Manufacturer review
Solarwatt panels, read off the datasheets
Solarwatt has 44 modules in the database, from 180 to 460 Wp.
Everything below is computed from those 44 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Solarwatt does not publish a figure, it is left out of the average rather than assumed.
Panels
44
models in the database
Average efficiency
20.6%
across the catalogue
Best efficiency
23.0%
their strongest module
Power range
180-460 Wp
smallest to largest
Bifacial share
50%
22 dual-sided models
Average warranty
29 years
guaranteed output term
01
The top of the range
The leaders of Solarwatt's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.
Most efficient
1
SOLARWATT Panel vision M 5.0 460 Wp
Monocrystalline bifacial
460 Wp
23.0%
2
SOLARWATT Panel vision M 5.0 455 Wp
Monocrystalline bifacial
455 Wp
22.8%
3
SOLARWATT Panel vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
4
SOLARWATT Panel vision M 5.0 450Wp
Monocrystalline bifacial
450 Wp
22.5%
5
vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
Highest power
1
SOLARWATT Panel vision M 5.0 460 Wp
Monocrystalline bifacial
23.0%
460 Wp
2
SOLARWATT Panel vision M 5.0 455 Wp
Monocrystalline bifacial
22.8%
455 Wp
3
SOLARWATT Panel vision M 5.0 450 Wp
Monocrystalline bifacial
22.5%
450 Wp
4
SOLARWATT Panel vision M 5.0 450Wp
Monocrystalline bifacial
22.5%
450 Wp
5
vision M 5.0 450 Wp
Monocrystalline bifacial
22.5%
450 Wp
02
By what the array is for
Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.
For a house roof
1
SOLARWATT Panel vision M 5.0 460 Wp
Monocrystalline bifacial
460 Wp
23.0%
2
SOLARWATT Panel vision M 5.0 455 Wp
Monocrystalline bifacial
455 Wp
22.8%
3
SOLARWATT Panel vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
4
SOLARWATT Panel vision M 5.0 450Wp
Monocrystalline bifacial
450 Wp
22.5%
5
vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
For a ground mount
1
SOLARWATT Panel vision M 5.0 460 Wp
Monocrystalline bifacial
460 Wp
23.0%
2
SOLARWATT Panel vision M 5.0 455 Wp
Monocrystalline bifacial
455 Wp
22.8%
3
SOLARWATT Panel vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
4
SOLARWATT Panel vision M 5.0 450Wp
Monocrystalline bifacial
450 Wp
22.5%
5
vision M 5.0 450 Wp
Monocrystalline bifacial
450 Wp
22.5%
03
Cell technology across the market
What the catalogue is made of
Shares are of the 44 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.
Cell technology
PERC accounts for 77.3% of the catalogue - 34 of 44 modules.
Efficiency spread
04
Strengths and gaps
Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.
What this catalogue is good at
- High-efficiency panels available (up to 23.0%)
- Strong bifacial lineup - 50% of portfolio supports dual-sided generation
- Strong warranty coverage averaging 29 years
- Established manufacturer with 33+ years of experience
Where it is thin
- Average efficiency of 20.6% is below the industry leading edge
- No high-power panels (500W+) available for commercial use
05
In short
Solarwatt: Solarwatt is an industry leader in efficiency, offering 44 panels suitable for residential installations. With an average efficiency of 20.6% and top models reaching 23.0%, their panels deliver competitive performance.
Common questions
Is Solarwatt a good solar panel manufacturer?
Solarwatt offers 44 solar panel models with an average efficiency of 20.6%. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Solarwatt make?
Solarwatt manufactures panels ranging from 180W to 460W, covering both residential and commercial applications. Their portfolio includes PERC (77%), TOPCon (23%) cell technologies.
How efficient are Solarwatt solar panels?
Solarwatt panels have an average efficiency of 20.6%, with their most efficient model reaching 23.0%. This puts them among the industry leaders in the current market.
Does Solarwatt make bifacial solar panels?
Yes, Solarwatt offers 22 bifacial panels, representing 50% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Solarwatt offer on their solar panels?
Solarwatt panels come with an average performance warranty of 29 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.
Are Solarwatt panels good for residential use?
Solarwatt offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.
Does Solarwatt use TOPCon technology?
Yes, Solarwatt has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.
06
Build your own
Compared with
A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.
