Types of Solar Systems Photovoltaic System (PV) Commercial
Utility - Converts direct sunlight into electricity right in the panel - Used in residential, commercial and large scale power generation - Less expensive and less heat/conversion losses
Concentrated Solar Power (CSP) Utility - Sunlight is used to heat up salts in the main tower to 400 -500 degrees - Used in large scale power generation - Less expensive and More heat/conversion losses
Concentrated Solar Panel (CSP)
Photovoltaic System (PV)
Residential Solar Installation Grid Connected Systems Grid acts as a battery for excess energy generated Best option for markets with 80% or higher Grid Efficiency Pros: Inexpensive Cons: Grid goes down, PV goes down Off Grid Systems Needs batteries to store energy Pros: Supplies power at all times Cons: Expensive, requires sizeable space for batteries
Grid Connected System Panels
Inverter
Distribution Box
CEB/LECO
Net Meter
Grid Connected Solar Layout
Grid Connected Solar Layout
Grid Connected Solar Layout • Solar panels installed on the roof PANELS
• DC to AC inverter installed close to the panels INVERTER
NET METER
• Net meter replaces the existing meter • The new meter shows positive or negative depending on usage
Sun Light Hours In Sri Lanka - US department of international development - High sunlight resources for Sri Lanka
Product Line Solar Panels by REC Norwegian company with new manufacturing plant in Singapore 4th largest by market capitalization as of 30th June, 2012 Inverter by SMA American/German Company Biggest supplier for String inverters in the world 1.7 billion Euro in sales in 2011
REC Panels They produce from silicon to wafer to
solar panels – complete system Gradual degradation as opposed to high initial degradation Proven quality for the past decades
Product Line – SMA Inverter High Efficiency Option of 3 phase or single phase Comes with automatic power off switch if Grid shuts down
Online Monitoring
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