If you are thinking that means not all panels are the same you are correct.
Cec rating of solar panels.
The california energy commission adopted building standards that require solar photovoltaic systems starting in 2020.
Why is that term cec listed so important for renewable energy power generation buyers here in the us.
Generally if no ptc value is listed in the specifications for a photovoltaic panel you can expect it to be about 10 to 15 percent less efficient than the stc rating.
As we already mentioned all the panels above are composed of 60 solar cells.
But even if you re not in california this rating is closer still to real world production.
The cec developed the solar equipment lists under senate bill 1 murray chapter 132 statutes of 2006 establishing criteria and standards for solar incentive programs under the california solar initiative such as the new solar home partnership program nshp.
If you are shopping for solar power or small scale wind turbines in the usa you have probably heard of a term called cec listed.
Factors that affect solar panel efficiency.
Low med power rating w listed residential 60 cell panels only.
Online resource center documents and training information to help building communities and enforcement agencies comply with the building energy efficiency standards.
Solar panel efficiency typically hovers around 15 to 18.
Most non sunpower panels drop 8 10 and the cec data shows panels that drop as much as 16 5 under ptc testing or to put it another way the panel s ptc rating is 83 5 of its stc rating.
Therefore it can still be helpful in your comparison shopping and that s why we re telling you about it.
The hi mo3 and hi mo4 mono perc range of panels from longi solar use the common 120 split cell format and are becoming one of the more popular high efficiency low cost panels on the market.
These inverters see an incredibly high 98 efficiency cec rating explained below or 98 7 max rating.
Although ptc ratings offer a realistic view of photovoltaic output they don t indicate exact energy production.
See the bottom of this page for the approved module list for the victorian solar homes program.
Most efficient solar inverter let s start off by naming the most efficient inverter we are aware of.
As of september 2017 this distinction goes to sma s sunny boy inverter for larger residential installations 9kw to 11kw.
The more efficient your solar cells are the more power your solar panels produce.
Well the acronym cec stands for california energy commission.