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Frequently Asked Questions

General FAQ

How many panels do I need?

On average, you’ll need 28-34 solar panels to cover 100% of your energy needs. To get a more precise number, use our Solar System Calculator.

How much does an average system cost?

PV system cost depends on various factors such as configuration, size, equipment and so on. An average system would cost $11,000 to $14,000 including 30% Solar Tax Credit.

How much power can I produce with a solar panel system?

The sky's the limit. To calculate precise power output, you’ll need the following equation: panel wattage x number of panels x number of sunlight hours. For example, a system of 10 pcs of 290W panels in California with 5 hours of direct sunlight would generate about 14.5 kWh a day.

Do I need constant sunshine for my solar panels to work?

No, though the output will reduce accordingly. Solar panels do work in the shade, on cloudy days or when there is no direct sunlight – just at less capacity.

How long will my solar panels last?

The average life expectancy of solar panels is 25-30 years. However, this doesn't mean they won’t produce electricity after that. They will, but at slightly reduced output.

What guarantees do solar panels come with?

Typically solar panels go with two warranties: a performance and product guarantee (25 and 10 years respectively). However, some manufacturers may provide extended warranties as well. Look for detailed warranty info here.

How long does a solar installation take?

For professional installers, it normally takes from one to three days to install a rooftop residential solar PV system.

What direction to choose for solar panels?

Make your solar panels face true south if you live in the northern hemisphere, and true north if you live in the southern. This will ensure your solar panels receive direct light throughout the day.

Can a solar array increase the value of my home?

Yes, installing solar panels in a home can potentially increase its value by up to 4.1%.

Do I need to worry about solar panels in the snow?

No, most of them are designed to withstand heavy snow loads.

Is going solar worth it?

Will my solar system pay for itself?

The answer is definitely YES. A typical solar panel payback period is about 5-6 years, but it can vary depending on your location.

How long will my solar panels last?

The average life expectancy of solar panels is 25-30 years. However, this doesn't mean they won’t produce electricity after that. They will, but at slightly reduced output.

What guarantees do solar panels come with?

Typically solar panels go with two warranties: a performance and product guarantee (25 and 10 years respectively). However, some manufacturers may provide extended warranties as well. Look for detailed warranty info here.

Can a solar system make money?

It can! There are lots of programs and incentives, like Federal Solar Tax Exemption or Net Metering, which can help you system pay back and start earning money in several years. Find all available solar incentives in your state here.

Can a solar array increase the value of my home?

Yes, installing solar panels in a home can potentially increase its value by up to 4.1%.

Payment & Delivery

How much does an average system cost?

PV system cost depends on various factors such as configuration, size, equipment and so on. An average system would cost $11,000 to $14,000 including 30% solar tax credit.

How long does delivery take?

Normally it takes us 48 hrs to prepare your order for shipping. Depending on the delivery address, it takes 4-7 business days to deliver it.

Where is the nearest fulfillment center located?

You can find a map with all fulfillment centers on the main page. When you place a pickup order, we will email you all the details on the location.

How can I pay for my order?

You can pay by credit card or PayPal. You can also apply for PayPal credit or make an ACH payment. For large purchases we recommend using wire transfer.

Is there a minimum order size?

Basically we can ship any number of panels. However, the smaller your order, the higher the risk of damage. If you need up to 6 panels, we strongly recommend choosing pickup. Otherwise you'll have to pay double shipping cost.

Can I return panels after the payment has been processed?

Yes, you can return your panels. For more information, please, see our Return policy. Note that shipping charges are non-refundable.

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

2. Note all damages on the delivery slip

3. Fill in Damage Report Form

We'll investigate your case and take care of the replacement.

Can A1 Solar Store ship solar panels to Caribbean Islands and South America?

Yes. A1 Solarstore can ship your order almost anywhere (Panama, Mexico, Brazil, Costa Rica, Uruguay etc. including all islands of Caribbean Sea).

After placing an order, please, provide us with your preferred Freight forwarder information.

If you do not have one, we can assist with the import and export of your goods, from initial quote and document preparation to tracking and delivery to the final destination. Our trusted freight forwarding partners offer a flexible array of international shipping options, including door-to-door service to many major cities worldwide or standard door-to-airport or door-to-port service to almost any international destination.

All prices on our site are in US dollars. For international shipping, we only accept bank wire or cryptocurrency payments.

When ordering outside of the United States of America, the recipient is responsible for assuring the product can be legally imported to the destination country.

The recipient is the importer of record and must comply with all the laws and regulations of the destination country. The recipient of an international shipment may be subject to import taxes, customs duties and fees, which are imposed once a shipment reaches the recipient's country. Additional charges for customs clearance must be fulfilled by the recipient.

Customs, duties, and taxes are non-refundable. If a shipment is being refused because of the unexpected import fees, the cost of the original shipping and any additional return shipping charges will not be refunded. Customs policies vary widely from country to country; you should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

If you have any questions regarding your international order, please email us.

Solar system design

How many panels do I need?

On average, you’ll need 28-34 solar panels to cover 100% of your energy needs. To get a more precise number, use our Solar System Calculator.

How much power сan I produce with a solar panel system?

The sky's the limit. To calculate precise power output, you’ll need the following equation: panel wattage x number of panels x number of sunlight hours. For example, a system of 10 pcs of 290W panels in California with 5 hours of direct sunlight would generate about 14.5 kWh a day.

Does solar panel efficiency decrease over time?

Yes, it does. Generally, panel power production degrades about 1% per year.

Can I mix different panels in one system?

While in theory you can, it is not recommended. Panels can have different specifications and compatibility. Trying to build a system out of them may turn out to be quite a challenge. Besides, it might not get approved by officials and warranties are likely to be voided.

How to choose an inverter?

Normally solar panels produce power for over 25 years, so it would be logical to invest in a good inverter with quality warranty. For string inverters, we recommend Solaredge, Outback and Schneider inverters. For microinverters, APsystems is the best choice.

Solar system installation

How much roof space do I need for solar panels?

It depends on how much energy you are planning to generate. As a rule of thumb, every square foot of roof space can potentially generate about 15 watts of solar energy. So, you’ll need at least 100 ft² for a smaller system and more than 1,000 ft² for a larger one.

What direction to choose for solar panels?

Make your solar panels face true south if you live in the northern hemisphere, and true north if you live in the southern. This will ensure your solar panels receive direct light throughout the day.

Can I install solar panels on an RV/boat, not on the roof?

All panels are essentially the same and can be installed anywhere.

How long does a solar installation take?

For professional installers, it normally takes from one to three days to install a rooftop residential solar system.

How are panels mounted? Are separate mounting frames or brackets required to mount the panels on rooftops?

Installers use mounting frames and brackets to fix panels on the roof or on the ground. Get a quote and our engineer will give you advice on the best possible mounting option in your circumstances. 

Do you offer permitting services?

Currently not, but we're working on it.

Do I need constant sunshine for my solar panels to work?

No, though the output will reduce accordingly. Solar panels do work in the shade, on cloudy days or when there is no direct sunlight – just at less capacity.

What is the panel efficiency on a cloudy day?

Panel power production depends on how much sun it’s getting. Yes, it will produce power on a cloudy day. But its amount depends on how much sun is getting through the clouds.

I live in Montana (North Dakota/Minnesota/etc.), does it make sense to order and install solar panels?

Yes, solar panels perform very well in cold climates.

Do I need to worry about solar panels in the snow?

No, most of them are designed to withstand heavy snow loads.

My house is near a high forest, does it make sense to order and install solar panels?

You will need to check if you have areas with direct sunlight and if it is possible to install panels in those areas. With the help of microinverters or power optimizers, a solar system can still be very efficient under such shading conditions.

Stay tuned

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