A Better Panel. A Better Warranty.
The data presented throughout this paper is intended to
clearly demonstrate that SunPower Performance panels are
designed for greater reliability over time. This laser-focus on
reliability underscores the bankability of SunPower panel
technology. SunPower technology has been recognised by
the industry’s most renowned advisors and has led to Total
S.A., the world’s 4
th
largest public energy company,
becoming its lead investor.
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Each SunPower Performance panel is manufactured with the
absolute confidence to deliver more energy and reliability
over time. The SunPower Performance panel delivers long-
term results, backed by a stronger warranty than
conventional solar (figure 14). Over the course of its 30-year
power warranty, the SunPower Performance 5 is warranted
to deliver more power than conventional panels (figure 15).
As noted previously, a 25-year product and power warranty
option is also available—enquire with your sales
representative for additional information.
In addition, SunPower Performance panels are designed to
last beyond their warranty. The expected lifetime, or ‘useful’
life, of a solar installation is defined as the time when 1% of
total panels have dropped below 70% power output. This
definition is used to ensure that a site will continue to
generate useful revenue without incurring significant
maintenance or large panel current mismatch. Earlier
versions of SunPower Performance panels, which share the
same electrical architecture of the Performance 5 bifacial
panel, have undergone a third-party review with Leidos.
Leidos found that the use of identical encapsulant and
backsheet from SunPower Maxeon interdigitated back
contact panels in conjunction with a low-stress cell
interconnection reasonably infers an expectation of a more
than 35-year useful life for SunPower Performance panels.
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