- Can I afford the upfront cost of a solar system?
- How much will the solar energy generated be worth?
- How much space is required for a solar system?
- Do the solar panels need to be mounted on my roof?
- Do the panels need to face south?
- How much power does the system produce?
- Do I need to install a new roof before the solar panels are installed?
- What happens if the panels are shaded?
- What are some of the choices I have to make?
Our office is working closely with lending institutions to create affordable solar loans. Using your CPS Energy rebate and the federal tax credit, you can have a reasonable size solar system on your home and end up with payments as low as $100 per month on a solar loan. The reduction in your energy bill will contribute substantially to making your loan payments. For more information on how to finance solar, please call us at 210-354-0236.
A typical residential solar system is 5 kilowatts and currently costs about $5.00 per installed
watt. This translates into approximately $25,000 for the average installed system, although this is an estimate and the true cost will vary based upon house size, age and energy needs.
CPS Energy will rebate about 33% of the total cost, and a federal tax credit of 30% is applied to the remaining balance. If the consumer applies both the rebate and the tax credit, payments could be less than $50 per month. Solar energy systems potentially increase the property’s long-term value while significantly reducing the owner’s monthly utility bill by using the natural energy of the sun. It’s never been a better time to take advantage of this affordable, renewable power source.
At today’s rates, your generated solar energy replaces energy purchased from CPS Energy for approximately $.097 per kilowatt hour. In the loan example above, a five kilowatt system will generate about 8086 kilowatt hours per year worth $817 or approximately $68 per month. In the loan example above, your net costs per month would range from approximately $9 per month to $47 per month. CPS rates will almost certainly go up in the years ahead. When those rates do go up, your solar generated electricity is more valuable and your net costs will be even less.
The space required for a solar electric or solar thermal systems will vary depending on your energy usage and needs. The installer will be able to customize a plan that is suitable for the space available.
Panels are often mounted on the roof, but can also be mounted on the ground if the space is available. Keep in mind, wherever the panels are located needs to be free of shade. Roof mount systems are most common in residential installations.
PV modules should be oriented geographically to maximize the amount of daily and seasonal solar energy that they receive. In general, the optimum orientation for a PV module in the northern hemisphere is true south. However, your modules can face up to 45º east or west of true south without significantly decreasing its performance.
Systems come in many sizes. The solar installer will review your current and average energy usage to design a system that will produce the correct amount of power to suit your needs.
If your roof is older and needs to be replaced in the near future, you will want to replace it at the time that the PV system is installed to avoid the cost of removing and reinstalling your PV system.
It is very important that your array is properly mounted to maximize output. Shade free panels will produce the most electricity. Partial shading of a panel will significantly reduce that panel’s output.
ROOF MOUNTED SOLAR PANELS
This system fits onto an existing roof and does not act as part of the building envelope. This type of mounting is often used when the system is installed after the building is completed. Roof mounted solar is the most popular for residential systems. It can also be mounted on a flat roof using a rack mount.
Ground mounts have been the mainstay for many years, especially for off grid systems. They are less popular with grid tied systems in cities due to theamount of land needed and lack of land that isnt shaded.
SOLAR ROOF TILES
The modules act as both solar panels and roof tiles. The innovative product design reduces installation costs because the conventional roofing shingles and solar
generating shingles are installed simultaneously by roofing contractors.