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Transcript of Solar Photovoltaics for Small Farms - Purdue · PDF fileSolar Photovoltaics for Small Farms...

  • Solar Photovoltaicsfor Small Farms

    Presented by Andy McDonaldEarth Tools Sustainable Systems Programs

    Owenton, Kentucky

  • Does Indiana have good solar energy resources? YES!

    Germany leads the world leaders in solar energy generation & has solar resources similar to Alaska.

    Germany

  • Growth in Global Solar PV Capacity 2004 - 2014

    The installed cost of PV has fallen 70% since 2006.

  • Getting Started What are your needs, goals, and values? Where are your greatest costs? What strategies are needed? Conservation & Efficiency First! What resources are available?

    Natural resources on-site, knowledge, personal funds, support from utilities, govt programs, financial incentives, financing, contractor services

  • Solar Site Assessments

  • Solar Site Assessments

    Energy load analysis Review utility bills for past 12 - 24 months

    Site analysis study solar access Physical facilities condition of building

  • Solar Photovoltaic Systems

    1 - Grid-tied systems net-metering & feed-in-tariffs2 - Off-grid Battery-free systems3 - Off-grid Battery-based systems

  • Grid-tied Solar PV Systems

    Net Metering

  • Grid-tie PV Systems

    ~System sizing & Performance

    1.1 kW (kilowatt)

    12.2 kW (kilowatt)Earth Tools Inc.

  • Grid-tie PV Systems

    Project costs and economicsTypical installed costs:

    $3.00 - $4.00 per wattProject life: 40 + years

    Cost per kWh: $0.08 - $0.12/kWh(factored over first 25 years of operation)

  • Grid-tie PV Systems

    Financial Incentives- Federal Tax Credit = 30%

    - Available through 2022

    Indiana State & Utility-based incentivesSee www.dsireusa.org

    USDA REAP Grants & Loans25% grants

  • Grid-tie PV Systems

    System Components

  • Off-grid, battery-free PV systems

    -Water-pumping

    - Ventilation Fans

  • Off-grid, battery-based systems

    - System design & limitations- Energy budgeting- Lifestyle choices- Costs

    -Components- Batteries- Charge controllers- Inverters

  • Earth Tools Sustainable Systems Programs

    Contact: Andy [email protected]

    Thank you!

    Solar Photovoltaics for Small FarmsDoes Indiana have good solar energy resources? YES!Growth in Global Solar PV Capacity 2004 - 2014Getting StartedSolar Site Assessments Solar Site AssessmentsSolar Photovoltaic SystemsGrid-tied Solar PV SystemsGrid-tie PV SystemsGrid-tie PV SystemsGrid-tie PV SystemsGrid-tie PV SystemsOff-grid, battery-free PV systemsOff-grid, battery-based systemsSlide Number 15