We supply both polycrystalline PV modules and monocrystalline PV modules in India. Please click on the links to get the detailed specifications of our PV modules. If you would like to know the price of our PV modules, please send an email to info@cenergymaxpower and we will get back to you ASAP. Please do mention the order size and the place of delivery so that we can give you our best rates and exact delivery times.


What is a solar cell?

A solar cell is an electrical device that converts the energy of light directly into electricity by a phenomenon called the photovoltaic effect. It is a form of photoelectric cell (in that its electrical characteristics—e.g. current, voltage, or resistance—vary when light is incident upon it) which, when exposed to light, can generate and support an electric current without being attached to any external voltage source, but do require an external load for power consumption.

What is a solar PV module?

A solar PV module consists of many solar cells that are connected together (typically in series) and packaged in a frame (typically made of aluminium). The wattageof solar PV modules varies from 3W to 400W.

What is a solar PV panel?

A solar PV panel is a set of solar PV modules that are connected and mounted (either on rooftops or on the ground) with the help of mounting structures.

In small capacity installations, multiple solar PV modules are connected in series. When solar PV modules are connected in series, the voltage of the individual modules adds up. Therefore, the number of solar PV modules that can be connected in series depends on the maximum voltage that the inverter can take as input. It is typically in the 300V-1000V range. For example, ESM300-156 (which is our 300W polycrystalline solar PV module) has Voc of 44.68 and maximum system voltage of 1000V. So you cannot more than 22 of these panels in series. If you decide to connect 20 of these panels in series, you will form a panel of capacity 6000W.

In high capacity installations, multiple small capacity installations are connected in parallel. For example if you want to do a 30kW installation, you will connect 5 panels of 6000W (as described above) in parallel.

What are the different types of solar PV modules?

There are two types of solar PV modules: crystalline solar PV modules and thin film solar PV modules.

There are two types of crystalline solar PV modules: polycrystalline solar PV modules and monocrystalline solar PV modules.

Thin film solar PV modules are usually categorized based on the photovoltaic material used. The four main types of materials used are: amorphous silicon and other types of silicon, cadmium telluride (CdTe), copper indium gallium selenide (CIS or CIGS), and dye-sensitized solar cells (DSC) or other organic solar cells.

Thin film solar PV modules are also be categorized in a completely different way: rigid thin film solar PV modules and flexible thin film solar PV modules. Rigid thin film solar PV modules are created by using a glass substrate, while flexible thin film solar PV modules are created on a flexible metallic or plastic substrate. Both, rigid and flexible, thin film solar PV modules can have any of the above mentioned four types of photovoltaic materials.

What are the advantages of polycrystalline solar PV modules?

Advantages of polycrystalline solar PV modules are:

  1. They contain silicon crystals of varying sizes and orientations. As a result, they can absorb light from various directions, and therefore they perform better in low-light and diffused-light conditions.
  2. They occupy less space compared to thin film solar PV modules.
  3. They are less expensive compared to monocrystalline solar PV modules.

What are the disadvantages of polycrystalline solar PV modules?

Disadvantages of polycrystalline solar PV modules are:

  1. They occupy more space compared monocrystalline solar PV modules.
  2. They are more expensive compared to thin film solar PV modules.

What is the price of polycrystalline solar PV modules in India?

The price of polycrystalline solar PV modules in India can vary greatly from one manufacturer to another. But as far as a ballpark number is concerned, polycrystalline solar PV modules cost around Rs.40 per watt in India (as of 1st May, 2014) and can vary by as much as 15% in either direction from manufacturer to manufacturer.

The above prices are for big modules (> 200W in capacity or rated power); the price of smaller modules is higher than this, and the smaller the module, the higher is its price per watt.

The prices are also dependent on quantity or order size. If the order size is large, then the price per watt decreases. If the order size is small, then the price per watt increases.

What are the advantages of monocrystalline solar PV modules?

Advantages of monocrystalline solar PV modules are:

  1. They have the highest efficiency of all types of solar PV modules, with the exception of CdTe thin film solar PV modules which have higher efficiencies.
  2. They occupy the least amount of space of all types of solar PV modules,with the exception of CdTe thin film solar PV modules.

What are the disadvantages of monocrystalline solar PV modules?

Disadvantages of monocrystalline solar PV modules are:

  1. They are expensive compared to almost all types of solar PV modules.

What is the price of monocrystalline solar PV modules in India?

The price of monocrystalline solar PV modules in India can vary greatly from one manufacturer to another. But as far as a ballpark number is concerned, monocrystalline solar PV modules cost around Rs.50 per watt in India (as of 1st May, 2014) and can vary by as much as 15% in either direction from manufacturer to manufacturer.

The above prices are for big modules (> 200W in capacity or rated power); the price of smaller modules is higher than this, and the smaller the module, the higher is its price per watt.

The prices are also dependent on quantity or order size. If the order size is large, then the price per watt decreases. If the order size is small, then the price per watt increases.

What are the advantages of thin film solar PV modules?

Advantages of thin film solar PV modules are:

  1. They are less expensive compared to polycrystalline and monocrystalline solar PV modules.

What are the disadvantages of thin film solar PV modules?

Disadvantages of thin film solar PV modules are:

  1. They occupy more space compared to polycrystalline and monocrystalline solar PV modules since their efficiency is 7% to 10%.

Do solar PV modules produce DC electricity or AC electricity?

Solar PV modules, irrespective of their type, produce DC electricity. This DC electricity has to be inverted with the help of an inverter if you want AC electricity.

What is the amount of electricity generated by solar PV modules dependent on?

The amount of electricity generated by solar PV modules is dependent on many factors. They are:

  1. Solar radiation level: The amount of electricity generated by solar PV modules is directly proportional to the solar radiation level.
  2. Conversion efficiency: The amount of electricity generated by solar PV modules is directly proportional to its conversion efficiency, which in turn is determined by the solar PV module technology.
  3. Angle of incidence: The amount of electricity generated by solar PV modules is highest when the sunlight is perpendicular to the surface of the module. As the angle of incidence increases with respect to this reference, the electricity generated decreases.

Do all parts of India produce equal amounts of electricity?

No, different parts of India produce different amounts of electricity. Some parts may produce as much as 15%-20% more electricity more than other parts.

What is the solar map of India?

Solar map of India is a map of India which shows the amount of electricity that different parts of India will generate.india

How much electricity does a PV panel produce in a day?

A 1kWp solar PV panel will produce around 5 units of electricity on a clear sunny day.

How much electricity does a PV panel produce in a month?

A 1kWp solar PV panel will produce around 150 units of electricity in a month (5 units per day multiplied by 30 clear sunny days in a year). This amount will be significantly lower during the rainy season.

How much electricity does a PV panel produce in a year?

A 1kWp solar PV panel will produce around 1500 units of electricity in a year (5 units per day multiplied by 300 clear sunny days in a year). Areas that get more clear sunny days will product more electricity in a year (up to 15%-20% higher).

Do solar PV modules produce any electricity on cloudy/overcast days?

Yes, solar PV modules will produce some electricity on cloudy/overcast days, but it will be significantly less compared to what it will produce on a clear sunny day.

Do solar PV modules produce any electricity on rainy days?

Yes, solar PV modules will produce some electricity on rainy days, but it will be significantly less compared to what it will produce on a clear sunny day.

Do solar PV modules produce more electricity in summer?

Yes, solar PV modules will produce more electricity on clear sunny day because the solar radiation levels are higher and the sun shines for a lot longer compared to a rainy or cloudy/overcast day. Also, during summer, since the sun is closer to being directly overhead, the rays of the sun are less slanted, and that results in higher electricity generation as well.

However, in most areas in India, the ambient temperature is also higher than at other times during the year. That reduces the electricity generation slightly since the amount of electricity generated decreases with increasing ambient temperature.

Do solar PV modules generate the same amount of electricity every year?

No, solar PV modules generate the most amount of electricity in the first year. Their electricity generation capacity goes on decreasing every year by roughly 0.5% per year.

What is the typical life of solar PV modules?

The typical life of PV modules is 25 years. However, good quality PV modules can last for even as much as 35-40 years. However, their electricity generation capacity will have reduced considerably by then.

What is the typical power warranty given by solar PV module manufacturers?

The typical power warranty given by good solar PV module manufacturers is as follows:

  • 90% of the rated power for the first 10 years
  • 80% of the rated power for the first 15 years

Our solar PV modules come with an even better power warranty:

  • 95% of the rated power for the first 5 years
  • 90% of the rated power for the first 5 years
  • 80% of the rated power for the first 15 years

Can I connect my loads directly to the solar PV module?

Yes, if your loads work on DC, then you can connect them directly to the solar PV module. However, the amount of electricity generated by the solar PV modules can vary significantly during a day. Ensure that your DC load is tolerant to these variations and will not get damaged by them.