Solar panels.
See the bigger picture.

Panel efficiency matters. So does the system around it.

Explore rated output, temperature performance, roof space, shading and warranty terms. A well-matched system depends on more than a panel’s specification sheet.

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Latest buying guides

Start with the essentials. These introductory guides explain what to compare; they are not hands-on reviews of individual products.

Before you choose.

Use the same questions to make different options easier to compare.

  • Suitability: Does the product match your home, existing equipment and usage?
  • Specifications: Are you comparing equivalent measures and operating conditions?
  • Installation: What additional equipment, site preparation or professional work is needed?
  • Running costs: How might your usage, energy prices and maintenance affect the total cost?
  • Warranty: What is covered, for how long and under which conditions?

Ask suppliers to explain assumptions and provide supporting documentation. Actual performance depends on the product and its installation.