Our installers can help you determine whether you need a new roof to support the solar system. While our installers do not offer roofing in-house, they do work with many trusted roofing contractors and can help you with referrals.

For more information about compatible roof types, visit our Products & Pricing page.

If your roof cannot support a solar system, both of our installers can install ground mount systems as well! These projects are still eligible for the discount but there may be additional fees for the type of labor involved (like trenching) for ground mount systems.

Yes, it is possible to install solar if you live in a condo or townhouse, but these projects can be challenging. Solar projects in condominiums and townhouses involve more than one stakeholder, so they are more complicated than installations on single ownership homes. However, if each of the units owners are interested in solar, installation may be possible. We recommend that you work with your Homeowner’s Association (HOA) in getting approvals and discuss the feasibility of installing solar on your home with the selected installers. Constraints like limited roof space, shared roof ownership and shared electric meter can make it logistically challenging to install solar. If installation is not possiblefor you at this time, we encourage you to look into different ways to harness clean energy such as opting up to 100% renewable energy or switching your appliances to all electric.

You may need to get your HOA's approval prior to installing solar, please consult the CC&Rs as each HOA is governed differently. A few things to know:

1. The Solar Rights Act (CA Civil Code 714) bars unreasonable restrictions by homeowners associations (HOAs) on the installation of solar-energy systems.
2. Whether the roof replacement is individualized or a shared cost could have an impact on the HOA approval process.
3. For townhomes, available roof space can be a challenge as most building & fire departments require setbacks to be able to walk around the solar system. More generally it is not advised to install solar if there is considerable shade nor is it advisable to install a solar system on the north-facing roof (unless the solar panels are titled to capture the southern sun).

Yes, our installers offer electric panel upgrades at an additional cost. However, not all installations require a panel upgrade! Talk to a contractor for more details. For more information about panel upgrades, see Rewiring America's article: Pros and Cons of Panel Upgrades.

No two projects are the same! Installation times depend on the weather and time of year, equipment availability, and complexities of the specific site (e.g. potential re-roofing, trenching if installing a ground mount system), but the average installation time is around 3 months. For a breakdown of the process, see the Solar Installation Process page.

Every project is dependent on your unique circumstances, including current and future energy usage, the amount of shade your roof has, electric panel size, type of EV, and more. We encourage you to sign up with SunShares and speak directly with an installer. Signing up for SunShares is free with no commitment or obligation on your part!

Keep the Lights On: The Role of Solar and Battery Storage Systems

In California, where wildfires and Public Safety Power Shutoffs (PSPS) have become increasingly common, maintaining a reliable power supply is more crucial than ever. While solar energy is a powerful tool for reducing reliance on traditional power sources, it has limitations—especially when it comes to power outages and nighttime energy needs. This is where battery storage systems come into play, offering a solution that ensures your home remains powered, regardless of external conditions.

The Limitations of Solar Power Alone

Solar power systems are incredibly efficient when the sun is shining, but their productivity is affected by several factors:

• Time of Day: Solar panels do not produce electricity after sunset.
• Weather Conditions: Cloud cover and shading from nearby structures can significantly reduce energy output.
• (Lack of) Energy Storage: Excess energy generated during peak sunlight hours is often wasted if there is no way to store it.

This variability means that without a battery storage system, your solar panels alone cannot provide a continuous power supply.

The Power of Battery Storage

Advancements in battery technology are revolutionizing the way we use solar power. Battery storage systems can store excess energy generated during sunny periods and provide power when sunlight is insufficient or during outages. Here’s how they work and why they are essential:

1. Energy Storage: Modern deep cycle batteries are designed to handle frequent and deep discharges, allowing you to tap into stored energy as needed.
2. Versatile Applications: Battery systems can power essential appliances during overcast days, at night, or during a grid outage.
3. Technological Advancements: The capacity of batteries continues to increase while costs decrease. This makes them a more accessible and efficient option for homeowners looking to enhance their solar power systems.
4. Grid Benefits: Beyond home use, battery storage systems play a significant role in stabilizing the power grid. They contribute to frequency regulation and reserve balancing, which are critical for maintaining a stable and reliable power supply. As renewable energy sources become more prevalent, batteries help manage the fluctuations in energy production, ensuring a steady flow of electricity.

Why Choose Solar and Battery Storage?

Combining solar power with battery storage offers several key benefits:

• Reliability: You can maintain power to your home during outages or when solar production is low.
• Energy Efficiency: Store excess energy generated during peak times and use it when needed, reducing waste and optimizing your energy use.
• Cost Savings: With the decreasing costs of battery technology, investing in a solar-plus-battery system can lead to long-term savings on your energy bills.

Your Path to Energy Independence

Investing in a solar power system with battery storage not only helps you combat the challenges of power outages but also positions you as a proactive participant in the transition to clean, renewable energy. With advancements in technology and a growing emphasis on sustainability, now is an great time to explore how solar plus batteries can keep the lights on and safeguard your home against unpredictable power disruptions.

1. Reduce Energy Bills

Solar panels can lower your monthly electricity bills by generating your own power. With a well-designed system, you can offset a substantial portion of your energy consumption, leading to considerable savings over time.

2. Increase Property Value

Homes equipped with solar energy systems can see an increase in property value. Potential buyers are attracted to the prospect of lower utility bills and a sustainable lifestyle, making your home more appealing on the market.

3. Environmental Benefits

Solar power is a clean, renewable energy source that reduces your carbon footprint. Switching to solar decreases your home’s greenhouse gas emissions.

4. Government Incentives and Tax Credits

Various federal, state, and local incentives are available to offset the cost of installing solar panels. These include tax credits, rebates, and grants, help make solar panels more affordable.

5. Low Maintenance Costs

Solar panels are durable and require minimal maintenance. Once installed, they have a long lifespan and typically only need occasional cleaning and inspections to ensure optimal performance.

6. Technological Advancements

Solar technology has advanced rapidly, leading to more efficient panels and systems at lower costs. Modern solar panels are more efficient and reliable, providing better performance and longer-term value.

7. Protection Against Rising Energy Costs

Solar energy can help shield you from fluctuating energy prices. By investing in solar, you lock in energy costs at a predictable rate and avoid the impact of rising utility rates.

8. Contribution to Energy Grid Stability

Distributed solar power helps to balance the energy grid, reducing the strain on central power plants and enhancing overall grid stability. This contributes to a more resilient and reliable energy infrastructure.

9. Positive Community Impact

By adopting solar energy, you support the growth of renewable energy in your community. Your choice encourages the development of green jobs and promotes environmental sustainability on a broader scale.

Choosing the right battery for a residential solar system involves several key factors to ensure you get the best performance and value. Here are several tips to help you select the ideal battery for your needs:

1. Understand Round Trip Efficiency

The roundtrip efficiency of a battery indicates how much of the stored electricity can be effectively used. For instance, if a battery has a roundtrip efficiency of 80%, and you input 5 kilowatt-hours (kWh) of electricity, you’ll only get 4 kWh of usable power. Higher efficiency means less energy is wasted during storage and retrieval, so prioritize batteries with higher round trip efficiency to maximize your energy use.

2. Assess Energy Capacity

Energy capacity refers to the total amount of energy a battery can store. It’s analogous to the volume of water in a tank. Consider your household's energy needs and choose a battery with adequate capacity to ensure you can power essential appliances and devices during outages or low sunlight periods. Calculate your daily energy consumption and select a battery that meets or exceeds that requirement.

3. Evaluate Power Rating

Power rating determines how quickly a battery can deliver stored energy. This is comparable to the diameter of a pipe—the larger the diameter, the more water can flow through at once. For batteries, a higher power rating means the battery can supply more energy at once. Choose a battery with a power rating that matches your peak power demands, ensuring it can handle the load when multiple devices are in use simultaneously.

4. Consider Battery Cycle Life

Battery cycle life refers to the number of times a battery can be fully charged and discharged before its capacity significantly degrades. Most batteries come with a warranty specifying the number of cycles they can handle while maintaining a certain percentage of usable energy capacity. Opt for batteries with a longer cycle life to ensure durability and sustained performance over time.

5. Review Warranty Terms

Warranties are crucial for understanding the long-term reliability of your battery. Check the warranty details for the number of cycles covered and the percentage of energy capacity guaranteed. A good warranty will provide peace of mind and protect your investment, ensuring that the battery performs well throughout its expected lifespan.

6. Compare Battery Types

Different battery technologies, such as lithium-ion, lead-acid, and saltwater, offer varying benefits. Lithium-ion batteries are popular for their high energy density, longer cycle life, and lower maintenance needs. Lead-acid batteries are often more affordable but may have shorter lifespans and higher maintenance requirements. Research the advantages and drawbacks of each type to find the best fit for your home and budget.

7. Evaluate Integration with Your Solar System

Ensure that the battery you choose is compatible with your existing solar setup or the one you plan to install. Some batteries are designed to work seamlessly with specific solar inverters or systems, while others may require additional equipment for integration. Check compatibility to avoid additional costs and complications.

8. Consider Future Expansion

If you anticipate increasing your energy needs or adding more solar panels in the future, choose a battery that can be easily expanded or scaled up. Some battery systems allow for modular expansion, meaning you can add more batteries as needed without a complete system overhaul.

9. Factor in Installation and Maintenance Costs

In addition to the cost of the battery itself, consider installation and maintenance expenses. Professional installation ensures optimal setup and performance, while routine maintenance can help prolong battery life. Factor these costs into your decision-making process to get a comprehensive view of the overall investment.

10. Review Manufacturer Reputation

Finally, research the reputation of the battery manufacturer. Look for reviews, ratings, and customer feedback to gauge the reliability and performance of their products. Choosing a reputable manufacturer with a history of quality and customer support can provide additional confidence in your battery choice.

Selecting the right solar quote for your home or business involves evaluating several key factors to ensure you get the best value and performance. Here’s a step-by-step guide to help you make an informed decision:

1. Compare Prices and Savings

• Upfront Costs: Review the initial costs of each solar proposal. This includes the cost of the solar panels, installation, and any additional services or equipment required.
• Estimated Savings: Analyze the projected savings on your electricity bills over the life of the system. A higher initial investment might lead to greater savings in the long run.
• Cost-per-Watt: Compare the cost-per-watt for each quote. This metric helps you understand the price you’re paying for each unit of power generated by the system.

2. Evaluate Panel Efficiency vs. Price

• Panel Efficiency: Solar panels vary in their efficiency, which is the percentage of sunlight converted into usable electricity. Higher-efficiency panels often come with a higher price tag but may be worth the cost if you have limited roof space or significant shading.
• Price Consideration: Balance the cost of higher-efficiency panels with your specific needs. If your roof receives ample sunlight and you have space, standard panels might suffice.

3. Assess System Size

• Energy Production: Different proposals might offer systems of varying sizes. Determine how much of your electricity consumption you want to cover with solar power.
• System Design: Ensure that the proposed system size aligns with your energy needs and the space available for installation.

4. Consider Add-Ons and Additional Work

• Home Preparation: Some quotes might include costs for making your home solar-ready, such as a new roof or an electric panel upgrade. These are essential for ensuring the longevity and efficiency of your solar system.
• Additional Services: Check if the quote includes any additional services, like roofing work or electrical upgrades. While these may increase the total cost, they can enhance your home’s value and system performance.

5. Compare Equipment Options

• Quality and Manufacturer: Review the equipment listed in each quote. Higher-quality panels and inverters typically come with better warranties and performance.
• Warranties: Ensure the equipment comes with sufficient warranties for both performance and product defects. This is crucial for long-term reliability and peace of mind.

6. Evaluate Financing Options

• Payment Methods: Determine whether you will pay cash upfront, finance the system with a loan, or opt for a solar lease. Each option has its benefits and impacts on your budget.
• Financing Terms: Compare the terms of different financing options, including interest rates, repayment periods, and any potential tax benefits. Make sure you read the financing options carefully.

7. Compare Local Installers

• Reputation: Choose an installer with a strong reputation and positive reviews. Look for local experience and a proven track record.
• Service and Support: Evaluate the level of customer service and support provided by the installer. A responsive and professional installer can make the process smoother and more efficient.
• Warranty and Support: Ensure the installer offers a solid warranty for both the installation and the system performance. This will safeguard your investment and ensure reliable operation.

By carefully evaluating these factors, you can select a solar quote that provides the best combination of quality, performance, and value for your specific needs. The California Public Utilities Commission (CPUC) also has created a helpful solar consumer guide available in 9 different languages.