Photovoltaics
Agenda What is PV? System Types Mounting Options Product Options System cost & performance System sizing considerations Advantages of PV Challenges of PV Questions & Answers
What is PV? The Photovoltaic Effect
Basic PV System
Flat-Plate PV Systems The most common array design uses flat-plate PV modules
PV System Types Grid tie Off grid Stand-aloneHybrid
Grid Tie
Off Grid
Stand Alone
Hybrid system PV & Wind PV & Wind
Mounting Options Roof Mount Ground Mount Pole Mount Building Integrated
Roof Mount
Ground Mount
Pole Mount
PV Product Options Monocrystalline & Polycrystalline ShinglesTiles Thin Film
Polycrystalline / Monocrystalline
Shingles
Tiles
Thin Film
System sizing considerations –Electrical load requirement –Budget –Roof space / Land
Advantages of PV Reliable & Durable –25 years for PV panels –10 years for inverters Low maintenance cost Energy independence Utah is ideal for PV
Hedge against rising electricity rates Utilities across the U.S are raising power prices The price of coal has doubled since last year Natural gas prices are up nearly 50% More rate increases expected when federal legislation, anticipated by 2010, passes and forces coal-fired generators to pay fees to emit global-warming gases
The Challenges of PV Initial cost Energy storage Efficiency improvements Lack of general knowledge Power is still cheap in Utah
System Cost & Performance Average Cost for a 3kW system (At $8 per watt) $15,400 (After State & Fed tax credits) Estimated electricity generated per year 5,700 kWh (kilowatt-hours) (kilowatt-hours) Estimated yearly value of PV generated electricity $570 $.10/kWh)
Tax Credits State Tax Credit –25% (not to exceed $2,000) Federal Tax Credit –30% of the total system cost Including installation All solar equipment is exempt from sales tax
Questions & Answers