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Includes Solar Panels + Tesla Powerwall 3 Home Backup
The market for home energy storage options like the Tesla Powerwall has taken off in recent years, and costs are falling quickly. Many homeowners and businesses are thinking about adding a battery backup to their solar panel system.
The benefits of a home battery can be big, especially if you have solar: you can use more solar energy onsite, or save it to use as backup power in the event that the grid goes down. If you have time-of-use (TOU) rates for your electricity or pay monthly demand charges, you can even save money by using power from your battery when rates are high.
Currently Available In Select Areas, By Qualification Only ow difficult is it to add a backup battery to your solar panel system?
The level of difficulty associated with adding a battery depends on whether your solar panel system was designed with the intention of adding energy storage later on.
If you install an AC coupled solution, you can keep your solar system’s existing inverter, which can save money up front. You can also be more flexible in terms of the size of your battery, relative to your solar panel system. However, choosing an AC coupled solution does result in some efficiency loss over time.
Most buildings use AC power, but your solar panel system produces electricity in direct current (DC) power. When your solar system’s inverter converts the DC power to useful AC power, there is a small amount of electricity that is lost in the conversion process. If you install an AC coupled battery backup system, there are additional conversion steps. As a result, AC coupled systems are less efficient than systems with a single inverter.
Some batteries, like the Tesla Powerwall 3, come with a built-in inverter that can be installed alongside your existing solar inverter. They also fall into the category of an AC coupled solution.
SDG&E customers are helping repair the grid, while they save money
The alternative to an AC coupled solution is to replace your existing solar inverter with one that works with your battery. String inverters need to be replaced every 10 years or so, so if you have a solar panel system that’s at least five years old, you may want to think about swapping your existing inverter for an all-in-one option like the Pika Energy Islanding inverter.
The primary benefit of a DC coupled solution is that your system will be more efficient – that is, it will lose less of the energy your solar panels produce during the conversion process. However, this option will be more expensive up front. Replacing your inverter to accommodate a battery can result in additional costs associated with system redesign and rewiring.
What solar batteries are compatible with your panels?
While there are some exceptions to the rule, most solar batteries designed for small-scale use are compatible with existing solar panel systems. The battery that you choose for your home or business depends on your reason for installing an energy storage system.
Most batteries cannot take your home fully off the grid to the point where you sever your connection with your utility – they simply don’t offer enough storage to power your home for days on end in the event of an extended bout of cloudy, rainy, or snowy weather. If you want to go off grid with solar, you’ll need much more storage capacity than a Tesla Powerwall or similar solar battery can provide.
If your utility has TOU rates or demand charges, and your goal is to reduce grid electricity consumption when rates are high, you can choose a battery like the Enphase storage system.
Every energy storage project is different. If you are interested in adding a backup battery to your existing solar panel system, make sure to share the specifics of your system, your electricity use, and your storage objectives with your installer to determine what kind of system is the best fit for your home.
How much does the installation labor cost for a backup battery?
Adding a battery to your solar panel system is a relatively simple process in terms of installation. You can think of installing a battery as more of an electrical project, rather a roofing project.
When your solar panel system was installed, the company brought in an installation crew to work on your roof. By comparison, batteries are installed on the ground, usually in a garage or similar structure. Fewer people are required to complete the installation, and the logistics of the project are simpler (your installer won’t have to climb up on the roof!). Both of these factors reduce installation costs.
Assuming that your solar panel system is in good working order and there are no major upgrades to be made, the labor cost to add a battery shouldn’t be more than a thousand dollars (this depends on the hourly cost of an electrician in your area). If you are also replacing your inverter as part of the installation, the job will take longer and cost more.
Who should you contact if your installer doesn’t install storage?
Energy storage is growing in popularity, but it still isn’t as common today as solar. Many, but not all, solar installers will install batteries. If you contact your installer and are told that they don’t offer energy storage, you have a few options:
- Ask your installer for a recommendation. Chances are good that you aren’t the first customer who has asked your installer about storage. They are the first place you should go to find out about other companies that offer storage options in your area.
- Seek referrals from friends, family, or neighbors. Referrals are one of the most common ways that property owners find an installer for a solar panel system. If you know anybody else who has installed solar (or even better, has installed a battery), ask them for their recommendation. Even if your installer doesn’t offer energy storage, somebody else’s installer will!
- Find an installer through battery manufacturers’ networks. If you know what type of solar battery you want, you can often go directly to the manufacturer and ask them to help you find an installer. Most battery manufacturers for home storage systems have their own network of installers that are trained to work with their equipment.
Battery Back-up Systems
We are experts in home battery systems and can bundle your solar, battery and roof replacement all in one package.
What incentives are available for installing solar batteries?
30% Solar Tax Credit
The Solar Investment Tax Credit is a dollar-for-dollar reduction in federal income tax for anyone who purchases solar panels for their home or business. The amount credited is equal to 30% of the purchase price of your solar system thru the end of 2033.
The ITC is a program meant to promote solar power and reduce the use of fossil fuels. It allows solar customers to get a dollar for dollar reduction of their taxes in the amount of 30% of the total cost of their solar installation. For example, if you purchase a $20,000 solar system, the government will pay for $6,000 of it by reducing what you owe in taxes. Might seem too good to be true, but it’s been in use for many years and nearly everyone qualifies. You just need enough tax liability to qualify, and you can either pay for your system with cash or finance it with our amazing 0.99% APR loan packages.
SGIP (Self-Generation Incentive Program)
The Self-Generation Incentive Program (SGIP) is a California Public Utilities Commission (CPUC) program that offers rebates for installing energy storage technology in your home. These storage technologies include battery storage systems that can function in the event of a power outage.
Most residential customers are eligible for a General Market SGIP rebate of
approximately $250/kilowatt-hour, which means
the rebate covers approximately 25 percent of the
cost of an average energy storage system.
30% Solar Tax Credit
You can get 30% off your solar system, your battery backup system, any electrical work needed to install the system and roof replacement costs when you do the work at the same time as your solar installation.
SGIP (Self-Generation Incentive Program)
The SGIP offers $250 for every kW of solar battery storage. This is typically enough to pay for roughly 25% of the cost of a typical energy storage system. Combined with the FITC, that’s over 50% savings on solar batteries!
January 2024 Residential Messaging from SDG&E®
TEN TIPS TO USE LESS NATURAL GAS AND SAVE ON YOUR ENERGY BILL
Reducing natural gas use at home may contribute to energy savings and it’s better for the environment. Check out these energy-saving tips to help you save on your bill during the cold weather.
- Block the chill: Caulk and weather-strip around drafty doors and windows. Use a door sweep, door sock or towel at the bottom of doors with a gap.
- Keep your furnace and air filters clean: Check furnace filters once a month and replace them regularly. A dirty air filter can increase your energy costs and cause problems with your equipment.
- Set your ceiling fan to run clockwise: This causes the fan to produce an updraft, forcing the hot air that rises to your ceiling down and into the rest of the room. In the summer, you can switch the fans to counterclockwise to keep the room cool.
- Schedule a no-cost gas appliances check with SDG&E: Book an appointment online at sdge.com/MyAccount or learn more at sdge.com/GasCheck.
- Lower your thermostat: Try lowering your thermostat a few degrees and throwing on a cozy sweater and socks or cuddling with your fur baby! You can also invest in a smart thermostat. Rebates are available at sdge.com/rebates.
- Lower your water heater thermostat: Lowering the thermostat on your water heater to 120°F, if possible, will save energy and avoid scalding. Find water heater rebates from $75 to $500 at sdge.com/rebates.
- Use the “energy saver” switch on your dishwasher: Set it on a low temperature setting when feasible. Also, think about turning off the heat drying cycle – you don’t need it! Only run full loads and turn the appliance off after the dishes are washed. And make sure to run it during off-peak hours before 4 p.m. or after 9 p.m.
- Keep your blinds and curtains open during the day and closed at night: During the day, let the sunlight and warmth in. When the sun goes down, close your blinds to keep the warm air in.
- Make sure your home is well-insulated: Without good home insulation, the hot air your natural gas heating system emits can escape through cracks, doors, windows, the attic and garage.
- Use water efficiently: Take shorter showers and wash clothes in cold water. Consider installing low-flow fixtures, insulating your hot water pipes and using a water heater timer.
Visit sdge.com/MyEnergy for more bill-saving and energy management resources.
NEED HELP WITH YOUR ENERGY BILL?
After the holidays can be a difficult time for many people financially. If you are having trouble paying your energy bill, you might be eligible for programs and services that can provide immediate financial assistance and help you avoid interruptions to your service. Flexible payment arrangements are also available to help you pay down past due balances. Learn more at sdge.com/Payment-Arrangements.
Check out these energy assistance programs:
- California Alternate Rates for Energy (CARE) Program: Save 30% or more every month on your bill. Find out if you qualify at sdge.com/CARE.
- Family Electric Rate Assistance (FERA) Program: If you don’t qualify for CARE and your household has 3 or more people, you may qualify for FERA. You could receive an 18% discount on your electric bill. Visit sdge.com/FERA to learn more.
- Energy Savings Assistance (ESA) Program: You may qualify to receive free energy-saving improvements for your home, like new appliances, lighting, insulation and more. Find details at sdge.com/ESA.
- Arrearage Management Plan (AMP): If you have outstanding bills and you are a CARE or FERA customer, you may be eligible for debt forgiveness. See if you qualify at sdge.com/AMP.
Even if you made a recent payment or set up a flexible payment plan with SDG&E, there may still be assistance programs available to help you. For a complete list of available offerings, visit sdge.com/assistance.
¿NECESITA AYUDA CON SU FACTURA DE ENERGÍA?
Usted puede calificar para un descuento en su factura o mejoras en el hogar. Hay programas de asistencia que pueden ayudar a reducir su factura mensual de energía mientras mantiene su hogar cómodo.
- Programa de Tarifas Alternativas de Energía de California (CARE, por sus siglas en inglés): Ahorre un 30% o más cada mes en su factura. Averigüe si califica en sdge.com/CAREesp.
- Tarifa Eléctrica Familiar (FERA, por sus siglas en inglés): Si no califica para CARE y su hogar tiene 3 o más personas, puede calificar para FERA. Podría recibir un 18% de descuento en su factura de electricidad. Visite sdge.com/FERAesp para obtener más información.
- Programa de Asistencia para el Ahorro de Energía (ESA, por sus siglas en inglés): Puede calificar para recibir mejoras gratuitas para el ahorro de energía en su hogar, tales como electrodomésticos nuevos, iluminación, aislamiento y más. Encuentre los detalles en sdge.com/ESAesp.
- Arrearage Management Plan (AMP): Si tiene facturas pendientes y es participante en el programa de CARE o FERA, puede ser elegible para la condonación de deudas. Averigüe si califica en sdge.com/AMPesp.
Las aplicaciones en línea son fáciles, rápidas y convenientes. Para obtener más información, visite sdge.com/asistencia.
SCHEDULE A FREE GAS APPLIANCES SAFETY CHECK THROUGH SDG&E
In the colder months, the use of natural gas appliances like water heaters, furnaces and ovens can go up. Schedule a free gas appliance check with SDG&E to make sure your appliances are working properly and efficiently to help keep gas bills lower. Getting your appliances inspected is a great way to help prevent carbon monoxide poisoning too.
One of SDG&E’s gas technicians will come to your home or business to inspect your natural gas appliances. There are several complimentary services:
- Light and inspect gas pilot lights. Make sure pilot lights and burner flames are a clear blue.
- Check that gas appliances are operating safely and efficiently and not emitting carbon monoxide.
- Ensure gas furnaces are working properly and inspect the condition of the filter which improves the furnace’s heating ability.
Visit sdge.com/GasCheck for details. You can schedule your appointment at sdge.com/MyAccount or on SDG&E’s mobile app. When in My Account, select “Services,” “Services Overview” then “Gas Appliances Check.” If you’re in the app, select the “More” tab. From “Services,“ select “Gas Appliances Check.” If you are an NEM customer, make sure to select your gas account before scheduling an appointment.
TAKE ADVANTAGE OF NO-COST TRAINING FROM ENERGY EXPERTS
Did you know that SDG&E provides webinars for business owners and trade professionals, so you can learn new skills at your own pace? And most are at no cost. You or your employees can learn about the latest in green building practices, technology and energy-saving solutions from industry experts. Certifications and continuing education units are available for many classes. Check out the class listing at sdge.com/EnergyClasses.
The Best Solar Battery Backup Systems
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SOLAR BATTERY STORAGE
50%+ OFF ENERGY STORAGE!
While having solar panels is a great way to break fear from the grip of utility companies – including the rising cost of electricity – solar battery storage takes it to the next level by filling in the gaps. When your solar panels aren’t producing energy, such as during the night or cloudy days, having a storage of solar energy means you can draw upon that first before having to draw from the grid.
In the long run, solar storage batteries help:
- Maximize your solar investment
- Make your entire home solar system much more self-sufficient
- Provide an added layer of back up in power outages
- With Time-of-Use rates continue to spike, especially for peak use hours likr the evening when you are home from work, having more control over your energy expenses is crucial.
- You can give yourself more flexibility and less dependence on the grid and local utility companies that are only concerned with making an extra buck.
If you are are interested in learning more about installing a solar battery to improve your energy storage and return on solar, reach out to SolarGuru Energy now. We can explain how SolarGuru Energy is designed to optimize your investment in a solar panel system, as well as your financial return.
SGIP (Self-Generation Incentive Program)
The Self-Generation Incentive Program (SGIP) is a California Public Utilities Commission (CPUC) program that offers rebates for installing energy storage technology in your home. These storage technologies include battery storage systems that can function in the event of a power outage
Am I eligible for SGIP rebates?
Any residential customer of Pacific Gas and Electric Company (PG&E), Southern California Edison (SCE), Southern California Gas Company
(SoCalGas), or San Diego Gas & Electric (SDG&E) is eligible for a General Market SGIP rebate of approximately $250/kilowatt-hour, which means the rebate covers approximately 25 percent of the cost of an average energy storage system. In addition to this General Market rebate, there are
two additional categories of higher SGIP rebates for residential customers: Equity and Equity Resiliency
What are the benefits of energy storage for your home?
• If you already have solar panels on your roof, you can store excess solar energy and use it when the sun is not out.
• Even if you do not have solar panels, this technology allows you to store energy from the electric grid and utilize that power in the event
of a power outage. Depending on the battery and how much you are using it, this could last several hours, or longer.
• Battery storage can be an important component of a more robust emergency preparedness plan in the event of a power outage.
Be InformeD
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