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					Integrating Renewables –
      A Utility Perspective
                 Jennifer S. Szaro
           OUC ~ The Reliable One
 OUC’s Renewable Energy Business
 Objectives
• Balance sustainability with affordability
  and reliability
• Provide a hedging strategy against
  potential regulatory requirements
  through the acquisition of renewable
  energy credits (RECs) and Carbon
  Offsets
• Leverage state and federal incentives
  offered to encourage the development
  of customer-sited assets
• Offer an option to customer requests for
  environmentally-friendly energy and
  water investments
• Pursue least-cost planning for future
  energy investments
Key Technologies
• Biomass Energy Technologies
   –   Gasification
   –   Co-Firing with Traditional Fuels
   –   Anaerobic Digestion
   –   Stand-Alone Biomass
       Generators
• Biomass Energy Resources
   –   Landfill Gas
   –   Municipal Solid Waste
   –   Biomass Residues
   –   Energy Crops (Including Algae)
• Solar Energy
   – Photovoltaics
   – Solar Hot Water
   – Concentrating Solar
Biomass for Electricity
• Benefits:
   – Can be co-fired
   – Can be used 24 hours/day
   – Carbon neutral fuel
   – Can be burned as solid or gas
     using conventional technologies
   – Relatively low cost if available
   – Creates local jobs

• Challenges:
   – Lower BTU value
   – Lower density/higher moisture
     content
   – Competing uses
   – Short-term vendor contracts
   – Uncertain availability
   – Handling challenges
Landfill Gas
• Benefits:
   –   Can be co-fired
   –   Can be used 24 hours/day
   –   Extremely low cost
   –   Carbon reduction benefits


• Challenges:
   – Lower BTU value
   – May need to be cleaned
   – Location specific
Solar (Electric and Thermal)
• Benefits:
   –   No fuel costs
   –   Carbon free
   –   Can be distributed near the user
   –   Thermal is low cost
   –   Creates local jobs

• Challenges:
   – Not dispatchable
   – Intermittent resource
   – PV is still expensive compared
     with conventional fuels
   – Minimal impact to winter peak
Summer Peak Day
1600
           STN A 06/22/2009
           STN #2 06/22/2009
1400
           STN #1 06/22/2009
           MP #3 06/22/2009
1200       IR CTD 06/22/2009
           IR CTC 06/22/2009
           IR CTA 06/22/2009    Natural Gas
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        Coal and Landfill Gas

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  Summer Peak Day with Renewables
1600
            Photovoltaics
            STN A 06/22/2009
                                PV Contribution
1400        STN #2 06/22/2009
            STN #1 06/22/2009
            MP #3 06/22/2009
1200        IR CTD 06/22/2009
            IR CTC 06/22/2009
            IR CTA 06/22/2009                 Biogas
1000                                        Opportunities

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        Opportunities
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  Winter Peak Day
1600
                                                                      STN A 01/11/2010
                                                                      STN #2 01/11/2010
                                                                      STN #1 01/11/2010
1400                                                                  MP #3 01/11/2010
                                                                      IR CTB 01/11/2010
                                                                      IR CTA 01/11/2010
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  Winter Peak Day with Renewables
1600
                                                                                     Photovoltaics
                                                                                     STN A 01/11/2010
                                            PV Contribution                          STN #2 01/11/2010
1400                                                                                 STN #1 01/11/2010
                                                                                     MP #3 01/11/2010
                                                                                     IR CTB 01/11/2010
1200                                                                                 IR CTA 01/11/2010



1000                                    Biogas
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            Opportunities
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A Balanced Approach
Orlando’s Green Future Alliance
• Received USDOE Solar Cities
  Grant to promote solar
• Established an integrated
  energy alliance with the City of
  Orlando and Orange County
  Government to promote green
  market transformation in
  Central Florida
• Conducting a series of energy
  training courses and
  stakeholder workshops to
  determine best practices and
  needs of our community
OUC’s Current Solar Projects
• 1-MW solar array on Convention
  Center
   – Partnership with OC, DOE and
     DEP
   – Largest PV array in the Southeast
     on a building
   – Provides electricity for 100 homes
• Solar on Schools Program
   – 5 existing sites
   – Partnership with Orlando Science
     Center to develop and deliver
     curriculum
   – PV system on Orlando Science
     Center
• Jetport Solar RFP
   – 10 MW located on OUC property
   – PPA with solar developer
   – Operational by late 2010
OUC’s Customer Solar Programs
• Solar Production Incentive
   – Provides incentives for
     producing energy from solar
     hot water and PV
   – Over 300 customer
     participants
• Solar Billed Solution
   – Provides no/low interest
     loans through the Orlando
     Federal Credit Union
     (OFCU)
OUC Customer Solar Production Incentives

 • $.03/KWH for all energy
   produced from solar thermal
   systems
 • $.05/KWH for all energy
   produced from solar PV
   systems
 • Requires customer contract
 • OUC now offers a $250
   credit to customers to
   compensate for the cost of
   the BTU meter installation.
OUC/OFCU Solar Loan Program
    Solar Thermal       Solar PV Systems
      Systems            (Up to $20,000)
    (Up to $7,500)
Term        Rate     Term         Rate

36 Months   0.00%    36 Months    2.00%

60 Months   2.75%    60 Months    4.00%

84 Months   4.00%    84 Months    4.75%

                     120 Months   5.50%
    Biomass Energy Projects
•   Landfill Methane Recovery Projects
     – Orange County Landfill displaces 3% of fuel
       required for either of Stanton’s coal units ~
       expanding to 22 MW
     – St. Cloud Landfill 1 MW project being planned
     – Holopaw Landfill Project recently approved (~ 15
       MW)

•   Harmony Hybrid Solar/Biomass Power Plant
     – 5 MW Plant will be located in Harmony’s Florida
       Sustainable Energy Research Park
     – Uses biomass gasifiers and concentrating solar
       to generate electricity
     – Includes educational partnership with FSU

•   City of Orlando MSW Gasification Project
     –   Could process up to 300 tons of waste daily
     –   City plans to release RFP this year
     –   OUC plans to purchase syngas from project
     –   To be located at Orange County landfill
On the Horizon…
New Solar Business Models

• Community Solar Farm                • Commercial Solar Aggregation
   – 500 KW to 1 MW depending on        Pilot
     customer participation              – OUC holds PPA with vendor
   – OUC holds PPA with vendor             and acts as billing agent
     and acts as billing agent           – No upfront cost to participate
   – No upfront cost to participate      – Fixed monthly rate for 20+
   – Fixed monthly rate for 20+            years
     years                               – Customer retains demand
   – Virtual net metering                  savings and any net metering
   – Allows for multi-family             – Sited on the customer’s rooftop
     participants                        – Price reductions from project
   – Removes siting barriers               aggregation
   – OUC owns RECs                       – OUC owns RECs
New Biomass Opportunities

• Algae Biomass Project              • Biomass Co-Firing
   – Opportunities to use algae to      – Possibly up to 10% of boiler
     treat wastewater                     capacity
   – Fed CO2 from post-                 – Ship biomass feedstock via
     scrubbed flue gas                    rail cars from longer
   – Algae is “cracked” to obtain         distances
     biofuels and biomass               – Consider torrefaction to
     feedstock for co-firing.             improve BTU content and
                                          moisture content
CONTACT INFORMATION
     Jennifer Szaro
    jszaro@ouc.com
(407) 423 – 9100 Ext. 2086

				
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