Software · launch phase
CER-Ops is the software Altheon built for those who run an Italian renewable energy community (CER, comunità energetica rinnovabile): meter data import, recalculation of shared energy and of the premium tariff (TIP), allocation among members, monthly statements. It has its own site, cerops.altheon.it, and is in its launch phase, with invitation-only access.
Fact sheet
Who it is for
The monthly work of a CER starts once the GSE (Gestore dei Servizi Energetici, the Italian energy services operator) has admitted the configuration to the service. CER-Ops is built for whoever does that work.
The referent is the GSE's contractual counterparty. In a CER it is the community itself, which may give a mandate without representation, lasting one year and revocable at any time.
The final customers of the configuration appoint it through a private-law contract. It is the party that allocates the shared energy.
To see, before the community is set up, which data are needed every month and how the allocation is reached.
Sources
The cycle
Once the configuration is admitted to the service, the GSE computes hourly and monthly shared energy and pays the premium tariff through an estimated monthly advance and, from the following year, a true-up on metered data. The community allocates the incentive under its statute or the contract among its members. CER-Ops rebuilds the values to check them against the GSE's and prepares the allocation.
Sources
In CER-Ops the cycle has five steps.
On the community registry (members, connection points or POD, allocation shares, capacities), hourly readings are loaded from CSV or Excel files.
Before the calculation: missing PODs, metering gaps, anomalous values.
Two schemes: pro-quota, or in proportion to each consumer's shared energy.
One PDF statement per member every month; a dashboard with production, consumption, shared energy and allocated incentive.
Regulatory basis
These are the rules the monthly cycle rests on, in the text in force on 2 October 2026. CER-Ops recalculates shared energy and premium tariff to check them and prepares the allocation: for incentives, the values computed by the GSE are the ones that count.
Implements Directive (EU) 2018/2001 (RED II), as amended by Directive (EU) 2023/2413 (RED III). Article 31 governs renewable energy communities; article 32 requires the final customers to appoint, by private-law contract, the party responsible for allocating shared energy.
Sources
The Integrated Text on Distributed Self-Consumption (TIAD) governs the configurations and defines shared energy: in each hour, the lower of the energy fed in and the energy withdrawn for sharing purposes, within the same market zone. The GSE computes it hourly and monthly. Since 24 January 2026, Legislative Decree 199/2021 (art. 2) refers sharing to settlement periods of up to one hour; ARERA is aligning its rules through resolution 223/2026/R/eel.
Sources
Sets the incentives for renewable energy sharing configurations (CACER, configurazioni di autoconsumo per la condivisione dell'energia rinnovabile): the premium tariff on shared energy, for twenty years, and capital grants from the National Recovery and Resilience Plan (PNRR).
Source: Italian Ministry of Environment and Energy Security (MASE), MASE Ministerial Decree no. 414 of 7 December 2023 (CACER Decree), signed text, arts. 1, 2 and 4. Verified on 2 October 2026.
They govern access to the distributed self-consumption service, the admission decision, the payment of the premium tariff through a monthly advance and a yearly true-up, and the referent's annual reporting.
Source: GSE (Italian energy services operator), CACER Decree and TIAD: Operating rules for access to the distributed self-consumption service and to the PNRR grant (Annex 1), version of 16 July 2025, Part II, sections 2.1.3 and 2.2.2. Verified on 2 October 2026.
Amends the PNRR grants of Decree 414/2023: it extends them to CERs and collective self-consumption systems in municipalities with fewer than 50,000 inhabitants and raises the advance from 10% to 30% of the grant.
Source: Italian Ministry of Environment and Energy Security (MASE), MASE Ministerial Decree no. 127 of 16 May 2025 (amendments to Ministerial Decree no. 414 of 7 December 2023), art. 1. Verified on 2 October 2026.
Sets up a PNRR grant programme for CERs and collective self-consumption, run by the GSE (the CACER Facility).
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Interface
An illustrative interface on the CER Demo: four fictitious members, one photovoltaic plant and a month generated from a fixed seed. It shows kWh and shares, no euro amounts. The tabs follow the steps of the cycle described above.
Illustrative interface with demonstration data, not referring to any real CER
Month dashboard
June, a 30-day demonstration month
| Member | Type | Connection point | Pro-quota share |
|---|---|---|---|
| Local authority | Local public administration | DEMO-01 | 35% |
| Business | Small or medium-sized enterprise | DEMO-02 | 35% |
| Household A | Natural person | DEMO-03 | 15% |
| Household B | Natural person | DEMO-04 | 15% |
Plant: 60 kW photovoltaic, connection point DEMO-P1, available to the CER Demo. All points are in the area of the same primary substation.
Hourly readings of the month, imported from files. Before the calculation the checks cover the points in the registry, missing hours and out-of-range values.
| Point | Holder | Hours expected | Hours received | Hours missing | Out-of-range values | Outcome |
|---|---|---|---|---|---|---|
| DEMO-P1 | CER plant | 720 | 720 | 0 | 0 | Ready for calculation |
| DEMO-01 | Local authority | 720 | 720 | 0 | 0 | Ready for calculation |
| DEMO-02 | Business | 720 | 720 | 0 | 0 | Ready for calculation |
| DEMO-03 | Household A | 720 | 720 | 0 | 0 | Ready for calculation |
| DEMO-04 | Household B | 720 | 720 | 0 | 0 | Ready for calculation |
| Member | Withdrawn in the month (kWh) | Shared on withdrawals (kWh) | Allocation share |
|---|---|---|---|
| Local authority | 3,324 | 2,457 | 35.0% |
| Business | 4,488 | 3,226 | 35.0% |
| Household A | 458 | 231 | 15.0% |
| Household B | 651 | 400 | 15.0% |
| Total | 8,921 | 6,314 | 100.0% |
The share applies to the incentive to be allocated among the members. The demo computes no amounts.
In the product the statement is a monthly PDF for each member. Here, a preview without amounts.
How the data are made
The CER Demo does not exist. The hourly production and consumption profiles are illustrative: they are neither measurements nor estimates and refer to no real site. Shared energy follows the ARERA rules in force (TIAD): in each hour, the lower of the energy fed in and the energy withdrawn. For incentives, the values computed by the GSE are the ones that count.
Source: ARERA (Italian energy regulator), TIAD, Integrated Text on Distributed Self-Consumption: Annex A to resolution 727/2022/R/eel, as supplemented and amended by resolution 15/2024/R/eel (version of 30 January 2024), art. 1(t) and art. 6.1. Verified on 2 October 2026.
Access
The product and access to it go through cerops.altheon.it. If you represent a public body and want to promote a CER, write to Altheon. We reply within two business days.
