02.10.10

Path to Energy Savings & SolarExisting Residential and Small Commercial

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Goals of this WebinarProvide the tools and inform you of the steps you should take before and after installing solar to maximize your investment and reduce your carbon footprint.

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Agenda• PG&E

– Delivery Mix

– Integrated Approach

• The Full Energy Picture

• Before Going Solar– Energy Conservation

– Energy Efficiency

• Case Study

• Going Solar

• After Solar

• Resources

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PG&E’s Projected 2009 Electric Delivery Mix

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We’re committed to Energy Efficiency

PG&E has saved more than 155 million MWh and 12.5 billion therms from installed energy efficiency measures, which is the equivalent of powering over 23.5 million homes with electricity and heating 25 million homes with natural gas

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PG&E’s Integrated Approach

Reduce Energy

Use

Renewable Power Supply

NeutralizeEnergy

Use

Energy Efficiency

Solar &

Wind

Climate Smart

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1. Energy Conservation (No Cost)-Changing usage patterns to reduce energy consumption

2. Energy Efficiency (Low Cost)-Using less energy without changing patterns

3. Energy from Renewable’s (Investment)-Energy generated from natural resources (Solar, Wind, etc)

4. Carbon Offsets -Programs that allow individuals to reduce their impact on climate change

The Full Energy Picture: Loading Order

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Why Energy Efficiency Before Solar?

• Bigger “Bang for your Buck”– Less usage = smaller energy bills

– Cheap, easy, and less destructive to implement than other methods of energy

– Less usage smaller solar system needed lower cost

• Energy Audit Required to Participate in CSI Program– Educate yourself and your customers

• Analyze usage

• Learn what to do

• Contractor– Competitive advantage

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Before Solar

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Energy Audit: SmartEnergy ™ Analyzer

• Create a profile of your home and appliances

• Identify how much energy and money you can save

• Create a customized energy plan

www.pge.com/energyanalyzer

Take an Energy Efficiency Audit

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Step 1. Conservation Practices (No-Cost)

• Keep your thermostat at 68 degrees in the winter and 78 degrees in the summer (health permitting)

• Adjust thermostat up/down when you leave home or go to bed

• Lower your water heater’s thermostat to 120 degrees F

• Only run full dishwashers and loads of laundry

• Turn off the water when brushing teeth, washing dishes, etc.

• Take shorter showers

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Step 1 (con’t). Conservation Practices (Low Cost)

• Install faucet aerators, ultra-low flow toilets and showerheads

• Install irrigation controllers or, even better, drought-tolerant landscaping

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Step 2. Strive For High Efficiency (Low-Cost)

• Replace regular light bulbs with Compact Fluorescent Lamps (CFLs)– CFLs lasts up to 10 times longer and

use up to 75% less energy than regular bulbs

• Look for the PG&Esticker and save!

– Dispose of burned out bulbs properly by visiting Earth911.org to find a recycling facility

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Step 3. Strive For Higher Efficiency (Investment)

• Buy high efficiency appliances (i.e., clothes washers, dishwashers, water heaters)– These appliances use 10% to 50% less

energy than standard appliances

– Look for the ENERGY STAR®

• Weatherize your home– Insulate your attic and your walls

• We offer Rebates!

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• Residential

PG&E Offers a Variety of Rebates

•High-Efficiency Clothes Washers•ENERGY STAR®Dishwashers•ENERGY STAR® Room Air Conditioner•Electric Storage Water Heaters•Natural Gas Storage Water Heater•Attic and Wall Insulation

•Cool Roof – Low/Steep Slope•Whole House Fan •92% & 94% AFUE Central Natural Gas Furnace•Variable Speed Motor (VSM) Air Handler System•Variable and 2-Speed Swimming Pool Pump and Motor

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• Business– Agricultural Products

– Appliances and General Improvement

– Food Service

– Heating, Ventilation and Air Conditioning (HVAC)

– Lighting

– Refrigeration

– Boilers and Water Heating

– Business Computing

PG&E Offers a Variety of Rebates

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Case Study:How Does EE Effect Solar System Size and Cost?

• Lighting

• Air-Conditioning and Duct Sealing

• Refrigeration

• Phantom Loads

• Pool Pumps

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*RASS, PG&E, and DEER

841.2%Dish Washer1271.8%Clothes Washer1402.0%Microwave3014.3%Range Oven5197.4%TV5788.3%Computer71310.2%Clothes Dryer82411.8%Refrigerator85812.3%Misc.

127618.2%Central Air / Ventilation

157222.5%Interior/Exterior Lighting

Annual kWh for each device% of home electricityDevice

total kWh/year6,992

Typical Single Family California Home*

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Opportunities for Savings

kWh Savings by Measure

0

100

200

300

400

500

600

700

Lighting Air Conditioning/ventilation

Refrigerator Phantom Loads Duct Sealing

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840.7%Dish Washer1271.0%Clothes Washer1401.1%Microwave3012.5%Range Oven5194.2%TV5784.7%Computer7135.8%Clothes Dryer8246.7%Main Refrigerator9878.1%Miscellaneous

124510.2%2nd Refrigerator

180814.8%Interior/ Exterior Lighting

193115.8%Central Air / Ventilation

295924.2%Pool Pump

Annual kWh for each device% of home electricityDevice

total kWh/year12,216

Large Single Family California Home with Pool Pump

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Opportunities for Savings

kWh Savings per Measure (Large Home)

0

500

1000

1500

2000

2500

Pool Pump Refrigerator AirConditioning/

ventilation

Lighting Phantom Loads Duct Sealing

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Lighting

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Lighting: Effect on Solar

2.1 Panel Reduction (210 watt)

$91 = cost to implement measure

691 kWh/yr. saved = 433 Watt reduction on PV system size

($2,293) reduction in upfront PV system cost

Benefit/Cost Ratio 25 : 1

Replacing 60% of CFL applicable screw-base sockets in PG&E homes with CFLs

Large Home Lighting(kWh)

691

1117

EnergySavings

NewConsumption

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Air Conditioning & Duct Sealing

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2.1 Panel Reduction (210 watt)

$ 4,201 = cost to implement measure

708 kWh/yr. saved =293 Watt reduction on PV system size

($2,349) reduction in upfront PV system cost

Benefit to Cost ratio: 0.56 : 1

Other Intangible Benefits:•Peak load reduction •Smart A/C program

A/C and Duct Sealing: Effect on Solar

Upgrading A/C unit from SEER 10 to EnergyStar® (SEER 14.5) and sealing ducts to reduce leak from 19% to 12%

New 5 Ton A/C and Duct Sealing

708

1223

EnergySavingsNewConsumption

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Refrigerator Replacement

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$1,145 = cost to implement measure

864 kWh/yr. saved = 542 Watt reduction on PV system size

($2,867) reduction in upfront PV system cost

Benefit to Cost ratio 2.5 : 1

2.6 Panel (210 watt)

Refrigeration: Effect on Solar

Replacing an existing refrigerator with a new EnergyStar®unit

Main and 2nd Refrigerator(kWh)

864

1205 EnergySavings

NewConsumption

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Phantom Loads

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Phantom Loads

CEC – TV, Computers, and other entertainment make up 91% of plug loads, and 22% of that is attributed to Phantom Loads, aka Standby Power

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Conservation and Reducing Phantom Loads: Effect on Solar

$68 = cost to implement measure

300 kWh/yr. saved = 188 Watt reduction on PV system size

($996) reduction in upfront system cost

Benefit to Cost ratio: 11 : 1

0.9 Panel Reduction (210 watt)

230

1854

EnergySavingsNewConsumption

Home Electronic Consumption after EE (kWh)

Utilizing power strips and unplugging electronics/small appliances not in use

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Pool PumpReplacement

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Pool Pump: Effect on Solar

$1,457 = cost to implement measure

1736 kWh/yr. saved = 1,517 Watt reduction on PV size

($8,029) reduction in up front system cost

Benefit to Cost ratio: 5.5 : 1

Pool Pump (kWh)

2420

539

EnergySavingsNewConsumption

7.2 Panel Reduction (210 watt)

Replacing a single speed pump with a variable speed pump

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Case Study:Savings & Payback

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*RASS, PG&E, and DEER

841.6%Dish Washer1272.4%Clothes Washer1402.7%Microwave3012.7%Range Oven4697.2%TV5288.9%Computer71310%Clothes Dryer38113.5%Refrigerator75814.4%Misc.80915.3%

Central Air / Ventilation

97018.4%Interior/Exterior Lighting

Annual kWh for each device% of home electricityDevice

total kWh5,280

Typical Single Family California Home* After EE

1,712 kWh Saved (4,9013 kWh Saved with Large Home)

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PG&E Bill of Typical Customer

How EE and Solar Effect a Typical Customer's Bill

74106

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346

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Tier 1 ($.115) Tier 2 ($0.131) Tier 3 ($0.259)

kWh

Energy Eff iciency

Solar

Out of Pocket

Typical PG&E Home Savings:

143 kWh/mo.

$63.48/mo.

Avg. baseline allowance per day: 14Avg. billing days for month: 30

Avg. usage per month: 583 kWh

Rate Tiers Tier Usage (kWh) Charge/kWh Amount0 to 100% of Baseline ($0.115) 420.00 $0.11531 $48.43101 to 130% of Baseline($0.13) 126.00 $0.13109 $16.52131 to 200% of Baseline ($0.26) 37.00 $0.25974 $9.61

Total 583 $74.56

Average cost per kWh: $0.1279

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Typical PG&E Home: PV System Cost and Payback

Typical PG&E Home Total Upfront Savings: $5164.3 Panel Reduction

~ 21 years~ 25 years~ 13 years~ 23 years

$ 18,002*$ 13, 756$ 4,246$ 18,518*

Total Combined

Cost

Size and Cost of Solar After EE

(2.6 kW)

Cost of Implementing

EE

Size and Cost of Solar Before EE

(3.5 kW)

*($9/watt)-CSI Incentive

-30% Federal Tax

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PG&E Bill of Large Solar Customer

Avg. baseline allowance per day: 14Avg. billing days for month: 30

Avg. usage per month: 1018 kWh

Rate Tiers Tier Usage (kWh) Charge/kWh Amount0 to 100% of Baseline ($0.115) 420.00 $0.11531 $48.43101 to 130% of Baseline($0.13) 126.00 $0.13109 $16.52131 to 200% of Baseline ($0.26) 294.00 $0.25974 $76.36201 to 300% of Baseline 178.00 $0.37866 $67.40

Total 1018 $208.71

Average cost per kWh: $0.2050

Large Solar PG&E Home Savings:

409kWh/mo.

$193.74/mo.

How EE and Solar Effect a Large Home Customer's Bill

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231178

289

126

63

0

50

100

150

200

250

300

350

400

450

0 to 100% of Baseline($0.115)

101 to 130% ofBaseline($0.13)

131 to 200% ofBaseline ($0.26)

201 to 300% ofBaseline

kWh

Energy Eff iciency

Solar

Out of Pocket

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Large Solar PG&E Home: PV System Cost and Payback

Large Solar PG&E Home Total Upfront Savings: $8,88911.9 Panel Reduction

~ 10 years~ 22 years~4 years~ 15 years

$ 26,009*$ 19, 047$ 6,962$ 34,898*

Total Combined

Cost

Size and Cost of Solar After EE

(3.6 kW)

Cost of Implementing

EE

Size and Cost of Solar Before EE

(6.1 kW)

*($9/watt)-CSI Incentive

-30% Federal Tax

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Going Solar

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Go Solar• Do your research:

– Roof conditions

– Shading and direction of roof

– Obtain bids from a minimum of 3 contractors

– How much usage to be offset (size of system)

•

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Go Solar• Reduce Costs

– California Solar Initiative• 10 year program (2007-2017)

• Must be in Investor Owned Utility (IOU) territory

• Residential Retrofit, Non-Residential retrofit/new construction

– Federal Tax Credit• 30% of net cost

• Extended through 2016

– Net Energy Metering• Meter keeps track of debits/credits

• “Buy and sell” at the going rate

• Cannot make a profit

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After Solar

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E-6 Time PeriodsTime of Use

Maximize your Rate Schedule

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0

5

10

15

20

25

30

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24Hours of the Day

Cen

ts p

er K

wh

Buying low and selling high adds value.

Use Credit

Credit

Time of Use RatesTime of Use Rates

Maximize your Rate Schedule

Use Credit

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Continue Conservation and Energy Efficiency Practices

• Maximize your systems production

• Solar is not an excuse to neglect conservation and efficiency

• Environmentally friendly

• Consider your Carbon Footprint

• Regular maintenance on your system

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Reducing your Carbon Footprint: ClimateSmart

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Questions and Answers

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• Rebates: www.pge.com/rebates

• Residential: 1-800-933-9555 www.pge.com/myhome/saveenergymoney

• Commercial: 1-800-468-4743 www.pge.com/mybusiness/energysavingsrebates

• Large Commercial: Contact your assigned PG&E Account Manger or Representative

• Energy Savings Calculator http://www.pge.com/myhome/saveenergymoney/resources/appliancecalculator/index.shtml

• Energy Audit: www.pge.com/energyanalyzer

Energy Efficiency Resources

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Solar Resourses• Solar Customer Service Center: 1-877-743-4112

www.pge.com/solar

• California Solar Initiative: Solar@pge.comwww.pge.com/CSI

• Net Energy metering: Gen@pge.comwww.pge.com/NEM

• Solar Classes:www.pge.com/solareducation www.pge.com/solarclasses