The Nuts and Bolts of Solar. June 13 th, 2015 San Mateo Public Library Oak Room 10 am An Educational Workshop On Solar And Energy Efficiency Faire

Transcription

1 The Nuts and Bolts of Solar June 13 th, 2015 San Mateo Public Library Oak Room 10 am An Educational Workshop On Solar And Energy Efficiency Faire

2 Today s Agenda Why Solar Why Now Understanding How Solar Works Net Metering The Solar Consultation Start with Usage Qualifications to Switch to Solar Your Solar Finance Options Choosing A Solar Company Energy Efficiency The Other Half Thomas Cottrell Senior Energy Consultant tcottrell@solarcity.com SolarCity Confidential Slide 2

3 Why Solar Why Now? SolarCity Confidential Slide 3

4 SolarCity Confidential Slide 4

5 The Keeling Curve SolarCity Confidential Slide 5

6 Co2 Emissions By Electricity Generation Type * Solar PV not listed because it has 0 emissions SolarCity Confidential Slide 6

7 Greenhouse Gas Inventory for San Mateo SolarCity Confidential Slide 7

8 Comparing Cost Stability of Utility Versus Solar Projected Retail Energy Costs Per kwhr PGE Financed Solar SolarCity Confidential Slide 8

9 PG&E relies on Hydroelectric Power to produce 13% to 25% of our energy needs Hydroelectric power provides almost one-fifth of the world's electricity. China, Canada, Brazil, the United States, and Russia were the five largest producers of hydropower in SolarCity Confidential Slide 9 (Source: National Geographic)

10 Water Used By Electricity Generation Type * Note: Solar PV not listed because it uses 0 water SolarCity Confidential Slide 10

11 SolarCity Confidential Slide 11

12 Effect of California Drought SolarCity Confidential Slide 12

13 How Solar Makes A Difference SolarCity Confidential Slide 13

14 Land Mass Required To Power The Entire U.S. SolarCity Confidential Slide 14

15 Solar The Almost Perfect Solution SolarCity Confidential Slide 15

16 Homeowner Electricity Demand Vs Solar SolarCity Confidential Slide 16

17 Business Electricity Demand Vs Solar Business Demand SolarCity Confidential Slide 17

18 Net Metering A Practical Solution SolarCity Confidential Slide 18

19 PGE Bill Net Metering Table For Solar - Running Total for 9 of 12 Months SolarCity Confidential Slide 19

20 PGE Solar Bill Showing Minimum Charge SolarCity Confidential Slide 20

21 Next Generation Net Metering - Batteries SolarCity Confidential Slide 21

22 The Future Is Already Here! SolarCity Confidential Slide 22

23 Getting Started The Energy Consultation

24 What s Your Goal for Solar and EE? Control future increases in energy costs? Reduce today s energy costs? Lower carbon footprint? Accommodate an Electric Vehicle Charging Station? Any combination of the above? SolarCity Confidential Slide 24

25 The Free 90 Minute Energy Consultation Perform walkthrough for quick audit of electric and gas equipment in home. Pull data from Utility and Review 1 Years Electric and Gas Usage Discuss and uncover why usage is what it is Discuss any low-hanging fruit electric opportunities and consider this when designing your solar system size. * For gas/heating/cooling, contact appropriate trades professional. Design System and Discuss Financing Options/Contract Terms SolarCity Confidential Slide 25

26 A Simple Energy Audit Note: The more efficient the home, the smaller the solar system required. SolarCity Confidential Slide 26

27 We Start With Your PGE Electric Use SolarCity Confidential Slide 27

28 What The Heck Is A Kilo-Watt-Hour (kwhr)? = 1000W bulb on for 1 Hour = Ten 100W bulbs on for 1 Hour = 100 LED bulbs on for 1 Hour SolarCity Confidential Slide 28

29 Your Rate Per kwhr Varies By amount used (Tier 1-5), season, time of day, Under the PUC overall Rates are adjusted 1-3 times a year by PGE You may have discounts for Medical or CARE rates SolarCity Confidential Slide 29

30 A Remodeling Story The Right Choices SolarCity Confidential Slide 30

31 The Ultimate Light -- and Heater! 18-60Watt Bulbs 18*60*4hrs*30Days = 129 kwhrs/month 129*.33= $42.57/mo 12.9 Kwhrs With LED s and 4 Less Solar Panels $1.93/month SolarCity Confidential Slide 31

32 Rule Of Thumb Sizing Your System 1 Panel = 360 kwhrs/year 10 Panels = 3600 kwhrs/yr 30 Panels = 11,000 kwhrs SolarCity Confidential Slide 32

33 Solar Consultant Creates Preliminary Design SolarCity Confidential Slide 33

34 Finance Options Will Be Reviewed SolarCity Confidential Slide 34

35 SolarCity Confidential Slide 35

36 Step 2 Site Survey Roof Type & Age Orientation Space Shading Support Main Panel Low Use kwhr Typical 2 out of 3 homes qualify SolarCity Confidential Slide 36

37 Conditions Which May Cause Contract Change Roof Condition needs partial or all new roof Roof Structure requires extra support in roof struts (attic) Shading greater shading than anticipated requires more panels Main Electrical Panel requires upsizing Trenching panels on separate building (detached garage) SolarCity Confidential Slide 37

38 Basic Solar Value Proposition SolarCity Confidential Slide 38

39 Design Plan Set SolarCity Confidential Slide 39

40 Installation Less than 1 Day SolarCity Confidential Slide 40

41 City Inspection and Utility Review SolarCity Confidential Slide 41

42 SolarCity Confidential Slide 42

43 Finance Options Larger Solar Companies have their own funds to finance your solar system LEASE, PPA, Purchase Loan and Cash. Small Solar Companies only offer Cash Purchase or they arrange financing through a 3 rd party. SolarCity Confidential Slide 43

44 Finance Options Evolving Rapidly Solar Company Owned You Own Lease Solar Company Financed Cash Power Purchase PPA FICO Credit Score depending Upon solar company Your Bank (Equity Line) Government Financing (i.e. PACE) PACE Property Assessed Clean Energy SolarCity Confidential Slide 44

45 Finance Options Evolving Rapidly Lease Solar Company Owned Protects Homeowner Against Rising Rates No upfront investment required The longer the term the greater the savings Savings from Day 1 Fixed Lease Payment Substitutes for UB. Payment is < old UB saving money. Usually 20 years extendable to 30 years Annual Escalator on payment 2-3% Can not purchase system Power Purchase PPA Variable payment based on solar production. Average payment < old UB saving money. Usually 20 years extendable to 30 years Annual Escalator on payment 2-3% May be able to purchase system after year 5 * Company applies for ITC but passes that along in lower payment to you SolarCity Confidential Slide 45

46 Case Study #1 Carew 4100 kwhrs $58/mo * $8900 Cash Purchase Price after ITC SolarCity Confidential Slide 46

47 Case Study #2 The Ash s 9000 kwhrs - $206/mo SolarCity Confidential Slide 47

48 Solar Lease Fixed Monthly Payment, 2.9%esc * 21,000 Cash Purchase Price After ITC SolarCity Confidential Slide 48

49 Things To Be Aware of On Leases/PPAs Leases and PPA s are inherently lower risk than cash purchases as solar company must service the system to continue to get paid monthly payments from homeowner. Solar Company gets the 30% ITC and generally passes it along to you in savings (3-4 cents per kwhr) on your price for power. Savings on Leases Versus PPA generally the same. Although 1 payment is fixed and 1 is variable they should average to about the same annual expenditure for electricity. On PPA you should only pay for power produced, not estimated. On Lease, check contract to see how contract handles under/over production. Smaller solar companies generally will not offer leases. They don t have the financing and can t commit to being in business for 30 years. SolarCity Confidential Slide 49

50 Finance Options Evolving Rapidly Question: Can you utilize the 30% ITC? If not, purchasing is usually a more expensive option than a Lease or PPA. You Purchase 30% ITC Low fixed interest <5%APR Up to 30 year paybacks No prepayment penalty No Liens on property Low interest Payback time flexible Lien on property Solar Company Financed Your Bank (Equity Line) Cash * Break-even 8-12 years. Covers solar, EE, water projects Homes, Bus, Comm Payment assessed on property tax bill No credit score requirement Lien on property Government Financing (i.e. PACE) PACE Property Assessed Clean Energy SolarCity Confidential Slide 50

51 Case # 1 - Cash Purchase and MyPower Loan SolarCity Confidential Slide 51

52 Case #2 Cash Purchase and Loan 6/17/ SolarCity Confidential Slide 52

53 Things To Be Aware of On Purchases Think Long Term Built to last 30 years! Of Highest Concern What is warranted, how long, (including inverter)? Will you monitor and guarantee the production? 19 years down the road who do I call for repairs and who pays? If you hear this system has a manufacturer s warranty of 25 yrs on the panels and 15 yrs on the inverter Reality Check Manufacturers of panels and inverters do not deal with the public. You have no warranty. Of Lowest Concern (if system is warranted for 30 years) Where are your panels made? Do you use micro-inverters? SolarCity Confidential Slide 53

54 Next Steps See If Your Home Qualifies Make appointment for a free 90 min Solar Consultation Thomas Cottrell Solar Energy Consultant /17/ SolarCity Confidential Slide 54