RePowering Humboldt · 2015-04-22 · Potential Long-term Benefits Scalable and replicable DG...
Transcript of RePowering Humboldt · 2015-04-22 · Potential Long-term Benefits Scalable and replicable DG...
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RePowering Humboldt with Community Scale Renewable Energy Mad River Valley Biomass Pilot Project
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CA Biomass Working Group Sacramento, CA | September 24, 2013
Matthew Marshall Executive Director, Redwood Coast Energy Authority
Background
Project goals
Systems design
Targeted outcomes
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Local Government
Joint Powers Agency
Established 2003
Mission:
1) Reduce energy demand
2) Increase energy efficiency
3) Advance the use of clean,
efficient, local renewable
resources.
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Our Current Electricity Picture
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RePowering Humboldt Background
“RePower Humboldt Strategic Plan”
Detailed technical analysis
Substantial public input
Key Findings include: Biomass can play a key role.
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Hourly Dispatch Model
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RePowering Humboldt Background
Business-as-usual
5% cost increase
15% cost
increase
Note: Bold and Peak scenarios both include substantial adoption of electric heat pumps and plug-in electric vehicles.
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Pursue a biomass energy strategy driven by restoration needs and priorities
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CA Energy Commission Grant
$1.75million CEC grant
$1.79million Matching funds
August 2013 – March 2015 timeline
RePowering Humboldt With Community-scale Renewables
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Project Overview
Goals
Implement, demonstrate and evaluate “Key Findings” from RePower strategic plan
Objectives
Demonstrate an innovative distributed generation biomass energy system
Demonstrate fuel switching technologies
Develop and implement pilot community-based energy upgrade program
to overcome market barriers
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Biomass/gasifier/fuel cell Combined Heat and Power (CHP) System
Install and operate a biomass gasifier that produces a syngas with ≥60%
hydrogen
Design, install, and operate a biomass gasifier/fuel cell CHP system that
has a peak output of 175 kWe, a capacity factor of >75%, and a
biomass-to-electricity efficiency of >25%
Evaluate performance, assess potential for replication, share results
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Tribal Office
Mad River
Casino & Hotel
Energy
Project Area
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Gasifier (~1100°C,
no oxygen)
Gas compression &
clean-up
Heat
Syngas
(60% H2) Pure H2
System Design
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System Design
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Why this system?
Conventional biomass boiler systems not efficient enough for this
application; electricity generation is most valued; CHP is useful, but
thermal energy is secondary in terms of value.
Identified biomass gasification and fuel cell system as preferred
alternative.
Gasifier is flexible in terms of feedstocks.
Fuel cells are more efficient in converting fuel to electrical power
(~40-50%) compared with gas gensets.
The gasifier/fuel cell system has lower air emissions.
The system generates pure hydrogen, which could be used to power
hydrogen vehicles or other hydrogen-based systems.
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Potential Long-term Benefits
Scalable and replicable DG Biomass system, with the
capacity to provide 1,400 MW of renewable DG in CA
Utilizing a local renewable energy resource to provide
baseload power, providing stability for the grid that is not
available with wind/solar generators
Using forest residues for energy production
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RePowering Humboldt Schedule, Key Milestones, & Deliverables
17 RePowering Humboldt
Gantt Chart -- RePowering Humboldt with Community Scale Renewable Energy
2013 2013 2013 2013 2013 2013 2013 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2015 2015 2015
Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
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Task
1.0 AdministrationKick-off Mtg
CPR Mtg
Biomass CHP System
2.1 Final System Design
2.2 Interconnection Agreement
2.3 Fuel Supply Contract
2.4 Equipment Procurement
2.5 Site and Facilities Work
2.6 System Installation
2.7 Start-up & Commissioning
2.8 Develop System Test Plan
2.9 Data Collection and Analysis
2.10 Project Evaluation
Year
Month
Month
Draft Report
Final Report
Final Mtg
CPR Report