advanced energy storage for load management 2008 rulemaking on load management standards efficiency...
TRANSCRIPT
Advanced Energy Storage Advanced Energy Storage for Load Managementfor Load Management
2008 Rulemaking on Load Management Standards2008 Rulemaking on Load Management StandardsEfficiency Committee WorkshopEfficiency Committee Workshop
March 3, 2008March 3, 2008Charles R. TocaCharles R. Toca
US&R Power Grid PartnersUS&R Power Grid Partners(949) 474-0511 x203(949) 474-0511 x203
[email protected]@utility-savings.com
www.Utility-Savings.comwww.Utility-Savings.com 22Energy Storage & Power Quality Solutions
VRB Power Systems Inc.
Advanced Advanced energy energy storage storage
systems are systems are now now
commercially commercially available available
www.electricitystorage.org
Load Management – Energy Application
www.Utility-Savings.comwww.Utility-Savings.com 33
CAISO OpinionCAISO Opinion Storage facilities can provide a number of benefits that will Storage facilities can provide a number of benefits that will
help with the integration of large amounts of renewable help with the integration of large amounts of renewable resources. resources.
Storage provides a mechanism for saving off-peak energy Storage provides a mechanism for saving off-peak energy production from wind generation and delivering the energy production from wind generation and delivering the energy during on-peak periods. during on-peak periods.
Some storage technologies can also provide Ancillary Services Some storage technologies can also provide Ancillary Services such as regulation and contingency reserves and reactive such as regulation and contingency reserves and reactive power for voltage support.power for voltage support.
The major barrier for construction of new storage facilities is The major barrier for construction of new storage facilities is not the technology but the absence of market mechanisms that not the technology but the absence of market mechanisms that recognize the value of the storage facilities and financially recognize the value of the storage facilities and financially compensate the owners for the services and benefits they can compensate the owners for the services and benefits they can provide.provide.
Integration of Renewable Resources – CAISO report Nov. 2007 231 pagesIntegration of Renewable Resources – CAISO report Nov. 2007 231 pageshttp://www.caiso.com/1ca5/1ca5a7a026270.pdfhttp://www.caiso.com/1ca5/1ca5a7a026270.pdf
www.Utility-Savings.comwww.Utility-Savings.com 44
6 MW VRB-ESS Tomamae Wind Farm, JapanGrid-Connected Wind Farm Output Smoothing
Energy Storage & Power Quality SolutionsVRB Power Systems Inc.
www.Utility-Savings.comwww.Utility-Savings.com 55
Santa Rita ‘Energy Center’ – Alameda County Santa Rita ‘Energy Center’ – Alameda County
Photos courtesy of CES
www.Utility-Savings.comwww.Utility-Savings.com 66
Case Study: Santa Rita Jail, Alameda CountyCase Study: Santa Rita Jail, Alameda County1 MW Battery Application with PV + Load Shift
(Cloudy Spring Day)
0
500
1000
1500
2000
2500
3000
0 3 6 9 12 15 18 21
Hour of Day
Ele
ctr
ic P
ow
er
(kW
)
Battery Charging (kW)
Battery OUT (kW)
Solar PV (kW)
Net PG&E Meter Load (kW)
150 kW control limit to prevent export to grid
Data and analysis courtesy Of Chevron Energy Solutions
The potential impact of AES to SRJ’s peak demand is dramatic
www.Utility-Savings.comwww.Utility-Savings.com 77
AES Benefits at Energy User SiteAES Benefits at Energy User Site
IncreasedIncreased demand response – demand response – withoutwithout interruption.interruption.
Permanent load shift.Permanent load shift.Uninterruptible power supply.Uninterruptible power supply.Emergency power – no emissions.Emergency power – no emissions.Local grid support – reactive power, Local grid support – reactive power,
voltage support, conditioning.voltage support, conditioning.Defer generation and transmission-Defer generation and transmission-
distribution expense.distribution expense.
www.Utility-Savings.comwww.Utility-Savings.com 88
RecommendationsRecommendations
Evaluate Advanced Energy Storage Evaluate Advanced Energy Storage Solutions for Load Management.Solutions for Load Management.
Avoid limited view of potential applications.Avoid limited view of potential applications.Explore and include a variety of AES Explore and include a variety of AES
technologies for diverse applications.technologies for diverse applications.Value multiple benefits of AES beyond Value multiple benefits of AES beyond
demand response/peak shaving.demand response/peak shaving.