The domestic introduction, just under two years ago, of the target model, aiming to integrate the wholesale electricity markets of all EU member states, has brought about little change in the market shares of suppliers.

Power utility PPC’s retail market share has contracted by just over 4 percent, from 66.33 percent in November, 2020, to 62.01 percent in September, 2022, a loss unequally divided between independent suppliers.

In September, 2022, PPC’s retail market share fell to 62.01 percent from 64.41 percent a month earlier, while, during the same period, the collective market share of independent suppliers increased from 35.59 percent to 37.99 percent.

During this one-month period, HERON rose to second place among the independent electricity suppliers with a market share of 6.8 percent, behind Protergia, a member of the Mytilineos group, whose market share rose to 8.65 percent in September from 7.2 percent in August.

Elpedison dropped to third place among the independent suppliers with a 6.54 percent share in September, a marginal rise from 6.49 percent in August.

NRG, which is ranked fourth among the independent suppliers, also experienced a marginal increase in its market share to 4.76 percent from 4.7 percent, as did fifth-placed Aerio Attikis, reaching 2.34 percent from 2.13 percent.

Debate, amid the energy crisis, is still going strong about the rules for consumer switches from one electricity supplier to another. An increased number of consumers are leaving behind unpaid electricity bills when switching suppliers, fresh market data has shown, prompting a supplier association to call for restrictions.