Review of Grape 265W Solar Panel

Categories: Review and Solar PV Panels.

There are some things you might keep in mind if are you looking at Grape Solar panels for your home? 

How To Get Free Solar Power

Source: Grape Solar Website

Grape Solar offer solar solutions using monocrystalline, polycrystalline and thin film solar technology. 

They offer solar modules for grid-tied applications and also make lightweight panels for off-grid mobile settings.

The Grape Solar company has been around since 2009. They’ve been set up in Eugene, Oregon USA.

The review is about 265W Solar Polycrystalline Panels that sell as a kit in packs of 4. These solar cells are polycrystalline type with 265 Watts output per panel and a solar efficiency of 16.21%.

Grape Solar have these Benefits:

  • High Efficiency Polycrystalline Photovoltaic solar cells with quality silicon material
  • High module conversion efficiency and long term output stability and reliability
  • Unique frame design with strong mechanical strength for high wind load and snow load
  • High transmittance, low iron tempered glass with enhanced stiffness and impact resistance
  • Glass encapsulation with multilayer sheet lamination to provide long-life and enhanced cell performance
  • Rigorous quality control to meet the highest international standards
  • Outstanding electrical performance under high temperature and weak light environments
  • Built in blocking diodes prevent reverse current flow in shading
  • 10 year limited product warranty on materials and workmanship.
  • Industry standard warranty on Grape Solar panels for power output >80% after 25 years
  • The Grape Solar company has been around since 2009 which for some consumers is a short history.

Applications for 265W Grape Solar

  • Large and small on-grid solar power stations
  • Large and small off-grid installations
  • Commercial/industrial building rooftop and ground systems
  • Residential rooftop and ground systems

265W Grape Solar Panel Quality

Certifications - Model GS-P60-265-Fab2

  • UL1703, CEC Listed, MCS and CE
  • SO 9001: 2008: Quality management systems, ISO 14001: 2004: Environmental management systems
  • BS OHSAS 18001: 2007: Occupational health and safety management systems
  • Type 1 Fire Classification

265W Grape Solar Specifications

Other Performance Data

  • No. of Cells 60
  • Weight 18.2Kg./ 40.9lbs.
  • Power Tolerance: 0%, +5%
  • Operating Temperature: -40 ºC to +85 ºC
  • Max Series Fuse Rating: 15A
  • Normal Operating Cell Temperature (NOCT): 45 ºC
  • Max System Voltage (IEC/UL) - 1000V
  • Maximum Power Pmax  265 W* (0%, +5%)
  • Listed PTC Power  239.4 W
  • Voltage at Maximum Power Point Vmpp  30.96 V
  • Current at Maximum Power Point Impp  8.56 A
  • Open Circuit Voltage Voc  38.14 V
  • Short Circuit Current Isc  9.1 A
  • Module Efficiency (%) 16.21%
  • Temperature Coefficient of Voc  -0.33% /ºC
  • Temperature Coefficient of Isc -  +0.058% /ºC
  • Temperature Coefficient of Pmax -  -0.43% /ºC

What People Had To Say

We looked at what people had to say about their Grape Solar purchase

No Grape Solar customers shared positive or negative experiences about their installed panels. Suffice to say we saw no negative reviews. 

Customers were either impressed by a good system and didn't wish to list small problems. No installation comments listed might mean customers were not sufficiently motivated to give feedback. It’s worth saying that no comments of problems to report could be a good thing.

Remember that your particular house or roof orientations may not be at optimum. That means the installed array size may need to be larger to accommodate the household load.


The PV system serves house electrical loads before the solar system output goes to the grid.


The Grape Solar panels look like most other on the roof. The warranties offered are industry standard. This investment at the price listed would able to offer savings return. With 265W Grape Solar there will be little to worry about if sized correctly. You'll be making few if any lifestyle adjustments.

Few customers made feedback about their experience with their panels. Disappointment from other brands' customers reflected their experience of not installing enough capacity. That meant energy savings were lower than monthly utility bills.

Our Recommendation

You may have ample roof space on your home.

Are you willing to sacrifice lower return-on-investment with a low efficiency array.

Grape Solar panels will be a cost efficient choice if you want a medium efficiency array. If you can fit enough panels on the roof you will meet your power needs. They come at a quite reasonable price per panel. Check that the installed price remains lower than equivalent or higher efficiency panels.

Be sure to compare the lifetime value of Grape Solar panels against other brands before you buy.

There are many Solar manufacturers’ panels available on the market. The Grape Solar panels stands out on price and it has fairly good test efficiency. This particular 60 cell Poly panel is a steady robust unit. It features the same sort of specification as others costing a lot more money.

The 265W Grape Solar panels are a good buying option.

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