Currently, for commercial panels, the highest wattage solar panel available on the market is 700W. With over 10 GW installed worldwide, REC is empowering more than 16 million people with clean solar energy. This indicates that solar panel with a higher temperature coefficient may likely return a lower capacity factor and performance ratio. $81. REC offers 25 years of product warranty and guarantees 84. 2 out of 5 stars (158) $ 1,239. All information about Solar Panel REC320NP. 8%. 2. The N-Peak REC330NP 330W monocrystalline solar panel from REC Solar is a premium monocrystalline solar panel that uses REC's proven half-cut cell technology. Solar power equipment for homes, businesses boats and RVs. While household energy usage tends to be lowest around that time, you’ll be left with lots of excess solar. REC N-Peak 330W 120 Half-Cell 1000V BLK/WHT Solar Panel, REC330NP | Greentech RenewablesREC350TP2S 72. 1 2. Clean Power Store created by the industry’s leading solar pioneers to reduce solar costs. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 6 (47 Bewertungen) "Longi ist definitiv das neue Photovoltaik-Kraftpaket. These 300+ watt panels come in a variety of footprints and voltages to suit your needs from high efficiency panels to commercial ground mount solutions. 99. power optimizers. . 65. South is best for homes with net metering. The panel features the innovative REC ‘Twin’ cell layout design, where the panel is split. com / en-us/suppor t /module-co mpatibilit y. 67. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 6 inches for the frame, and each panel usually weighs about 42 pounds. Manuals Brands REC Manuals Solar & Wind Power N-Peak REC330NP Roof-Mounted Solar Panel Systems. Advanced Solar Cell Tech and Panel Structure - Renogy solar panels adapted the newest 9 Bus-bars cell tech and Half-cell structure, allowing the full-size solar cell to be cut in half and closely arranged for space usage maximization. In our opinion, the best panel options—if you’re looking for a mix of upfront affordability and longevity for long-term savings—are the Q. Stock Code: 79816. These panels are physically smaller as well and could be a good option if you have a small roof that can’t fit the larger pa nel options. 25-YEAR POWE R W ARRANTY. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. The panel features the innovative REC ‘Twin’ cell layout design, where the panel is split into two twin sections, also enabling continued energy production. us. Rec solar solaredge in this package: · rec n peak n type mono perc rec330np 330w panels. View All ; All Remote Off-Grid Solar Systems ; PAD & POLE MOUNT ; CLASS 1 DIV 2 - OIL & GASGreentech Renewables sells Multi-Contact (MC), REC Solar Products and other solar equipment at the most competitive prices. Bifacial Solar Panels Source: pv-magazine. We design and install residential and commercial. 00. The proper installation of an SPD relies on three values, which are:For residential solar panels, the standard dimensions are 66x40 inches for the panel, about 1. Contact its suppliers or service providers to request a quote or find out the best price. The Gaza Strip has an estimated 12,400 rooftop solar systems, likely representing the highest density in the. 20-year product and 25-year performance warranty for the panels. Find many great new & used options and get the best deals for Rec Solar Panel 330W Or Similar Pallet Of 10 I330x10-Total 3,300 at the best online prices at eBay! Free shipping for many products! Island cottage solar system with 2500 watts of panels, 1kw facing southeast 1. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. REC Alpha Pure-RX: a solar panel that truly empowers, from Solar’s Most Trusted. The REC N-Peak Series is ideal for residential and smallermercial and industrial Jul 06, 2022 · On-Roof Solar Panels. producing . 62/W. 60/120-cell solar panels are also common — about 4 to 5” shorter than a 66/108-cell panel. REC: Best for warm climates. The panel features the innovative REC ‘Twin’ cell layout design, where the panel is split into two twin sections, also enabling continued energy production, even when partially shaded. High-efficiency solar panels tend to come with a higher price tag and can add a premium of over $2,000 to the total cost of your system. Like ground or roof-mounted solar panels, a solar carport converts the energy of photons (light particles) into. 4 / Enphase® IQ8X-BAT. REC395TP2SM72. Low wholesale pricing on the latest REC315NP 315W N-Peak Mono split-cell solar panel. $1,999. insulated torque screwdriver. This allows solar arrays to be tilted at an optimal angle. Schauen wir uns das Feedback von Websites aus Übersee an (Stand: Q2 2019): "Ich würde Longi jederzeit nochmal auf meinem Dach installieren. produced in our north american factories, the heliene 72 m is manufactured to international quality. 2. $35,139. Trina 330 Watt Poly Solar Panel: Price: Rs Products search. Find many great new & used options and get the best deals for Rec Solar Panel 330W Or Similar Pallet Of 23 I330x23-Total 7,590W at the best online prices at eBay! Free shipping for many products!SunPower sells some of the most efficient solar panels on the market, with an average efficiency between 20. Introducing the REC400NP3, a premium n-type mono solar panel from the REC N-Peak 3 Series. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Bluetti's whole-home battery, the EP900 Home Battery Backup, is a solid option if you're looking for power and modularity. You might notice that solar panels come in different sizes. REC Solar 330 Watt N-PEAK Monocrystalline ModuleThe REC N-Peak Series are premium n-type mono solar panels using REC’s proven half-cut cell technology. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Solar Panel, Solar PV Module , Solar DC System High Efficiency 330W 320W 310W 300W Mono Solar PD582odz3chl Webcovered by a low-iron content, high-transmission pv solar front glass, each of the 60 monocrystalline cells measures 156 mm x 156 mm. Enphase IQ 7 Micro ™ and Enphase IQ 7+ Micr o ™ dramatically simplify the installation pr ocess while . Solar panels that face south generate lots of power, with the bulk of it produced around midday. Solar Power Supplies; Solar Panels & Kits; Share | Add to Watchlist. REC N-PEAK. This means that the company has complete control of the production of all parts and the final quality of the panel. by Emily Kerr. $309. Their response has been to make panels less affordable. MC4. 20. $1,442. Base price includes choice of ProSolar GroundTrac or IronRidge Ground Mounting System. A 9BB cell 200-watt solar panel can output about 410 kWh of electricity annually. NOW. As of November 2023, the average solar panel cost in Virginia is $3. REC Alpha Pure-RX: a solar panel that truly empowers, from Solar’s Most Trusted. Tesla offers purchasing options for inclusion with a solar panel or roofing system or as a standalone purchase. N-Peak Series Solar Panel Datasheet. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. The panels will go on my A-frame roof, which is super steep, 24/12 pitch (20ft rise over 10ft span. 23x Rec 330W Mono Crystalline Solar panels. 6 Volts Voc: 41. 1 2 3. If you would prefer a more detailed explanation of solar. And it took about 46 million metric tons of solar panels to. Contact us for REC Alpha solar panel systems larger than 15 KW. On a cost-per-watt ($/W) basis, that's about $2. 3000W 12V Pure Sine Wave Inverter Charger w/ LCD Display. The “photovoltaic effect” is the mechanism by which solar panels harness the sun’s energy to generate electricity. Solar technology has undoubtedly improved in recent years; solar panels today. N-Peak Series Solar Panel Datasheet. Q Cells is one of the oldest and most respected solar power companies and one that has ramped up production in the U. Similarly, the homeowner should establish whose responsibility it is to properly maintain and repair. Authorized A+ BBB rated REC supplier. 18. 20. 25. High-efficiency solar panels tend to come with a higher price tag and can add a premium of over $2,000 to the total cost of your system. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 20 KW. RESIDENTIAL SOLAR SYSTEMS. The REC N-Peak 2 Series are premium n-type mono solar panels using REC’s proven half-cut cell technology. For example, Panasonic solar, with the lowest temperature coefficient. why choos 44226589Get REC Peak 330 Watt Solar panels with the best wholesale price. 10 – $3. All Daylight Conditions, Monocrystalline, Portable. As an international pioneer in solar energy, REC Group, headquartered in Norway with operational hubs worldwide, is renowned as Solar’s Most Trusted brand. Add to Compare. The loss of power generation capacity experienced by a standard solar panel on its first exposure to light is known as Light Induced Degradation (LID). 20. Solar Panel Kit 7. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. The panel features the innovative REC ‘Twin’ cell layout design, where the panel is split into two twin sections, also enabling continued energy production, even when partially shaded. REC’s renowned product quality is supported by the lowest warranty claims rate in the industry. View All ; All Remote Off-Grid Solar Systems ; PAD & POLE MOUNT ; CLASS 1 DIV 2 - OIL & GASWith industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 3 3 0 W. The panel features the innovative REC ‘Twin’ cell layout design, where the panel is split into two twin sections, also enabling continued energy production, even when partially shaded. All Round Distributors 19 Old Pretoria Road, West acres Mbombela, Mpumalanga 1211LG Solar Module - Erfahrungen und Bewertungen. $1,549. e. 4. N-Peak Series Solar Panel Datasheet. Width (in) 39. WARRANTY UL 1703 (Fire type 2); IEC 61215, IEC 61730 IEC 62804 (PID), IEC 61701 (Salt Mist), IEC 62716 (Ammonia), ISO 9001: 2015, ISO 14001: 2004, OHSAS 18001: 2007 20 year product warranty 25 year linear power output warranty. 0. MT Solar uses steel beams for vertical supports instead of galvanized pipes for our best looking ground mount solar system. Use the EnergySage Marketplace to see how much you can save with solar. W ARRANTY! PR EMIUM MON O N-TYP E . SINO GREEN 330W REC N-Peak Solar Panel - Wholesale Price. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. At a retail vendor, such as Home Depot, you can buy a single 100W solar panel for $100 or a pack of 10 320W solar panels. However, as of 2018, less than two percent of the world’s. Trace DR1524 MSW inverter, Outback Flexmax 80 MPPT charge controller 8 Trojan L16's. The most common way to go solar for homeowners is the installation of panels on their roofs. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Note that unless you have electrical contracting experience, we recommend homeowners hire professionals to carry this out. If you want to know the number of solar panels you need to power your specific home, you can use the solar panel cost calculator. • Industry leading quality installation, workmanship, and compliance. P A CKA GING INFORMA TION. 5 GW of solar panels annually. REC Alpha REC450AA 72 450W Solar Panel . REC330NP - Black Frame - Low Price Contact us (877) 297-0014. Next, it was time to glue the strings of solar cells down to the pegboard with silicon. Specifications subject to change without notice. US$ 65. This solar panel can only ship via freight truck. Coefficient of Voltage -0. Center for Strategic and International Studies. 3 3 0 W. P. Based on our survey of 1,000 homeowners with installed solar systems, solar panels cost between $15,000 and $20,000 per home. 5 cubic foot electric fridge. 5%. While this may vary from brand to brand, it's typically the same for all residential solar panels. 4. These panels can produce power when either of their sides receives sunlight, as the backs of the cells are also exposed. Note that unless you have electrical contracting experience, we recommend homeowners hire professionals to carry this out. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 80 KW. Solar Electric Supply, Inc. Industrial Off-Grid Solar Systems . These solar installers then. Solar cells are passed under a standard light source and graded as to their output (1-10). 52. C. Silfab Solar Inc. If you're looking for powerful solar panels, look no further. POWER. WebRenogy 4pcs Solar Panel Kit 320W 24V Monocrystalline On/Off Grid for RV Boat Shed Farm Home House Rooftop Residential Commercial House，4 Pieces, UL Certified 4. 5 kilowatt (kW) solar array, it would cost you, on average, around $28,500 before the federal credit or $19,950 after the credit to install a REC solar panel system. PAGE 1. Manuals Brands REC Manuals Solar & Wind Power N-Peak REC330NP Ground-Mount Solar Panel Systems. U S A - G e r m A n y -. Last Name. Find many great new & used options and get the best deals for Rec Solar Panel 330W Or Similar Pallet Of 23 I330x23-Total 7,590W at the best online prices at eBay! Free shipping for many products!This solar panel can only ship via freight truck. 99. Specifications subject to change without notice. The REC N-Peak Series has extra support bars across the rear of the panel, greatly boosting its strength and durability, and allowing loads of up to 7000 Pa. 35 per watt of solar installed, depending on your location and the brands of solar equipment used. Building on REC's multiple award-winning innovations, the REC Alpha Pure family of solar panels empowers you to take full advantage of solar energy. BEST MONOCRYSTALLINE: Goal Zero Boulder 200 Solar Panel Briefcase. Listen. WARRANTY. ZERO LID: The loss of power generation capacity experienced by a standard solar panel on its first exposure to light is known as Light Induced Degradation (LID). Request Quote. Power modern living Get ahead of your energy needs with cutting-edge solar and home backup. NFPA 780 12. About China UBn5Uwdhv6qV WebREC Solar's N-Peak REC330NP 330W solar panel is a premium monocrystalline solar panel using REC’s proven half-cut cell technology. Find many great new & used options and get the best deals for Rec Solar Panel 320W Or Similar Quantity Of 15 I320x15-Total 4,800W at the best online prices at eBay! Free shipping for many products!Price Solar Panels Factory Price Good Quality PNG Solar Panels 320W 325W 60 Cells 330W 335W For Producing Electricity. Greentech Renewables sells Duracell Power Center +, REC Solar, SOLAR ROOF JACK Products and other solar equipment at the most competitive prices. Founded in Norway in 1996, REC employs 2,000 people and has an annual solar panel capacity of 1. e. Fit the plexiglass onto the box so that the glass rests on top of the blocks. Add to Compare. GW of solar panels annually. 04%/K Temp. 35%/K Temp. 1" All you need to know about the REC Group N-Peak REC330NP solar panel including rating, cost, efficiency, and warranty terms. This pricing does not reflect additional state or federal incentives, such as the federal solar tax credit. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Panel Solar Cell Quality - Because boats (and vans, and RVs) have a relatively confined space, maximum power output per surface area is very important. In 2023, solar panels in the U. As an international pioneer in solar energy, REC Group, headquartered in Norway with operational hubs worldwide, is renowned as Solar’s Most Trusted brand. 9. Step 2: Mount and secure the solar panels on the racking. SOLAR RESOURCES & DESIGN SERVICES. REC Group is an international pioneering solar energy company dedicated to empowering homeowners, businesses, and utilities with clean, affordable solar power in order to facilitate global energy transitions. Solar Roof + Powerwall. If you install through us, you can get an extra 5-year product warranty. 625 to $0. DELIVERY INFORMA TION. Shut off the main circuit breaker. Built-in module-level monitoring. REC Installation Manual - Alpha. 17-$0. For most homeowners in the U. With a maximum output of 400 Wp in a 132 half-cut mono format, this panel uses the industry's most advanced cell technology to capture more. After accounting for the 30% federal solar tax credit and other. Hamarosan lesz itt valami! centennial battery gc2000p. Super Strong Frame Design Promises that the workmanship and materials of the panels themselves maintain their superior quality for. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. 1 2. 3V NOCT 44°C Temp. 400W 12 Volt Complete Solar Kit with One 200Ah Deep-Cycle AGM/ Two 100Ah LiFePO4 Batteries. Installing a solar battery in your home will allow you to store excess energy produced by your panels. /Ft. Whereas many American solar companies manufacture their solar panels overseas, even those that manufacture solar panels may not source all. Systems feature the Black Frame REC N-PEAK REC330NP solar panel. Key takeaways. 6 inches for the frame, and each panel usually weighs about 42 pounds. Intention is to add 3 panels at a time, and add more simpliphi batteries as the system gets bigger. This 100 watt solar panel is also equipped with PERC cells to deliver an excellent cell efficiency of 22%. In British Columbia, solar panel systems are exempt from provincial sales tax. These systems can be purchased directly through an installer (or assembled for the DIYers) as a large. Jing. 497 sq feet available for solar panels Based on 3D modeling of roof and nearby trees $18,000 savings Estimated net savings for roof over 20 years Check my roof Area-wide solar potential Search for a city, state, or zip code to see solar potential and impact across entire geographic areas. Make Big Savings on your TNB Bills Today!SunPower 170W Solar Panel: Renogy 100W Flexible Marine Solar Panel: EcoWorthy 25W Solar Kit: NewPowa 30W Solar Kit: TopSolar Solar Kit: EcoWatch Opinion: Best Overall: Best Value: Easiest Installation: Great Budget Option: Best Starter Kit for Backup Energy: Power Output: 170 watts: 100 watts: 25 watts: 30 watts: 20 watts:. Best for RVs: Go Power! Portable Folding Solar Kit with 10 Amp Solar Controller at Amazon. 24. The main benefits are decreased power loss, improved longevity and better low-light performance. 0 Volts Imp: 9. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Texas ranges in cost from $11,140 to $15,072, with the average gross price for solar in Texas coming in at $13,106. Discontinued . is $2. 22 - 265. cost an average of $20,650 after accounting for the federal solar tax credit (more on that later). 9" x 39. REC panels and solutions are in high demand all over the world and we have strategic channels in place to meet the needs of every customer, for every installation type, of every systems size. 66 per watt. 3 3 0 W. Take control of your energy bills Get a free personalized quote. Insignia 11. GENERAL DATA. 355 W nameplate capacity. P. REC Solar Pte Ltd: Panel Model: REC330NP: Solar Panel Datasheet: Download Datasheet (REC330NP) Warranty Information: 20 Year Product Warranty (25 Year ProTrust Warranty), 25 Year Performance Warranty Download Warranty File (REC330NP) Panel Wattage: 330W: Panel Dimensions (width x height) 997mm x 1675mm: Panel NOCT: No Panel Data Available. First Solar, a solar panel manufacturer that has run a recycling program since 2005, makes cadmium telluride thin-film solar cell modules. According to First Solar, the recycling process involves shredding and milling in a hammermill. 2x SolarEdge HD Wave SE1000H-US. · solaredge hd wave genesis. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Virginia ranges in cost from $12,892 to $17,442, with the average gross price for solar in Virginia coming in at $15,167. Solar panels are installed roughly in the following order. Monocrystalline panels. Manuals Brands REC Manuals Solar & Wind Power N-Peak REC330NP Roof-Mounted Solar Panel Systems. Net Metering 3. Ordinary solar panels have a capacity of about 400W, so if you count both rooftops and solar farms, there could be as many as 2. The. Thin-film solar panels can be the best for unorthodox roof styles. The average. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Outdoor. 1. W ARRANTY. (JA Solar's warranties are actually 30 years. Installing panels in the Golden State can pay for itself and save you an average of around $34,829 after the system pays for itself, but choosing a disreputable company can mean your system ends up. All information about Solar Panel REC305TP2M. The REC N-Peak Series has extra support bars across the rear of the panel, greatly boosting its strength and durability, and allowing loads of up to 7000 Pa – far exceeding the 5400 offered by conventional panels. One advice I suggest when you search for solar panels, don't focus too much on the efficiency of the panel of how much sunlight is converted to electricity (roughly 20% on good panels). 35 / LYD38CzB5QZS WebCanadian Solar HiDM CS1H-330MS 330W Solar Panel The 330 watt CS1H-330MS solar panel features state-of-the-art High Density Mono PERC solar cells. yuan@juswinnj. 42 Table 1: REC-330-NP overview On this. Only 9 left in stock (more on the way). SOLAR COMPONENTS. 2 mm solar glass with anti-reflection surface treatment Backsheet: Highly resistant polymeric construction Frame: Anodized aluminum (black) Junction box: 3-part, 3 bypass diodes, IP67 rated in accordance with IEC 62790 Cable: 4 mm² solar cable, 1. All you need to know about the REC Group N-Peak REC330NP solar panel including rating, cost, efficiency, and warranty terms. 8%; its thinner ribbon. 99 to $495. Monocrystalline solar panels are made from a single silicon crystal, an ingot, sliced into thin wafers. Similar to comparing dollars per square foot when shopping for a home, $/W helps standardize the cost of solar by showing the cost of solar on a per watt basis. Call us now: +1 (909)2877111. P ALLET SHIPMENT DIMENSIONS. 240. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. A 5 KW system with REC would cost anywhere from $9,730 to $10,675 with the 30 percent federal tax credit for solar. 300+ Watt Solar Panels. However, according to the Solar. Suppor ted Communication Interfaces RS485, Ethernet, ZigBee (optional), Cellular. Find many great new & used options and get the best deals for Rec Solar Panel 330W Or Similar Pallet Of 23 I330x23-Total 7,590W at the best online prices at eBay! Free shipping for many products! With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Anker Solar Generator 555 (PowerHouse 1024Wh with 2*100W Solar Panels) $1,499. Our 200W 9BB solar panel can achieve a conversion of up to 22. 05. 3. REC N-PEAK. While this may vary from brand to brand, it's typically the same for all residential solar panels. We have a great online selection at the lowest prices with Fast & Free shipping on many items! 4 product ratings - ECO 100W 200W Watt Solar Panel Kit with 30A LCD Controller For RV Camping Marine. REC SOLAR PANEL 330W Or Similar Pallet Of 23 I330x23-Total 7,590W - EUR 6. Height (in) 1. 24. producing . 3 kVA Grid Tie Solar inverter (Single / Three Phase) 10 nos Modules of 320Wp each. 33 Amps. • SolarEdge HD Wave Genesis. 99 to. 52. As of November 2023, the average solar panel cost in Wesley Chapel, FL is $2. $480. 41/W. 0 W: Panel PTC Rating: TBA: Watts per Sq. However, some solar panel systems can run more than $35,000. Check 330 w cost near Melbourne, Sydney, Adelaide, Perth, Brisbane across Australia. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. Black Frame |. 5 GW of solar panels annually. With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business. They also provide backup power in case of grid outages or. , a proud REC Authorized Distributor, offers an extensive range of REC solar panels, including the latest premium N-Peak 3 Series and Alpha Pure panels. Given its size and weight, Black 355 efficiency of 19. Polycrystalline solar panels can be the most cost-effective. Manuals Brands REC Manuals Solar & Wind Power N-Peak REC330NP Roof-Mounted Solar Panel Systems. com - Solarquotes. Outdoor and indoor installation. Q CELLS: Most chosen by installers. 600 Watt 24VDC 198Ahr Class 1 Division 2 Solar System. À VENDRE! ebay template Products Description About Us Our Products Shipping & Refund 325631945702Panels for your existing roof with backup protection. Both brands are known for their affordability and unwillingness to compromise on. 412ft 2. So, a 7 kilowatt (kW) solar system using premium efficiency panels might cost around $23,100, while the same system using regular efficiency panels might be closer to $19,900. A solar panel's efficiency (%) is calculated by dividing the module power rating (W), or Pmax, by the total panel area in square meters at an irradiance level of 1000W/m2 (STC). With industry-leading service and equipment, Greentech Renewables helps solar contractors install top quality solar PV systems, gain competitive advantage and grow their business.