Whereas this initially had a chilling impact on the Polish residential photo voltaic market, the transition from internet metering to internet billing additionally resulted in constructive modifications, akin to higher sizing of rooftop PV programs and better charge of self-consumption, says Instytut Energetyki Odnawialnej (IEO), a Polish analysis physique.
Early April will mark a yr for the reason that photo voltaic sector in Poland underwent a profound change, when new provisions have been launched for PV “micro-installations” as much as 50 kW in dimension . The brand new internet billing system replaces the online metering scheme, which has been the primary PV deployment engine within the nation since its introduction in 2016.
In response to IEO, the primary results on prosumers will be seen in final yr’s set up numbers, however the affect of the change on traders and installers just isn’t but clear. About 1.3 GW of micro-installation PV capability will likely be linked within the first quarter of 2022. About 152,000 programs have been put in with a mean energy of 8.3 kW. This equates to roughly 1,700 installations per day. After the transition to internet billing, this quantity dropped to 375 MW within the third quarter.
“The web billing system is slowing down the expansion of prosumer installations, however not as a result of it’s a dangerous resolution,” the IEO mentioned. “It is about accepting and studying new guidelines by installers and prosumers, in addition to understanding them by banks and financing establishments.”
It additionally factors to the constructive results of the online charging regime, together with higher metering of PV installations and funding in further tools to make use of extra photo voltaic power, akin to warmth pumps and programs of battery power storage.
In response to the IEO, the brand new system of net-billing results in the next charge of self-consumption. It says that below the online billing system, with the assist of the Mój prąd (My Electrical energy) rebate program, prosumers with investments in small PV installations of 4 kW to five kW will get a greater inside charge of return (IRR) of 19% to 25%. The web-metering regime presents an IRR of 13% to 14%.
Below the outdated net-metering guidelines, homeowners of PV programs with a capability of lower than 10 kW might inject as much as 80% of their energy into the grid, whereas PV programs from 10 kW to 50 kW are allowed to feed as much as 70% of their electrical energy to the grid. Below the brand new net-billing guidelines, prosumers should put together a invoice that features the power they generate. The worth is then calculated in keeping with a particular mannequin associated to the worth of a kilowatt-hour throughout the so-called “every day buying and selling.”
Prosumers account for nearly 80% of the put in PV capability in Poland. On the finish of final yr, the variety of prosumers exceeded 1.2 million, and the overall capability of their installations amounted to greater than 9.3 GW. Because of this the typical energy of a micro-installation is 7.6 kW.
The IEO energy forecast assumes that the nation’s cumulative PV capability will stand at 20 GW in 2025. In 2030, this determine ought to attain 29 GW, together with 15 GW of prosumer energy sources, together with 4 GW of PV programs owned by companies.
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