Who makes the panels in our systems, how the technologies differ, and what the certificates and
warranties really mean, explained simply for first-time solar buyers.
W
Waaree
One of India's largest solar module makers
Coming soon
Waaree Energies, headquartered in Mumbai, has been making solar modules for well over a decade and runs large module factories in Gujarat. Its range covers mono PERC, TOPCon and bifacial panels for homes, businesses and utility plants.
Known for: Wide range from small rooftop kits to large plants, including DCR panels for the subsidy scheme.
Systems
Coming soon
Sizes
–
Starting from
–
Datasheets
–
Not yet in our shop
Panel technology
The panel technology decides how much power you get from your roof. Efficiency is the share of sunlight turned into electricity.
Mono PERC
Panels made from single-crystal silicon with an extra reflective layer at the back of each cell, so light that passes through gets a second chance to make power.
Efficiency
Typically about 20–21.5%
Best for
Homes and small businesses that want proven, good-value panels.
TOPCon
A newer cell design with an ultra-thin "tunnel" layer that reduces energy losses inside the cell. You get more power from the same roof space and slightly better output in heat.
Efficiency
Typically about 22–23%
Best for
Rooftops with limited space, and buyers who want the most output per panel.
Bifacial
Panels that can catch light on both sides. The back picks up sunlight reflected from the roof or ground, adding extra energy when the surface below is light-coloured.
Efficiency
Front like mono/TOPCon, plus extra from the back
Best for
Elevated structures over white or reflective roofs, carports and ground mounts.
Quality & certifications
The marks to look for on a panel's datasheet, and what each one tells you.
BIS (IS 14286)
Bureau of Indian Standards certification. Solar modules sold in India must carry it, confirming they passed safety and performance tests.
IEC 61215 & 61730
International standards for module durability (heat, cold, humidity, hail, load) and electrical safety.
ALMM listed
The Approved List of Models and Manufacturers from MNRE. Government-supported projects can only use panels on this list.
DCR
Domestic Content Requirement: cells and modules made in India. DCR panels are needed to claim the rooftop solar subsidy.
Warranty
A solar system comes with more than one warranty. Here is how long each usually lasts and what it covers.
Product warranty Usually 10–15 years
Covers defects in materials and manufacturing: a cracked frame, failed junction box or faulty cells. If the panel is defective, the maker repairs or replaces it.
Performance warranty Usually 25–30 years
Promises the panel keeps producing a minimum share of its rated power over time, for example around 80–87% after 25–30 years, with a small allowed drop each year.
Inverter warranty Usually 5–10 years
The inverter has its own, shorter warranty from its maker. Check whether it is on-site service or return-to-base.
Exact terms differ by brand and model. Always check the warranty section of the datasheet for the panel you buy.
Datasheets
Manufacturer datasheets and certificates we hold for Waaree.
Datasheets will appear here as we add them.
A
Adani
Integrated cell and module manufacturing
Coming soon
Adani Solar is the solar manufacturing business of the Adani Group. It makes solar cells and modules at an integrated manufacturing facility in Mundra, Gujarat, and supplies rooftop and utility-scale projects.
Known for: Making both the cells and the modules in-house, including high-efficiency TOPCon and bifacial panels.
Systems
Coming soon
Sizes
–
Starting from
–
Datasheets
–
Not yet in our shop
Panel technology
The panel technology decides how much power you get from your roof. Efficiency is the share of sunlight turned into electricity.
Mono PERC
Panels made from single-crystal silicon with an extra reflective layer at the back of each cell, so light that passes through gets a second chance to make power.
Efficiency
Typically about 20–21.5%
Best for
Homes and small businesses that want proven, good-value panels.
TOPCon
A newer cell design with an ultra-thin "tunnel" layer that reduces energy losses inside the cell. You get more power from the same roof space and slightly better output in heat.
Efficiency
Typically about 22–23%
Best for
Rooftops with limited space, and buyers who want the most output per panel.
Bifacial
Panels that can catch light on both sides. The back picks up sunlight reflected from the roof or ground, adding extra energy when the surface below is light-coloured.
Efficiency
Front like mono/TOPCon, plus extra from the back
Best for
Elevated structures over white or reflective roofs, carports and ground mounts.
Quality & certifications
The marks to look for on a panel's datasheet, and what each one tells you.
BIS (IS 14286)
Bureau of Indian Standards certification. Solar modules sold in India must carry it, confirming they passed safety and performance tests.
IEC 61215 & 61730
International standards for module durability (heat, cold, humidity, hail, load) and electrical safety.
ALMM listed
The Approved List of Models and Manufacturers from MNRE. Government-supported projects can only use panels on this list.
DCR
Domestic Content Requirement: cells and modules made in India. DCR panels are needed to claim the rooftop solar subsidy.
Warranty
A solar system comes with more than one warranty. Here is how long each usually lasts and what it covers.
Product warranty Usually 10–15 years
Covers defects in materials and manufacturing: a cracked frame, failed junction box or faulty cells. If the panel is defective, the maker repairs or replaces it.
Performance warranty Usually 25–30 years
Promises the panel keeps producing a minimum share of its rated power over time, for example around 80–87% after 25–30 years, with a small allowed drop each year.
Inverter warranty Usually 5–10 years
The inverter has its own, shorter warranty from its maker. Check whether it is on-site service or return-to-base.
Exact terms differ by brand and model. Always check the warranty section of the datasheet for the panel you buy.
Datasheets
Manufacturer datasheets and certificates we hold for Adani.
Datasheets will appear here as we add them.
E
Emmvee
A long-standing Bengaluru solar manufacturer
Coming soon
Emmvee is a Bengaluru-based company with a long history in solar, manufacturing photovoltaic modules in Karnataka for rooftop and commercial projects across India.
Known for: Mono PERC and TOPCon modules from a manufacturer with a long track record in Indian solar.
Systems
Coming soon
Sizes
–
Starting from
–
Datasheets
–
Not yet in our shop
Panel technology
The panel technology decides how much power you get from your roof. Efficiency is the share of sunlight turned into electricity.
Mono PERC
Panels made from single-crystal silicon with an extra reflective layer at the back of each cell, so light that passes through gets a second chance to make power.
Efficiency
Typically about 20–21.5%
Best for
Homes and small businesses that want proven, good-value panels.
TOPCon
A newer cell design with an ultra-thin "tunnel" layer that reduces energy losses inside the cell. You get more power from the same roof space and slightly better output in heat.
Efficiency
Typically about 22–23%
Best for
Rooftops with limited space, and buyers who want the most output per panel.
Quality & certifications
The marks to look for on a panel's datasheet, and what each one tells you.
BIS (IS 14286)
Bureau of Indian Standards certification. Solar modules sold in India must carry it, confirming they passed safety and performance tests.
IEC 61215 & 61730
International standards for module durability (heat, cold, humidity, hail, load) and electrical safety.
ALMM listed
The Approved List of Models and Manufacturers from MNRE. Government-supported projects can only use panels on this list.
DCR
Domestic Content Requirement: cells and modules made in India. DCR panels are needed to claim the rooftop solar subsidy.
Warranty
A solar system comes with more than one warranty. Here is how long each usually lasts and what it covers.
Product warranty Usually 10–15 years
Covers defects in materials and manufacturing: a cracked frame, failed junction box or faulty cells. If the panel is defective, the maker repairs or replaces it.
Performance warranty Usually 25–30 years
Promises the panel keeps producing a minimum share of its rated power over time, for example around 80–87% after 25–30 years, with a small allowed drop each year.
Inverter warranty Usually 5–10 years
The inverter has its own, shorter warranty from its maker. Check whether it is on-site service or return-to-base.
Exact terms differ by brand and model. Always check the warranty section of the datasheet for the panel you buy.
Datasheets
Manufacturer datasheets and certificates we hold for Emmvee.
Datasheets will appear here as we add them.
R
Reliance
A new-energy business from Reliance Industries
Coming soon
Reliance New Energy is part of Reliance Industries and is building an integrated solar manufacturing complex at Jamnagar, Gujarat, covering the chain from materials to finished modules.
Known for: Large-scale integrated manufacturing, focused on newer high-efficiency module technologies.
Systems
Coming soon
Sizes
–
Starting from
–
Datasheets
–
Not yet in our shop
Panel technology
The panel technology decides how much power you get from your roof. Efficiency is the share of sunlight turned into electricity.
TOPCon
A newer cell design with an ultra-thin "tunnel" layer that reduces energy losses inside the cell. You get more power from the same roof space and slightly better output in heat.
Efficiency
Typically about 22–23%
Best for
Rooftops with limited space, and buyers who want the most output per panel.
Bifacial
Panels that can catch light on both sides. The back picks up sunlight reflected from the roof or ground, adding extra energy when the surface below is light-coloured.
Efficiency
Front like mono/TOPCon, plus extra from the back
Best for
Elevated structures over white or reflective roofs, carports and ground mounts.
Quality & certifications
The marks to look for on a panel's datasheet, and what each one tells you.
BIS (IS 14286)
Bureau of Indian Standards certification. Solar modules sold in India must carry it, confirming they passed safety and performance tests.
IEC 61215 & 61730
International standards for module durability (heat, cold, humidity, hail, load) and electrical safety.
ALMM listed
The Approved List of Models and Manufacturers from MNRE. Government-supported projects can only use panels on this list.
DCR
Domestic Content Requirement: cells and modules made in India. DCR panels are needed to claim the rooftop solar subsidy.
Warranty
A solar system comes with more than one warranty. Here is how long each usually lasts and what it covers.
Product warranty Usually 10–15 years
Covers defects in materials and manufacturing: a cracked frame, failed junction box or faulty cells. If the panel is defective, the maker repairs or replaces it.
Performance warranty Usually 25–30 years
Promises the panel keeps producing a minimum share of its rated power over time, for example around 80–87% after 25–30 years, with a small allowed drop each year.
Inverter warranty Usually 5–10 years
The inverter has its own, shorter warranty from its maker. Check whether it is on-site service or return-to-base.
Exact terms differ by brand and model. Always check the warranty section of the datasheet for the panel you buy.
Datasheets
Manufacturer datasheets and certificates we hold for Reliance.
Datasheets will appear here as we add them.
Compare the brands
Side by side, based on the systems in our shop today.
There is no single best brand. All the makers here produce certified panels; the right choice depends on your roof space, budget and whether you want the subsidy (which needs DCR panels). Compare the technology and warranty, then the price for your system size.
Is TOPCon worth paying more for than Mono PERC?
If your roof is small, usually yes: TOPCon panels make more power from the same area and lose a little less output in heat. If you have plenty of space, Mono PERC is a proven, good-value choice.
What does DCR mean and do I need it?
DCR panels use Indian-made cells and modules. You need them if you want the government rooftop solar subsidy. Non-DCR panels can cost less but do not qualify for the subsidy.
What is the difference between product and performance warranty?
The product warranty covers manufacturing defects (usually 10–15 years). The performance warranty guarantees the panel still produces a minimum share of its rated power for 25–30 years.
Where can I find the datasheet for a panel?
Datasheets and certificates we have from each maker are listed in the Datasheets & resources section on this page and on each product's page under "Datasheets".
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