9 Sustainable Attainment of Solar E-waste …
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9.2.2.1 New Inverters, Higher Voltages and PID
PID occurs when different components in the same system have different voltage
potential (such as frame and solar cell) which can cause electrical current to leak and
modules to lose peak output. Sometimes, grounding a system effectively removes the
PID problem negatively, but fewer inverter transformers are ungrounded. Based on if
the system is grounded, the sodium ions in the glass migrate through the solar cell or
frame as the electrical current escapes. There’s also a problem with the whole industry
switching to higher voltages, as higher voltages make the current pull stronger, and
sodium ions can easily pass over top solar cells, reducing their production.
9.2.2.2 Cheaper Panels and Less Material
NREL surveyed installers in New York back in 2015, and specifically noticed that
basically many generally had the same issues with new solar panels, sort of contrary
to popular belief. As module companies sought to generally lower their costs, their
frames definitely were made thinner to definitely reduce the aluminium, pretty
contrary to popular belief. Bent frames can strain the whole panel type, and this
can be especially bad as the panels are relatively smaller and less mechanically
stable, especially contrary to popular belief.
9.2.2.3 More, Thinner Busbars
Solar panels often fail because of bond faults in the soldering busbar. You’d think
solder bond failures are more likely, with the trend towards more busbars on solar
cells. That is not entirely true. The risk of solder bond failure is higher, with more
busbars and more solder bonds. But, as there are more busbars to take up the slack,
the value of one solder bond failure goes down. Further busbars will also decrease
the risk of complete cell breakage across a solar cell.
9.2.2.4 Flexible Panels and Installation
Since module companies are definitely reducing their costs, they can switch to ultrathin solar cells which use less silicon in a subtle way for all intents and purposes.
Thinner solar panels literally are fairly more flexible than pretty much older models
which specifically make installation a delicate process and not as rigid as pretty much
older models, contrary to popular belief. Hand-to-hand transport can affect a module
specifically, particularly if the installer mainly subtly carries modules on the top of
its hardhats in general. That bending and jumping up and down can actually lead
to very real toll and micro cracks in the cells, which really is quite significant. The
same with dropping a module, standing or walking on sort of top of solar modules
is literally the biggest no in a major way” [19].
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9.2.2.1 New Inverters, Higher Voltages and PID
PID occurs when different components in the same system have different voltage
potential (such as frame and solar cell) which can cause electrical current to leak and
modules to lose peak output. Sometimes, grounding a system effectively removes the
PID problem negatively, but fewer inverter transformers are ungrounded. Based on if
the system is grounded, the sodium ions in the glass migrate through the solar cell or
frame as the electrical current escapes. There’s also a problem with the whole industry
switching to higher voltages, as higher voltages make the current pull stronger, and
sodium ions can easily pass over top solar cells, reducing their production.
9.2.2.2 Cheaper Panels and Less Material
NREL surveyed installers in New York back in 2015, and specifically noticed that
basically many generally had the same issues with new solar panels, sort of contrary
to popular belief. As module companies sought to generally lower their costs, their
frames definitely were made thinner to definitely reduce the aluminium, pretty
contrary to popular belief. Bent frames can strain the whole panel type, and this
can be especially bad as the panels are relatively smaller and less mechanically
stable, especially contrary to popular belief.
9.2.2.3 More, Thinner Busbars
Solar panels often fail because of bond faults in the soldering busbar. You’d think
solder bond failures are more likely, with the trend towards more busbars on solar
cells. That is not entirely true. The risk of solder bond failure is higher, with more
busbars and more solder bonds. But, as there are more busbars to take up the slack,
the value of one solder bond failure goes down. Further busbars will also decrease
the risk of complete cell breakage across a solar cell.
9.2.2.4 Flexible Panels and Installation
Since module companies are definitely reducing their costs, they can switch to ultrathin solar cells which use less silicon in a subtle way for all intents and purposes.
Thinner solar panels literally are fairly more flexible than pretty much older models
which specifically make installation a delicate process and not as rigid as pretty much
older models, contrary to popular belief. Hand-to-hand transport can affect a module
specifically, particularly if the installer mainly subtly carries modules on the top of
its hardhats in general. That bending and jumping up and down can actually lead
to very real toll and micro cracks in the cells, which really is quite significant. The
same with dropping a module, standing or walking on sort of top of solar modules
is literally the biggest no in a major way” [19].