FAQ
TL;DR: Installing PV on C11 is feasible—"Yes, it is possible"—but one user saw only two C11+PV cases locally and faced high fixed-capacity charges. Plan costs and timing before switching to G11 after occupancy to smooth settlements. [Elektroda, Leon444, post #17876319]
Why it matters: This FAQ helps homeowners on a C11 construction supply install PV and transition to G11 without losing settlement benefits.
Quick Facts
- C11 often serves pre-occupancy supplies; expect significant fixed charges linked to contracted power. [Elektroda, Leon444, post #17876319]
- PV can run on C11 in practice; a PGE customer did it on an unoccupied house. [Elektroda, Leon444, post #17876319]
- Switching C11→G11: PGE reprogrammed the meter remotely; produced energy carried to the next settlement period. [Elektroda, Leon444, post #17877322]
- Prosumer rules target individuals; non‑prosumer cases may require an energy trading license. [Elektroda, retrofood, post #17876372]
- Ground‑mounted PV needs a permit; a moderator says suppliers shouldn’t deny G11 to private recipients. [Elektroda, retrofood, post #17876372]
Can I install PV under a C11 (construction) tariff during house build?
Yes. A PGE customer ran PV on a C11 connection in an unoccupied house. He also noted only two C11+PV users in his voivodeship. Expect higher fixed charges tied to contracted power on C11. Budget for this when designing your system. [Elektroda, Leon444, post #17876319]
What happens to my generated kWh when I switch from C11 to G11?
In that PGE case, the meter was reprogrammed remotely during the tariff change. Billing proceeded like a regular half‑year settlement. Generated energy moved into the next period. Consumption was settled against it under the new tariff. [Elektroda, Leon444, post #17877322]
Do I count as a prosumer on C11, or is that only for G‑tariffs?
Prosumer rules target individuals. A moderator notes those rules apply when you are a prosumer. If you are not, you may need a trading license. Confirm status before commissioning PV. [Elektroda, retrofood, post #17876372]
Should I switch to G11 before installing the PV system?
A moderator advises switching to G11 before installing PV. Roof mounting ties the system to the building. He adds, "no energy supplier has no right to deny the G11 tariff to a private recipient." Ask for G11 once the building exists. [Elektroda, retrofood, post #17876372]
Is C11 only for businesses, or also for houses under construction?
No. Users report C11 also serves single‑family houses before occupancy. This resembles the former temporary construction supply. That does not make you a business customer. [Elektroda, Leon444, post #17880509]
How expensive are the fixed charges on C11?
Expect significant fixed costs for contracted power on C11. One user called them "huge charges." Right‑size contracted power during construction to contain cost. [Elektroda, Leon444, post #17876319]
Do I need a new meter to change from C11 to G11?
In one PGE case, no physical meter swap was required. The utility changed the configuration remotely. The owner then saw settlement continue on the new tariff. [Elektroda, Leon444, post #17877322]
Will my PV surplus transfer when I change tariffs?
Yes, in the reported PGE case. The produced energy carried into the next billing period after the change. The settlement then netted consumption under the new tariff. This matched the half‑year cycle. [Elektroda, Leon444, post #17877322]
What if I plan a ground‑mounted array during construction?
Ground‑mounted PV requires a permit, according to a moderator. Roof‑mounted systems avoid that extra approval. Plan early to prevent construction delays. [Elektroda, retrofood, post #17876372]
How do I switch from C11 to G11 and keep my PV credits?
Use this sequence.
- Request a change from C11 to G11 with your DSO.
- Provide occupancy or other required building documents.
- Confirm remote meter reprogramming and that surplus carries to the next period.
In one PGE case, this process occurred remotely. [Elektroda, Leon444, post #17877322]
Can I get G11 during construction via a garage or outbuilding?
Ask your DSO which building categories qualify for G‑tariffs. A user reported getting G11 for a summer house without extra formalities. He suggested asking about a garage or outbuilding category. [Elektroda, ACCel, post #17875235]
Does the DSO influence switching speed or process?
Yes. A PGE user reported his meter was reprogrammed remotely during the change. Contact your BOK to confirm your utility’s steps and timelines. [Elektroda, Leon444, post #17877322]
Will I lose energy credits if I move to G12W instead of G11?
In a reported change to G11, produced energy was carried into the next period. Ask your DSO how they handle time‑of‑use settlement under G12W before switching. [Elektroda, Leon444, post #17877322]
but this probably affects everyone and has nothing to do with PV.
