"Penetration levels" refers to the extent or degree to which something or someone has successfully entered or gained access to a particular market, industry, or group. Full definition
High penetration levels of back end products sold in both profit structure and number of policies sold. (jobhero.com)
The Study Scenario is represented by wind power penetration levels of 10 % by 2020, 20 % by 2030, and 35 % by 2050. (energy.gov)
That transformation happens when distributed solar penetration levels approach the point where the system can no longer benefit from new daytime generation. (utilitydive.com)