An Introduction to Solar Electric and EV Charging Stations

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An Introduction to Solar Electric
and EV Charging Stations
Construction and Development Professional
Development Frederick County Career
Technology Center Friday, October 21, 2011

• Presented by Derek Coen.

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We are all Being Impacted by High Energy Costs.
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What has Been Done?
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Incentives are in place and Add Up

• Federal Tax Credit Tax credit covers 30 of
  system cost.
• District of Columbia Grants based on system
  size. Range from 1,500 to 16,500.
• Maryland Grants based on system size range from
  500 to 10,000.
• Montgomery County Property Tax Credit of
  5,000 of system cost.
• Howard County Property Tax Credit of 5,000 of
  system cost.
• Net-Metering All jurisdictions offer
  Net-Metering.
• Renewable Energy Credits (RECs) Provide
  additional incentives.
• Sales Tax Exemption Many jurisdictions offer
  sales tax exemptions.

Federal and local credits, grants and rebates add
up to make the case for going solar very
compelling.
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Other Initiatives Exist The Solar
America Initiative
The aim of the SAI is to achieve parity with grid
electricity by 2015.
By 2016, we expect solar energy to be the least
expensive source for consumers.
Rhone Resch, President SEIA
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Distributed Solar The Four Pillars
Incentives

• Support range of system types/sizes
• Large-scale, long-term programs
• Performance-based

Utility Rates Revenue Policies

• Solar-friendly rates
• Align peak retail with wholesale

Net Metering

• Up to 2MW
• Treat on-site power same as grid

Interconnection

• Simple rules
• Fair fees

Advocating cost-effective state policies and
programs. www.solaralliance.org
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How has Solar Electric Market Responded?
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U.S PV Installations Market Share
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2010 U.S. PV Installations
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Solar Economics and Prospects
A Summary of the Market

• The global PV market has grown over 30/year for
  the past 15 years.
• The U.S. solar market grew 67 in 2010 (3.6B to
  6.0B).
• Grid-tie installations grew 102 in 2010 (435 MW
  to 878 MW).
• Sixteen states installed more than 10 MW of PV
  (four in 2007).
• Over 100,000 Americans now work in the solar
  industry.
• U.S. manufacturing of modules grew 62 in 2010.
• Prices of solar panels have dropped to around
  2.00/Watt today.
• Tax credits, grants and loans are playing crucial
  roles.

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How Does Solar Energy Work?
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Solar Electric Power - The Basics
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How Much Sunlight is Required?
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What Direction are the Panels Pointed?
Solar will not work for every location.
Panels must be

• Facing south
• Angled to latitude
• In the sun

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What are the Configuration Options?

• Grid-tied
• Represents 90 of solar PV market.
• Takes advantage of Net-Metering option.
• Simple system modules, racks and inverter.
• Does not work when grid is down.

• Grid-tied with battery backup
• Provides power when grid is down.
• Is more expensive to design, install and
  maintain.
• Used where grid interruptions can last several
  days and a generator is not feasible.

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What are the Configuration Options?

• Direct power
• Ideal for remote locations that only need
  power during the day.
• Solar module(s) powers fan or water pump.
• No battery or controller needed.

• Off-grid
• More complex and expensive.
• Often used in remote off-grid areas.
• Or, where electricity is inconvenient.
• Batteries require regular maintenance.

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Grid-tied PV System
COMBINER BOX
AC DISCONNECT
ELECTRIC METER
PV ARRAY
DC DISCONNECT
INVERTER (Including GFPD)
ELECTRIC SERVICE PANEL
JUNCTION BOX
WEB-BASED MONITORING SYSTEM
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Grid-tied With Battery Back-up
COMBINER BOX
MONITORING and PROGRAM INTERFACE
PV ARRAY
AC LOAD CENTER
DC LOAD CENTER
CHARGE CONTROLLER
INVERTERS (Including GFPD)
ELECTRIC METER
AC SERVICE PANEL
DC SERVICE PANEL
48V BATTERY BANK
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Solar System Components

• Modules
• Mounting systems and hardware
• Combiner boxes and disconnect switches
• Inverter

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Solar Modules
Specifications (typical) Size 60 x 33 x
1.8 Weight 25 to 40 lbs Voltage 17 to 36
vdc Watts 175 to 230 Major Manufacturers
Evergreen Kyocera Mitsubishi Sharp Solar World
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Mounting Systems

• Pole mounts

Static Mount or Tracking Systems
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Combiner Boxes, Disconnects and Combination Boxes
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Inverters

• Converts DC power from solar panels to AC power
  for home use or Net-Metering uses.
• Grid-tied inverters must match the frequency of
  the power grid and are more expensive.
• Many inverters offer integrated combiner box and
  disconnect.
• Manufacturers Exeltech, Fronius, Kaco, Outback,
  SMA, Xantrex

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What are the Costs Incentives of Solar Energy?
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National Average System Prices, 2010
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Simplified System Costs with Incentives
Maryland
System Size Approx. Costs State Grant/Rebate Fed Tax Credit Total Incentive
3.0 kW 21,000 1,500 5,850 7,350 / 35

District of Columbia
3.0 kW 21,000 4,500 4,950 9,450 / 45

Virginia
3.0 kW 21,000 0.00 6,300 6,300 / 30

• ? Monthly electrical savings of 60 ? Renewable
  Energy Credits (RECs)
• ? Other credits could apply ? Interest on loans
  may be deductible
• ? Property value increases ? Provides hedge
  against rate increases

Solar electric systems in this size would save
75 tons of CO2 over 25 years.
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Construction and Development Professional
Development Frederick County Career
Technology Center Friday, October 21, 2011
Presented by Derek Coen
Slides Courtesy of Eaton Corporation
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Here come the EVs.. We hope!
Its not if its when
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Why are we here?
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EVs are a Growing Market

• Oil Prices are on the rise.
• Environmental concerns becoming prominent.
• Regulations are increasing.
• All major automakers are introducing EVs.
• Many utilities are proposing cheaper ToU rates.
• Tax Incentives
• EV or Hybrid up to 7,500
• Alternative Fuel Vehicle Refueling Property
• 30 up to 30,000 for businesses
• 30 up to 1,000 for residences

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Understanding Terminology
Hybrid Electric Vehicle
Plug-in Hybrid Electric Vehicle
Electric Vehicle
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How will I charge?

• AC Level 1 is already here, allowing someone to
  charge anywhere
• Convenient
• Cheap
• Slow
• DC Level 2 is needed to alleviate range anxiety
• Will be convenient
• Fast
• Expensive
• AC Level 2 appears to be the sweet spot
• Moderate charge rate
• Moderate cost
• Moderate convenience

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EVSE Recent Installations
Google Campus, Mountain View, CA
City of Raleigh, NC
City of Normal, IL
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EVSE Market Forecast 2011 - 2015
Source Pike Research
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IEC-Chesapeake Learning Opportunities

• An Introduction to Photovoltaics (20 hr class)
  NABCEP Exam offered
• PV Installer Certification (2 day course)
• PV Systems - Technical, Design and System
  Overview (2 to 4 hr lass)
• PV Systems - Business, Markets and Technology
  Overview (2 to 4 hr class)
• PV EV Products (1 to 4 hr classes)
• Solar Installation Lab (4 hour lab)

Visit IEC-Chesapeake.com for the latest schedule
IEC-Chesapeake is proud to be recognized
as a NABCEP approved training facility.
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EVSE Market Segments - 2015
Residential Linked to Automobile
Availability/Purchase. Auto OEMs Utilities
leading, Distribution to Follow Workplace
Investing now. Early channel via System
Integrators Public Investing Now. Early Channel
via Utilities, Municipalities, Institutions Privat
e Fleet Military- Linked to Automobile
Availability.
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Eaton Pow-R-Station Family
AC LEVEL 2
DC LEVEL 2 QUICK CHARGE
AC LEVEL 2 Resi
AC LEVEL 1
8 12 hours 120 VAC 12A Hard Wired or Plug-in
3 6 hours 240 208 VAC 30A - 70A Hard Wired
15 30 minutes 208 VAC / 500VDC 150A
162A Hard Wired
6 8 hours 240 VAC 16A 30A Hard Wired or
Plug-in
RESI
Garage
RESI
Garage
C- Store
Retail
RESI
Garage
Mixed Use
Curbside
Rest Stop
Highway
Retail
Custom
Work
Retail
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Pow-R-Station Value Added Peripherals

• Authentication Keypad, RFID, Key fob
• Payment Solutions Credit Card
• Parking Lot Management
• Metering Revenue grade or not
• Wireless Communication WiFI or Cellular
• Remote Monitoring Tools
• Increase System Uptime
• Reduce energy costs
• Maximize charger reliability
• Reporting Monitoring

Options available to meet client needs.
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Where can you learn more?
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Useful Websites

• www.dsireusa.org - Database of State Incentives
• www1.eere.energy.gov/solar/solar_america/about.htm
  l - Solar America Initiative
• www.renewable-energy-world.com - Solar News
  Industry Information
• www.solarbuzz.com - Solar News Industry
  Information
• www.solarenergy.com - Education Training
• www.irecusa.org - Interstate Renewable Energy
  Council Education Training
• www.nabcep.org - North American Board of
  Certified Energy Practitioners
• www.seia.org - Solar Energy Industry Association,
  Lobbying Education
• www.solarelectricpower.org - Solar Electric Power
  Association
• www.ases.org - American Solar Energy Society
• www.bge.com - Baltimore Gas Electric
• www.dom.com - Dominion Virginia Power
• www.pepco.com - PEPCO

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For further information contact IEC Chesapeake
or

• Derek Coen
• Atlantic Electric Supply Corp.
• Washington, DC
• 202-526-1300
• Gosolar_at_atlanticelectricsupply.com

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Thank You