groundbreaking for Mount Signal Solar project
Sunrise at Mount Signal Solar project (under construction)
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8minutenergy Renewables-developed Mount Signal Solar project is producing power ahead of schedule
Construction started in Nov 2012 First power produced in Jul 2013 150 MW scheduled by end of 2013
(ahead of schedule) Completion expected in Q1 2014 Developed by 8minutenergy, Silver
Ridge Power assumed ownership and is building the 200MW Mount Signal Solar Farm in Imperial Valley
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Issues with Renewable Integration In this presentation, only solar PV will be considered,
however, similar conclusions could be applied for other renewable technology types The main issue with grid integration at higher
penetration is: non-dispatchability Intermittency Flexible capacity requirements Ramping/Load following Frequency regulation Energy imbalance
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The Energy Production of a Solar Generator Follows the Local Solar Radiation. In Imperial Valley (Fixed Tilt)
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Example: Tracker Generator in Central Valley A Blue Sky Day.
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As the Number of PV Plants Increases, Their Normalized, Aggregate Output Becomes Smoother.
Source: NREL Technical Report 9/2013
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Storage Types
Source: EASE-European Association for Storage of Energy
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CAISO Duck Chart and Energy Storage Source: Clean Coalition
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What Storage Enables Renewable Energy
Storage can “smooth” the delivery of power generated from renewable technologies Energy storage reduces need for major new transmission grid
upgrades as well as augment the performance of existing T&D assets Storage enhances grid resilience and robustness by providing: Firm capacity Load leveling arbitrage Operating reserves Regulation Spinning reserve
Ramping/Load following T&D replacement/deferral Black start Others
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Conclusions
Environmental and economic benefits of offset
generation capacity
Firming of renewable energy to meet RPS mandate
Avoided T&D congestion relief from renewables
Avoided ramping/load following requirements for
base-load generators
Overall elimination/reduction in cost of ancillary
services
Cancelation or deferral of T&D infrastructures
