Waaree Energies Bi-11-390
Waaree Energies Bi-11-390
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Waaree Energies Bi-11-390

Waaree Energies Bi-11-390

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9+ sold

In the last 7 days

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Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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Specifications

Datasheet
Wattage 390W
Efficiency 19.52%
Cell Type Mono PERC Bifacial
Voc 49.29 V
Vmp 40.61 V
Isc 10.09 A
Imp 9.62 A
Cells 72
Cell Size 158.75 mm

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Waaree Bi-11-390 390W Bifacial Mono PERC Dual Glass Solar Panel

Model Bi-11-390 | Mono PERC Bifacial | 72 Full-Cell Mono PERC | Bifacial | 1500V System Voltage

390 Wp
Max Power Output
19.52%
Module Efficiency
72 Cells
Mono PERC Bifacial

Product Overview

The Waaree Bi-11-390 390W bifacial mono PERC dual glass solar panel is engineered for reliable, high-yield solar power generation in demanding environments. This premium module combines mono PERC cell technology with bifacial design to capture light from both sides, improving overall energy output per square meter. With a maximum power rating of 390 Wp and panel efficiency of 19.52%, it suits rooftop, commercial, and ground mount systems seeking strong production in limited space. Dual glass construction, anti-reflection coating, and robust IP68 junction box protection work together to deliver long-term durability. Installers and owners benefit from stable performance, low annual degradation, and a proven Indian manufacturer with strong quality standards.

Key Benefits

High power density for limited roof space: The 390 Wp output and up to 19.52% efficiency allow strong generation in compact arrays. System designers can achieve target energy yields with fewer modules and simplified balance of system components.

Bifacial gain for higher energy yield: Bifacial mono PERC cells harvest reflected light from the rear side, increasing total energy production. On suitable surfaces, rear-side contribution can significantly boost kWh per installed kilowatt over the system lifetime.

Durable dual glass construction: The dual glass design offers excellent resistance to moisture, dust, and environmental stress. Tempered glass with anti-reflection coating helps protect the cells and maintain performance under harsh weather conditions.

Proven long-term performance: A 10 year product warranty and linear power warranty support long service life planning. The degradation profile retains 90.7% of rated power at 10 years and 80.2% at 25 years, which supports dependable lifetime output.

Flexible integration with modern systems: A maximum system voltage of 1500 V and 25 A series fuse rating support longer strings. This flexibility simplifies array design for both commercial rooftops and ground mounted installations.

How It Works

This Waaree Bi-11-390 solar panel converts sunlight into usable DC electricity using high efficiency mono PERC bifacial cells encapsulated in a dual glass structure. When sunlight hits the front glass surface, photons are absorbed by the monocrystalline cells and released as electrical energy via the photovoltaic effect. The bifacial configuration also allows the rear side to capture reflected and diffuse light from the ground or nearby surfaces, increasing the overall energy harvest. Electrical connections run through an IP68 rated junction box and MC4 compatible connectors, allowing the panel to integrate safely within series and parallel strings. Once connected to an appropriate inverter, the generated DC power is converted to AC for use in homes, businesses, or to export to the grid.

Front-side mono PERC power generation: The monocrystalline PERC cells on the front face capture direct sunlight and generate DC current at standard test conditions. Optimized cell design and 40.61 V maximum power voltage help deliver a 390 Wp output with strong performance at 1000 W/m² irradiance.

Rear-side bifacial energy gain: The transparent dual glass structure exposes the rear side of the cells to ambient and reflected light. When installed over bright or reflective surfaces, this rear-side exposure increases currents beyond front-only operation, enhancing annual energy yield per installed module.

Thermal and electrical stability in real conditions: The panel operates within a wide temperature range from -40 °C to 85 °C while maintaining controlled performance shifts. Temperature coefficients of -0.37 %/°C for Pmax, -0.27 %/°C for Voc, and 0.05 %/°C for Isc limit output losses during hot days and enable predictable system behavior across seasons.

Technical Specifications

Brand Waaree Energies Ltd
Country of Origin India
Model Number Bi-11-390
Technology Bifacial Mono PERC Dual Glass Module
Cell Type and Arrangement 72 monocrystalline PERC bifacial cells (12 x 6 full cells)
Power Range (Series) 380 Wp to 395 Wp (AHNAY Series Bi-11-380 to Bi-11-395)
Nominal Max Power (Pmax, STC) 390 Wp (front side)
Pmax at NOCT 288.3 Wp
Module Efficiency (STC) 19.52%
Series Efficiency Range (AHNAY Series) 19.02% to 19.77% (Bi-11-380 to Bi-11-395 front side)
Voltage at Max Power (Vmpp, STC) 40.61 V
Voltage at Max Power (Vmpp, NOCT) 37.29 V
Current at Max Power (Impp, STC) 9.62 A
Current at Max Power (Impp, NOCT) 7.73 A
Open Circuit Voltage (Voc, STC) 49.29 V
Open Circuit Voltage (Voc, NOCT) 45.48 V
Short Circuit Current (Isc, STC) 10.09 A
Short Circuit Current (Isc, NOCT) 8.16 A
Bifacial Backside Power Gain (Example 25%) Up to 488 W power output and 24.40% module efficiency at 25% rear gain (Bi-11-390)
Maximum System Voltage 1500 V DC
Series Fuse Rating 25 A
Nominal Operating Cell Temperature (Indicative) 46 ± 2 °C
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax -0.37 %/°C
Temperature Coefficient of Voc -0.27 %/°C
Temperature Coefficient of Isc +0.05 %/°C
Module Dimensions (L x W x T) 2002 mm x 998 mm x 6.5 mm
Weight 28 kg
Front Glass Type Tempered glass with anti-reflection coating
Rear Glass Type Tempered glass (dual glass construction)
Junction Box Protection Rating IP68 rated junction box
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm²
Cable Length 500 mm

Certifications & Compliance

Certifications: IEC 61215, IEC 61730, UL 61730, IEC TS 62804-1, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, with independent factory assessment by Black & Veatch.
Inverter Compatibility: Compatible with modern grid-tied and hybrid string inverters rated up to 1500 V DC input, following manufacturer design guidelines.
Environmental: Dual glass, ammonia resistant, sand and hail resistant design with robust wind and snow load tolerance, suitable for varied climate conditions.
Warranty: 10 year product warranty, plus linear power warranty delivering 90.7% of rated power at 10 years and 80.2% at 25 years, with an average annual degradation of approximately 0.79%.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

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When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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