The scope for 72-cell p-mono options to push towards 400W (STC) during 2019-2020 is entirely feasible. Image: ABB
Yesterday on PV-Tech, we explained what to expect from p-type multi c-Si modules during 2017 and 2018, across various p-multi cell configurations. Today, we show a similar analysis, but for p-type mono.
With market-share gains expected in the next 2-3 years from p-type mono, knowing what can be expected from 60-cell and 72-cell designs is perhaps more appropriate in terms of benchmarking undertaken by n-type and thin-film competitors.
The methodology used to generate the graphics was explained in the blog yesterday. The full analysis is adapted from the January 2017 release of our PV Manufacturing & Technology Quarterly report. The themes are set to be discussed at the forthcoming PV CellTech 2017 event in Penang, Malaysia, 14-15 March 2017.
Greater variation in p-mono module power ratings
Compared to yesterday’s analysis and discussion on p-type multi c-Si efficiencies and power ratings, there is a greater delta between the lowest powers today (3BB and 4BB standard p-type mono cells using M0 size wafers) and the highest powers (4BB and 5BB PERC on M2 size wafers).
The following three graphics compare these two groupings for p-type mono modules, noting that there are other p-type options occupying the middle-ground.
The first graphic shows 60-cell average panel powers by year, with the average ratings from the lead variant (5MM PERC on M2) close to 310W (Wp-dc, STC) next year.
60-cell p-type mono modules were previously the mainstay of small rooftop installations, with 48-cell variants still supplied to certain end-markets such as Japan.
The next graphic shows 72-cell power ratings, where the 5BB PERC on M2 wafer version is forecast to be supplied with average powers approaching 370W (Wp-dc, STC) next year.
72-cell p-type mono modules are less common in the market today, compared to the industry-standard 72-cell p-type multi that dominate the utility scale markets in some of the leading end-markets, but may see greater adoption going into 2017.
The final graphic shows the above 72-cell variants, but at the elevated temperature of 70 degrees. Here the highest performing panels are operating with average levels close to 300W (Wp-dc).
Utility scale benchmarking from 72-cell p-mono modules should be using average power levels close to 300Wp-dc in 2017.
In addition to the higher power levels coming from M2 wafers, and the increasing combination of 4-5BB design using the supply of this larger wafer size, efficiency gains for PERC on mono are more incremental when compared to p-multi module equivalents. This is not uncommon for advanced cell design on mono, compared to multi.
The scope for 72-cell p-mono options to push towards 400W (STC) during 2019-2020 is entirely feasible, if attention returns to the front-surface and selective emitter options.
Company-specific module technology and power ratings are included in the PV Manufacturing & Technology Quarterly report. More comparative data (including n-type and thin-film powers) will be presented at the forthcoming PV CellTech 2017 event in Penang, Malaysia, 14-15 March 2017
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