Solar Thermal Community Action

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Solar Thermal Community Action
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Agenda
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Agenda
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Introduction Solar Thermal Basics CanSIA
Community Action Manual

• Content Purpose

• Available through CanSIA
• Electronic Copies can be freely distributed will
  be available at www.cansia.ca

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Introduction Solar Thermal Basics Uses of
Solar Thermal

• Residential
• DHW (Domestic Hot Water)
• ISP (Indoor Swimming Pool)
• OSP (Outdoor Swimming Pool)
• VAH (Ventilation Air Heating)

• Commercial
• CHW (Commercial Hot Water)
• ISP
• OSP
• VAH
• Water Purification
• Crop Drying
• Electricity Generation

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Introduction Solar Thermal Basics
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Introduction Solar Thermal Basics A Typical
Closed-Loop Glycol System

• Separate manufacturers systems will vary
• DHW is by far the best choice economically in
  Canada.

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Agenda
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Solar Thermal In Canada Installed Capacity

• Canada has a large installed capacity of Unglazed
  Flat-Plate collectors, for OSP heating
• 2004 Canadian installed capacity was 75MWth of
  generation, compared to 10-14MW of PV

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Solar Thermal In Canada Best choices
economically for ST Systems

• Residential
• DHW is the industry-accepted standard.
• Most common is the Glazed Flat-Plate collector
• These can be used both with water (drain-back) or
  with glycol (pressurized closed-loop)

Glazed Flat-Plate Collector
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Solar Thermal In Canada Best choices
economically for ST Systems

• Commercial
• There are two applications accepted as having the
  best economic returns CHW, and VAH

Unglazed Perforated Flat-Plate VAH System
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Agenda
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Solar Resource Assessment
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Solar Resource Assessment Site Assessment
General to ST PV

• Number of Considerations consistent with
  assessing a potential PV site
• Direction Angle to Sun
• Load Factor
• Age of Roof
• Potential Winter or Future Shadowing/Blocking
• Geographic Solar Radiation Supply

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Solar Resource Assessment Site Assessment Solar
Thermal Specific

• Structures plumbing and electrical state
• Plumbing Installation may require a Plumbing
  Contractors Licence
• Fairly relaxed regulations and requirements
• Toronto plumbing permits or certain structural
  permits are required for some commercial
  applications only

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Agenda
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Community Power Ownership Structure Community
Power

• Community Power
• A type of project ownership
• residents of a community with a similar goal pool
  their investment into a single or multiple
  renewable energy generation projects.

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Community Power Ownership Structure Ownership
Structure Two Models
Neighbourhood residents pool investment and
resources to achieve cost savings
INDIVIDUALS
Community Bulk Purchase Organization
Co-operative or Local Project Funding Mechanism
Result is either a number of individual
installations, or a single project funded by
pooled investment
Single, Remotely Sited Installation
PROJECTS
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Community Power Ownership Structure Ownership
Structure Co-operative Models
Model 1

• Local residents fund a project for a community
  centre
• Used for heating water for showering, laundry and
  ISP
• Heat energy metered, payment made to co-operative
  (system owners)

Solar Thermal System (installed on community
center, owned by co-op)
ENERGY
Community Center
PAYMENT
Co-operative (Community Residents)
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Community Power Ownership Structure Ownership
Structure Co-operative Models

• Remotely sited field used for district heating
• Each home is metered and payment is made to the
  co-operative
• Profits are returned to residents

Model 2
Solar Thermal Field (Sited remotely, owned by
residents)
ENERGY
PAYMENT
Community Residents (Co-operative Members)
Drake Landing, AB. District Heating Community
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Community Power Ownership Structure Ownership
Structure Co-operative Models
Model 3

• Primary Purpose operate under the StandardOffer
  Program
• Only oneorganizationattempting toform
  underthis modelSolarShare

Solar Thermal Field (remotely sited, owned by
co-op)
Provincial Government (through Standard Offer
Program)
ENERGY
Provincial Energy Grid
PAYMENT
ENERGY
PAYMENT
Co-operative (Community Residents)
Other Energy Consumers
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Agenda
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Cost of Solar Thermal Systems The Cost of an
Individual 4.2kWth System
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Cost of Solar Thermal Systems The Cost of 50
Identical Systems (210 kWth)
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Cost of Solar Thermal Systems The Cost of a
Remotely Sited 210kWth Field
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Installers the RFP/RFQ Process Installers

• List of CanSIArecognized installersand
  systemmanufacturers canbe found on the CanSIA
  website
• www.cansia.ca/directory

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Installers the RFP/RFQ Process RFP/RFQ Process

• Request for Proposal
• Request for a bid on a specific system
• Bids are legal offers
• Decision committee must select one
• Better price achieved from quantity discount

• Request for Quote
• Request for a bid for a specific application
• Bids are not legal offers
• Homeowners will select their own winning bid
• Greater flexibility to individual homeowners

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Agenda
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The Future of Solar Thermal Policy Two Methods
of Categorizing ST

• Conservation

• Generation

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The Future of Solar Thermal Policy Conservation
v. Generation

• Solar Thermal reduces the demand for energy
  Solar Thermal generates energy that directly
  replaces electricity

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The Future of Solar Thermal Policy The Policy of
Energy Conservation

• Conservation-based policy is almost always a
  subsidy (percentage of capital cost)
• New federal program ecoENERGY takes this approach
• Still trying to determine whether this is the
  best strategy how to administer eligibility
  requirements

• Advantages
• Subsidies reduce the capital cost obligation.
  Capital cost Intensity is commonly a barrier to
  acceptance

• Disadvantages
• Subsidies provide no lasting incentive to
  maintain the system in order to produce at peak
  capacity

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The Future of Solar Thermal Policy The Policy of
Energy Generation

• Generation-based policy is typically a Power
  Production Incentive (PPI)
• Ontario Standard Offer Program takes this
  approach
• Currently the SOP incorporates wind, bio-mass,
  small hydro and solar PV, but does not include
  Solar Thermal

• Advantages
• There is an incentive to ensure peak energy
  production, and to extend project life as long as
  possible

• Disadvantages
• There is no federally recognized metering
• Continued cost of project operation,
  administration, etc.

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Conclusion

• Solar Thermal industry is growing rapidly in
  Canada
• Need for a centralized information sharing
  network for communities
• CanSIA is developing a number of tools for Solar
  Thermal project organizers
• Keep posted on the NRCan website for Federal and
  Provincial funding updates, and the OPAs website
  for changes to the SOP

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Conclusion Question Comments