4. pv energy components & systems

Introduction & Market Place

4. Solar Energy PV Energy Components

& Systems

Moe Shahram, Physicist/EE President,

SolarBreeze Technology Inc.

BOS & Net Metering

Service Panel

Conduit & Raceways

It is a jungle out there

Structure & Mounting Issue •  Dead Load: self-weight or permanent load on a

structure, e.g. Roof structure, Bridges •  Live Load; People on the roof, cars on the bridge,

repair equipment/materials •  Wind Sheer: e.g. wind force on HVAC equip, on

Panels and structures •  Seasonal Load: Snow, Rain, Hail •  Vibration: HVAC motors, Fans, wind through Panel

structure •  Seismic forces •  Soil composition, landfills •  Floating Structures on water..!

Roof & Ground Mounts

Flat Roof Top

What we have covered so far •  Solar Energy Marketplace •  Fundamentals of Solar Energy •  Fundamentals of Solar Hot Water •  Fundamentals of PV •  Sales Basics •  Solar Energy Systems Components •  Next

– Utility companies programs, rates & schedules

Net Metering

Not Realy, AB 920

AB 920 NEM •  In 2009, the California Legislature passed and

Governor Schwarzenegger signed into law Assembly Bill (AB) 920, which changed the law that governs Net Energy Metering (NEM) for solar and small wind generators.

•  Before the change, the law said customers could not receive credit for electricity exported to the grid beyond their own annual usage.

•  As a result of AB 920, customers can receive compensation or a credit for net exports to the grid at the time of their annual true-up starting in 2011.

NEM Options If a customer generates more electricity during his or her 12-month true up period (that ends 2011 or thereafter) than it is supplied by the electric utility to the customer during the same 12-month period, the customer may elect to do one of the following:

(A) Receive compensation for any net surplus electricity generated during the 12-month period, or

(B) Apply the net surplus electricity as a credit for kilowatt-hours subsequently supplied by the electric utility to the surplus customer-generator, or

(C) Not participate.

NEM Compensation •  Direct & Carry-Over options:

– PG&E will provide additional information to help customers make a selection.

•  The compensation should be in place by your 2011 true-up.

•  For more info Check FAQ at: •  http://www.pge.com/myhome/saveenergymoney/solarenergy/nembilling/faq/