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Frequently Asked Questions
General FAQ
Why should you consider purchasing solar panels?
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Investing in solar panels offers several advantages. Firstly, they enable significant savings on your energy bills for both residential and commercial properties. Additionally, solar panels serve as an eco-friendly alternative to traditional generators, boasting benefits such as silent operation, absence of unpleasant odors, and freedom from the need for fuel.
How many solar panels are required to meet your energy needs?
Investing in solar panels offers several advantages. Firstly, they enable significant savings on your energy bills for both residential and commercial properties. Additionally, solar panels serve as an eco-friendly alternative to traditional generators, boasting benefits such as silent operation, absence of unpleasant odors, and freedom from the need for fuel.
What is the approximate cost of an average solar power system?
The cost of a photovoltaic (PV) system can vary based on several factors, including its configuration; size, the quality of equipment used, and labor costs. On average, you can expect an ordinary PV system to have an approximate price tag of $10,000 before factoring in installation expenses and potential incentives.
Is constant sunshine a prerequisite for the optimal functioning of my solar panels?
No, it is not essential to have uninterrupted sunshine for your solar panels to generate power. Solar panels can still generate electricity on overcast days or when they are not exposed to direct sunlight, albeit at a reduced efficiency.
What level of efficiency can I expect from my solar panels on a cloudy day?
The efficiency of your solar panels on a cloudy day is contingent on the amount of sunlight they receive. On average, solar panels’ power output may decrease by approximately 20-40% under cloudy conditions.
Should I be concerned about snow accumulation on my solar panels?
You need not worry about snow accumulating on your solar panels, as they are designed to endure heavy snow loads. Typically, the snow naturally slides off the panels as they heat up and begin operation, eliminating the need for manual snow removal.
How long can I expect my solar panels to last?
Solar panels typically have an average lifespan of 25-30 years. However, even after this period, they will continue to generate electricity, albeit at a slightly reduced rate.
What kind of warranties are provided with solar panels?
Solar panels come with two types of warranties: performance warranties and product warranties. Product warranties typically range from 10 to 30 years. It is important to note that for warranty support, you will need to contact the manufacturer. Further details can be found in the Warranty Support and Return Policy section.
Is going solar worth it?
How can a solar system become a profitable investment?
You can achieve financial benefits by reducing your reliance on purchased electricity from your utility provider, opting to use the energy generated by your solar system instead. Additionally, surplus solar energy can be fed back into the grid, causing your electric meter to run in reverse and potentially earn you credits.
Will my solar system eventually yield a return on investment?
Certainly, a solar system in the United States typically recoups its initial costs within a span of 6-8 years. The exact payback period hinges on factors such as local electricity rates, available incentives, and the upfront expense of the solar installation. Over its lifespan, which exceeds 25 years, your solar system is likely to pay for itself two to three times over.
Can the installation of a solar array enhance the market value of my residence?
Indeed, incorporating solar panels into your home can potentially increase its appraised value by up to 4.1%.
My house is situated near a densely wooded area. Is it still practical to consider the purchase and installation of solar panels?
It is advisable to assess the presence of regions with adequate sunlight exposure and the feasibility of installing solar panels in such areas, even if they are occasionally shaded. The utilization of microinverters and power optimizers can help maintain the efficiency of a solar system, even when subjected to intermittent shading.
Payment & Delivery
How much does an average system cost?
PV system cost depends on various factors such as configuration, size, equipment and labor. An average system would cost about $10,000 without labor and incentives.
How can I pay for my order?
You can pay by credit card, Zelle or PayPal. You can also apply for PayPal credit or make an ACH payment. For large purchases we recommend using wire transfer.
What if I received damaged panels?
First of all, don’t worry. Sometimes it happens because of improper transportation. If you received broken panels:
1. Take full-length pictures of the damaged panels
- Note all damages on the delivery slip and inform the freight company
- Fill in Damage Report Form We’ll investigate your case and take care of the replacement. Read the article to learn more about how to receive and inspect freight shipment.
What if equipment breaks down before warranty runs out?
Contact the manufacturer of the equipment. If you have problems with an inverter, companies like Solaredge or Fronius offer remote troubleshooting.
Solar system design
How many solar panels will be necessary to fulfill my energy requirements?
On average, you will typically require a range of 15 to 30 solar panels to meet 100% of your energy needs. For a more precise calculation, we recommend utilizing our Solar System Calculator.
What level of power output can I anticipate from my solar panel system?
It’s essential to distinguish between the DC power output of your system and its AC production. The DC power rating represents the combined power output of all the panels within your system. In contrast, AC production signifies the usable alternating current generated. Due to factors such as imperfect panel positioning, cloud cover, and energy transfer and conversion losses, the AC production is approximately 20-25% lower than the DC power rating of your system.
Does the efficiency of solar panels decline over time?
Over time, the power production of solar panels experiences a gradual degradation, reducing by approximately 0.7% each year. It’s worth noting that some panels exhibit slower aging rates than others. For example, top-quality panels like those from Panasonic and REC lose only 0.25% of their output annually.
Is it advisable to mix different types of solar panels within a single system?
We do not recommend combining different panels within the same solar system. Doing so can result in some panels underperforming and potentially lead to malfunctions in the future. Moreover, such a system may not gain approval from relevant authorities, and warranties are likely to become void.
How should I select the appropriate inverter for my solar system?
The power rating of your chosen inverter should align with the DC power rating of your system. For string inverters, we suggest considering options such as Solaredge, Outback, and Schneider inverters. If you prefer microinverters, APsystems and Enphase are among the top choices.
Can solar panels continue to operate during power outages?
Standard grid-tie inverters are designed to shut down the system when a power outage occurs, adhering to safety requirements. However, if you have a hybrid inverter equipped with battery storage, it will seamlessly transition your home to battery support, allowing your solar panels to continue generating electricity even during an outage.
Solar system installation
What is the typical duration of a solar installation?
Professional installers typically complete the installation of a residential rooftop solar photovoltaic (PV) system within a timeframe ranging from one to three days.
How much roof area is required to accommodate solar panels?
The required roof space depends on your energy generation goals and the specific panels you intend to use. For instance, an average 400W panel typically occupies approximately 20 square feet. Consequently, a 6-kilowatt system would necessitate approximately 300 square feet of roof space. Opting for panels with higher efficiency ratings can help conserve space. To obtain a precise estimation of the space needed, we recommend using our Solar System Calculator.
Can solar panels be installed on surfaces other than rooftops, such as the ground or on RVs/boats?
The required roof space depends on your energy generation goals and the specific panels you intend to use. For instance, an average 400W panel typically occupies approximately 20 square feet. Consequently, a 6-kilowatt system would necessitate approximately 300 square feet of roof space. Opting for panels with higher efficiency ratings can help conserve space. To obtain a precise estimation of the space needed, we recommend using our Solar System Calculator.
How are solar panels mounted?
Do I need separate mounting frames or brackets for rooftop installations? Installers employ mounting frames and brackets to secure solar panels, whether on rooftops or the ground. To determine the most suitable mounting option for your specific circumstances, we recommend obtaining a quote and consulting with our engineers.
What orientation should I choose for the placement of solar panels?
In the northern hemisphere, it is advisable to orient your solar panels to face true south, while in the southern hemisphere, they should face true north. This alignment ensures that your solar panels receive direct sunlight throughout the day.
I've noticed a drop in voltage from my system during the summer months. What could be causing this?
It’s important to be aware that solar panel production tends to decrease in hot weather. Solar cells typically experience a reduction of around 0.4% in output for every degree above 77°F. Notably, solar panels tend to be hotter than the ambient air. Therefore, on a scorching summer day, a solar panel may lose approximately 10% of its output.
I've connected my solar panels together, but the system's voltage remains low. What could be the issue?
If you’ve connected your solar panels in parallel, the voltage across the array will remain low, but the currents from each panel will add up. Conversely, when you connect solar panels in series, the voltage figures add up, but the overall current remains low. The configuration you choose depends on your specific system requirements.