Types of Solar Systems Photovoltaic System

(PV)

Commercial

Utility

Concentrated Solar Power (CSP)

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

- 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

Net Meter CEB/LECO

Grid Connected Solar Layout

Grid Connected Solar Layout

Grid Connected Solar Layout

PANELS

• Solar panels installed on the roof

INVERTER

• DC to AC inverter installed close to the panels

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

Pictures Gallery