Experience cutting-edge solar technology with Philadelphia Solar PS-M144HCBF (540-555W) Bifacial Modules. Built for durability, efficiency, and long-term performance, these state-of-the-art panels are the ultimate solution for powering your energy needs. Contact online >>
Experience cutting-edge solar technology with Philadelphia Solar PS-M144HCBF (540-555W) Bifacial Modules. Built for durability, efficiency, and long-term performance, these state-of-the-art panels are the ultimate solution for powering your energy needs.
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Our panels meet international standards, including:
Philadelphia Solar is committed to environmental and safety excellence, with certifications in ISO 9001, ISO 14001, and ISO 45001.
This complete LG NeON R solar panel system includes:
25 Year Limited Product Warranty
25 Year Limited Power Output Warranty
Contractor Discounts Available · Residential Solar System Prices
Popular inverters we supply:
One of the most important features of a solar panel is how much energy it can produce. After all, that’s what they’re designed to do!
Prospective solar panel owners usually have a goal for how much energy they want to produce. Maybe it is 100% of their household needs or even just 50%. In any case, there are a number of factors that will influence the energy production capabilities of a solar panel and how many panels they’ll need.
With the cost of solar dropping over 60% in the last 10 years and a 30% tax solar credit available to all homeowners, it is much more realistic for home and business owners to install solar panels on their property. In this post, we explore how solar panels function and produce energy.
First, let''s go over the basics.
Solar panels work by allowing particles of light, called photons, to knock electrons from their atomic orbitals. The electrons are captured on conductors in the form of an electric current and this electricity is harnessed and preserved. The area where this reaction occurs is called a photovoltaic cell or solar cell.
Solar panels (or modules) are made up of hundreds or thousands of these cells, and multiple solar panels make up a solar array. These arrays are connected into the existing electrical grid and/or battery storage so that the generated energy can be directed properly.
In 2023, residential solar panels are typically rated to produce 250 to 450 Watts per hour of direct sunlight. Today, the most common power rating is 400 Watts as it provides a good balance of efficiency and affordability. A 400 Watt panel with 4.5 direct sun hours a day can be expected to produce 1,800 Watt-hours of DC electricity per day — or roughly 1,750 Watt-hours once it’s converted to AC electricity — which is more than enough to power a refrigerator and lighting needs for the average US household.
To measure how much electricity a solar panel produces you’ll need two figures:
Solar panel output varies by model and ranges from around 250 to 450 Watts. The Wattage output rating represents how much energy the panel can produce per hour under standard testing conditions.
In 2023, 400W panels are considered standard, so we’ll use this output for our example.
Peak sun hours is a measurement of how much usable sunlight your solar panels receive. This varies from over 5.75 hours per day in the Southwest to less than 4 hours per day in the northernmost parts of the US. Check the peak sun hours for your location here.
Since a majority of the US gets 4.5 peak sun hours per day or more, we’ll use 4.5 hours for our example.
We typically account for 3% loss in converting the solar energy output from DC to AC, which comes to roughly 1,750 Watt-hours. To convert to the standard measurement of kWh, simply divide by 1,000 to find that one 400W panel can produce 1.75 kWh per day.
A 400W solar panel receiving 4.5 peak sun hours per day can produce 1.75 kWh of AC electricity per day, as we found in the example above. Now we can multiply 1.75 kWh by 30 days to find that the average solar panel can produce 52.5 kWh of electricity per month.
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