Altheon S.R.L.S.
An Italian development and advisory firm in renewables, based in Legnago (Verona). We structure plants for renewable energy communities (CER), power purchase agreements (PPAs) and self-consumption, and support those who hold land, energy demand or capital through to bankability. We do it on our own projects too.
Who it's for
Seven situations, seven paths. For each one, the Who it's for page sets out what is usually needed and how to begin.
What we do
We follow projects from origination to commissioning: site scouting, permitting, coordination of the engineering and construction carried out by partners, structuring how the energy is sold. The diagram separates what we do from what we coordinate.
Altheon carries out development and coordinates the partners who build and run the plant. It does not build with its own means, does not advance capital and does not take on the role of Referent (Soggetto Referente).
| Phase 1Origination and development | Phase 2Permitting and grid connection | Phase 3Construction | Phase 4Operation and monetisation | |
|---|---|---|---|---|
| Altheon | Carries out Site scouting, landowner agreements, yield and financial model, deal structure (PPA term sheet or CER structure). | Carries out Permitting: documents, dealings with the authorities, timelines. Grid connection request through to the general minimum technical solution (STMG) from Terna or the distribution operator. | Coordinates Detailed design, supply and construction entrusted to partners. Supports the project owner on EPC and supply contracts and in tracking time, cost and progress. | Coordinates The operation and maintenance (O&M) provider: production data and contractual indicators. Supports the plant owner in selling the energy. Where there is a CER, sets up its allocation rules with partner lawyers. |
| Delivery partners | Legal and technical professionals, brought in when needed. | Licensed design firm: design, technical filings, grid studies. | Design firm: detailed design and site supervision (direzione lavori). EPC or general contractor: construction. Suppliers of modules, inverters and components. | O&M provider: operation and maintenance. |
| Owner and capital | Site owner: land or roof, under surface rights or a lease. Offtaker: the buyer of the energy. | Project owner: approves the design and the connection solution. | Project owner: signs the EPC and supply contracts. Investor and lender: the capital to build. | Plant owner: sells the energy. Offtaker: buys it, for example under a PPA. Investor and lender: periodic reporting. Where there is a CER, the Referent (Soggetto Referente), the GSE's contractual counterparty. |
Phase 1Origination and development
Carries out
Site scouting, landowner agreements, yield and financial model, deal structure (PPA term sheet or CER structure).
Phase 2Permitting and grid connection
Carries out
Permitting: documents, dealings with the authorities, timelines. Grid connection request through to the general minimum technical solution (STMG) from Terna or the distribution operator.
Phase 3Construction
Coordinates
Detailed design, supply and construction entrusted to partners. Supports the project owner on EPC and supply contracts and in tracking time, cost and progress.
Phase 4Operation and monetisation
Coordinates
The operation and maintenance (O&M) provider: production data and contractual indicators. Supports the plant owner in selling the energy. Where there is a CER, sets up its allocation rules with partner lawyers.
The map reads by columns, from the first phase to the last, and by rows, one lane per party: Altheon, the delivery partners, the project owner and the providers of capital.
In Altheon's lane a line runs across the four phases. It is solid, with filled nodes, in phases 1 and 2, where Altheon carries out the work; it is dashed, with hollow nodes, in phases 3 and 4, where Altheon coordinates work done by partners. At each phase a thread drops from the line to the node in the delivery partners' lane.
The table gives, phase by phase and lane by lane, the same information as the drawing.
Write through the form or by email and set out the context: a site, an energy need, a stalled project, an operating plant. We reply within two business days.
If the topic fits, a 30-minute call is enough to understand the context and whether working together makes sense.
If the conditions are there, a working hypothesis for the deal structure or the scope of work: what to do and in which order. If we are not the right fit, we say so.
We carry out the agreed activities and bring in the partners each discipline needs.
Projects
Anonymised summaries of advisory and due diligence engagements. We publish little, and only after clearance.
Selected engagement · CER architecture
Designing the governance, tariff model and monitoring stack for a Comunità Energetica anchored by a manufacturing plant operating on a three-shift cycle.
Selected engagement · Investor DD
Consolidated technical, regulatory and O&M diligence across a multi-site PV portfolio, supporting an institutional buyer’s final bid and closing conditions.
Tools
Early access
AIP Engine reads data rooms (PDFs, spreadsheets, scans) and produces a structured dossier, the Dossier Digitale Strutturato (DDS): a machine-readable view that investors, lenders and asset managers can analyse and compare across projects.
Built for our acquisition-side due diligence work. Now in early access for investors and asset managers active in Italian solar.
Launch phase
Member registry, hourly meter-data import, recalculation of shared energy and of the premium tariff (TIP), allocation across members, one PDF statement each.
Built by Altheon for those who run a CER, it is a separate product with its own site, cerops.altheon.it. It is in its launch phase, with invitation-only access.
Resources
Three values set by the rules and tariffs in force for energy communities, each with its source. The rest is in the resources: frequently asked questions, glossary, indicative calculator.
20 years
Source: Italian Ministry of Environment and Energy Security (MASE), MASE Ministerial Decree no. 414 of 7 December 2023 (CACER Decree), signed text, art. 1(2) and art. 4(1), (3) and (7). Verified on 2 October 2026.
1 MW
Source: Italian Ministry of Environment and Energy Security (MASE), MASE Ministerial Decree no. 414 of 7 December 2023 (CACER Decree), signed text, art. 3(2)(a). Verified on 2 October 2026.
11.90 €/MWh
Sources
Insights
Short reads on permitting, PPAs, CERs and the Italian market. Written for people deciding on a real project.
Remote self-consumption in Italy, 2026: grid or direct line, primary substation and bidding zone, GSE premium tariff, new or existing plants, PPAs, tax relief.
Who can act as soggetto referente of an Italian energy community under the GSE rules, what they sign, and which monthly work can go to an external manager.
A study for the European Commission finds that demand binds Italy's market for long-term contracts (PPAs): the gap widens from about 20 to about 80 TWh by 2035.
Page last reviewed: .
Get in touch
Write to Michele. We reply within two business days.
