Transcript Document

By Dale A Gulden,
Solar Direct CEO
Solar Electric – Basic Components
1. Modules – solar electric collectors. 3 basic types in the marketplace:
Mono crystalline, poly crystalline, thin film
2. Array – modules connected together into a system
3. Inverter – converts the DC power produced by the modules to A/C
4. Grid Tie Inverter – converts DC to AC and feeds the utility grid
with the A/C power
5. Charge Controller – regulates the power going to the batteries
6. Batteries – stores DC power
Solar Electric – Types of Systems
Each type has very specific capabilities and limitations
All PV systems consist of one or more modules which produce DC power. It
is what is done with this power after it is produced that determines the type of
system.
Stand Alone – Off grid
Modules, charge controller, batteries, and may or may not have an inverter
which converts DC power to A/c power
Grid Tie – Grid connected
Modules, and inverter connected to the power grid
Hybrid – Grid connected with batteries
Modules, grid-tie inverter, and batteries for storage when the grid is
unavailable
Systems can be installed on roofs, ground racks, pole mounts, or on racks which track
the sun.
Stand Alone – Off Grid Systems
Stand-alone PV systems are designed to operate
independent of the electric utility grid, and are generally
designed and sized to supply certain DC and/or AC
electrical loads.
 Common applications are direct power to DC loads,
water pumping and telecommunications.
 With an inverter it can also power AC loads
 For systems with no battery the energy is used
immediately; only works when it's sunny
Systems with Battery Backup can supply power 100% of the time:
At night, on cloudy days and when the utility power is down
Stand Alone – Off Grid Installation
Stand Alone – Off Grid System Components
Grid Tie – Grid Connected Systems
Grid Tie System is the simplest and
most cost effective way to connect PV
modules to regular utility power.
Grid-Connected systems can supply
solar power to your home and use utility
power as a backup.
As long as there is enough electricity
flowing in from your PV system, no
electricity will flow in from the utility
company.
If your system is generating more
power than you are using, the excess
will flow back into the grid, turning your
meter backwards.
Grid Tie – Grid Connected - Rack Installations
Grid Tie – Grid Connected - Roof Installations
Grid Tie – Grid Connected System Components
Hybrid– Grid Connected with Batteries
If utility power is reliable and well
maintained in your area, and energy
storage is not a priority, you don't
necessarily need a battery. But if the
utility power goes down, even if there
is solar, the PV system will be off for
the safety of the utility workers.
Systems with Battery can
supply power 100% of the time.
Hybrid– Grid Connected with Batteries - Roof Installation
Hybrid– Grid Connected with Batteries - Rack Installation
Hybrid – Grid Connected with Batteries - Components
Consulting, Design and Installation
Solar Electric System
11.5 kW grid-connected
Solar Water Heater
PT50 connected to 2
Tank-less natural gas
heaters
Solar Direct provided Consulting, Design
& Installation of Solar Systems for new
home construction.
Solar Pool Heater
13 Vortex panel solar
automated pool system
Solar Energy Financial
Incentives for Floridians
Photovoltaics - Residential
• Federal Tax Credit of 30% of installed system
cost through 2016
• Florida Solar Rebate Program ($4/Watt up to
$20,000)
• Florida Sales and Property Tax Exemption
• Utility Company Rebates
• Net Metering
Photovoltaics - Business
• Federal Investment Tax Credit of 30% of
installed system cost (available as a grant for
tax years 2009 and 2010) through 2016
• Florida Solar Rebate Program ($4/Watt, up to
$100,000)
• Florida Sales Tax Exemption
• Utility Company Rebates
• Net-Metering (up to 2 MW)
Net Metering
With Net Metering you can benefit from laws and regulations
that require "net" electric meter reading.
How it Works:
The customer is billed for the net electricity purchased from
the utility over the entire billing period—that is, the difference
between the electricity coming from the power grid and the
electricity generated by the PV system.
Through net metering, the customer obtains the full retail
electricity rate—rather than the much lower wholesale rate—
for kilowatt-hours of PV- produced electricity sent to the utility
power grid.
Utility Incentives
• City of Tallahassee: $450 SWH Rebate (residential)
• GRU
o
o
Residential: $500 SWH Rebate; $1.50/Watt PV Rebate ($7,500 cap)
Business: $500 SWH Rebate; Feed in Tariff for PV
• Gulf Power: $1,000 SWH Rebate (residential, one year pilot)
• JEA
o
o
o
Residential: $400-$800 SWH Rebate
Business: 15% ($2,500 cap) or 30% ($5,000 cap) SWH Rebate
Local vendor garners larger rebate
Utility Incentives
• OUC
o
o
o
o
Production credit: $.03/kWh equivalent for SWH
Production credit: $.05/kWh for PV
Available for residential and business customers
Low interest loans available for residential customers
• Progress Energy: $450 SWH Rebate (residential, with load
management control and load management credit)
• Clay Electric: $.01/Btu SWH Rebate (residential)
• Orange County: Residents who receive power from OUC and
Progress Energy can receive a $200 incentive for the installation of
a solar water heater
Do You Have
Any Questions?
www.solardirect.com
800-333-9276