Spartacus
Freshman Member
- Joined
- Jan 4, 2011
- Professional Status
- General Public
- State
- California
Hello All!!
I am in Solar Sales and Installation. I found your forum while looking for information on appraisals of solar homes. I was surprised to find that some of the information was not entirely factual. I thought I would add a bit of information about solar and see if there was any general consensus about how homes might be appraised or if it changed anyone's mind or opinion.
I should say up front that I am in and do business in California (Los Angeles to be specific) which is has some of the highest electricity prices in the nation. Some of the information about electricity and pricing could vary for other states but the information about panels and warranties are standard.
There are 2 types of solar connection, on grid and off grid. On grid systems make up the vast majority of residential and business arrays. On grid systems do not incorporate batteries and are interconnected to the local electric company and can accept electricity from the solar array as well as supply energy to the house from the electric company. The amount of energy an array produces is taken away from the amount of energy the house uses over the billing cycle . If the house used less than was produced by the array the energy credits are rolled over to the next month which will help off set the energy used in the next month in case the house uses more than the array produces. This happens through out the entire year. As of 2011 if at the end of the year there is still a credit on the account the electric company will pay the homeowner the value of the Credit in cash (check) or the homeowner can elect to continue rolling that credit over into the next year.
The only service an on-grid system uses is to be washed off once or twice per year. There are no moving parts and they do not wear easily. Solar panels are GUARANTED to put out at least 90% of their rated levels through the first 10 years and 80% of their power through 25 years. The panels are estimated to last up to 50 years but loose power every year. Most single inverters are guaranteed for 10 years and micro inverters are guaranteed for 15 ( but they are rated for 25 years and are considering extending the warranty up to 25 to reflect the panel guarantee).
Solar panels can take basically any weather conditions. They are rated for 125 mph winds and can take golf ball size hail. A lightning strike would do damage, but not much else. A panel array protects the roof below it because it protects it from sunlight. When the roof needs to be replaced, the panels them selves can be lifted so the roof can be worked on below it (the entire system does not need to be removed to replace the roof).
Taking a solar system off the roof and moving it is like saying you like your granite counter tops and want to take them with you. It can be done, but not easily. A solar system must be installed by a licensed electrician (unless it is owner installed) and is imbedded in the house and electrical panel (this is especially true for houses with Tile roofing).
Electricity prices have been increasing at a rate of 6.5% per year for the last 30 years. DWP announced they expected to increase prices 8% per year for the next 5 years then between 5 and 7% per year after that (due to the new climate control regulations here in Cali) and SCE is expected to follow. A residential bill that is currently at $218.00 per month (11,782kWh/yr) I can install for roughly $20k after rebates (given the optimal conditions) and ensure the client has a $0 bill (possibly even a check back from the electric company). Over the course of 25 years assuming an average increase of 5% instead of the numbers stated above (just to be conservative) the home owner would avoid $149,446 (yes, this takes into account the degradation of the panels and the inverter replacement at 15 years (just to be conservative). If a homeowner includes the price of the system in their 30 year loan at 5% interest rate it would equate to approximately $114 per month. This means an immediate savings of $104 per month for the homeowner without ever having a price increase in electricity again (given that they don’t increase their usage).
Please y’all … given that all this information is correct, why shouldn’t the appraisal come out higher than a home without solar?
BTW … I believe the new California law states that all new homes sold must include solar as an option for the buyer so we should start seeing more comps. In addition, studies have shown that when a builder gives the option of solar, the homes sell faster and for more money.
I look forward to your responses and am happy to answer any questions.
I am in Solar Sales and Installation. I found your forum while looking for information on appraisals of solar homes. I was surprised to find that some of the information was not entirely factual. I thought I would add a bit of information about solar and see if there was any general consensus about how homes might be appraised or if it changed anyone's mind or opinion.
I should say up front that I am in and do business in California (Los Angeles to be specific) which is has some of the highest electricity prices in the nation. Some of the information about electricity and pricing could vary for other states but the information about panels and warranties are standard.
There are 2 types of solar connection, on grid and off grid. On grid systems make up the vast majority of residential and business arrays. On grid systems do not incorporate batteries and are interconnected to the local electric company and can accept electricity from the solar array as well as supply energy to the house from the electric company. The amount of energy an array produces is taken away from the amount of energy the house uses over the billing cycle . If the house used less than was produced by the array the energy credits are rolled over to the next month which will help off set the energy used in the next month in case the house uses more than the array produces. This happens through out the entire year. As of 2011 if at the end of the year there is still a credit on the account the electric company will pay the homeowner the value of the Credit in cash (check) or the homeowner can elect to continue rolling that credit over into the next year.
The only service an on-grid system uses is to be washed off once or twice per year. There are no moving parts and they do not wear easily. Solar panels are GUARANTED to put out at least 90% of their rated levels through the first 10 years and 80% of their power through 25 years. The panels are estimated to last up to 50 years but loose power every year. Most single inverters are guaranteed for 10 years and micro inverters are guaranteed for 15 ( but they are rated for 25 years and are considering extending the warranty up to 25 to reflect the panel guarantee).
Solar panels can take basically any weather conditions. They are rated for 125 mph winds and can take golf ball size hail. A lightning strike would do damage, but not much else. A panel array protects the roof below it because it protects it from sunlight. When the roof needs to be replaced, the panels them selves can be lifted so the roof can be worked on below it (the entire system does not need to be removed to replace the roof).
Taking a solar system off the roof and moving it is like saying you like your granite counter tops and want to take them with you. It can be done, but not easily. A solar system must be installed by a licensed electrician (unless it is owner installed) and is imbedded in the house and electrical panel (this is especially true for houses with Tile roofing).
Electricity prices have been increasing at a rate of 6.5% per year for the last 30 years. DWP announced they expected to increase prices 8% per year for the next 5 years then between 5 and 7% per year after that (due to the new climate control regulations here in Cali) and SCE is expected to follow. A residential bill that is currently at $218.00 per month (11,782kWh/yr) I can install for roughly $20k after rebates (given the optimal conditions) and ensure the client has a $0 bill (possibly even a check back from the electric company). Over the course of 25 years assuming an average increase of 5% instead of the numbers stated above (just to be conservative) the home owner would avoid $149,446 (yes, this takes into account the degradation of the panels and the inverter replacement at 15 years (just to be conservative). If a homeowner includes the price of the system in their 30 year loan at 5% interest rate it would equate to approximately $114 per month. This means an immediate savings of $104 per month for the homeowner without ever having a price increase in electricity again (given that they don’t increase their usage).
Please y’all … given that all this information is correct, why shouldn’t the appraisal come out higher than a home without solar?
BTW … I believe the new California law states that all new homes sold must include solar as an option for the buyer so we should start seeing more comps. In addition, studies have shown that when a builder gives the option of solar, the homes sell faster and for more money.
I look forward to your responses and am happy to answer any questions.