# LLM Context
URL: https://weeg.it/notizie/revamping-e-repowering-fotovoltaico-conto-energia/

# Photovoltaic Revamping and Repowering: How to Double the Production of a Conto Energia System

> Industrial photovoltaic systems installed between 2007 and 2013 are now affected by performance degradation and technological obsolescence. The page explains how revamping and repowering can increase output, preserve existing Conto Energia incentives under the stated GSE rules, and modernize systems with current modules and inverters.

## Page details

- **Source language:** Italian
- **Content type:** News article
- **Original title:** Revamping e Repowering Fotovoltaico: come raddoppiare la produzione del tuo impianto in Conto Energia
- **English title:** Photovoltaic Revamping and Repowering: How to Double the Production of a Conto Energia System
- **Source URL:** https://weeg.it/notizie/revamping-e-repowering-fotovoltaico-conto-energia/
- **Summary:** The article describes the aging of industrial photovoltaic systems installed during the Conto Energia period, compares older and current photovoltaic technologies, outlines the stated GSE framework for component replacement and system power increases, and presents White Energy Group's assessment, financing, engineering, and administrative support.

## Aging industrial photovoltaic systems

Many Italian manufacturing facilities have photovoltaic systems installed during the Conto Energia period from 2007 to 2013. According to the page, systems that have been operating for more than 12-15 years face two structural issues:

1. **Performance degradation:** first-generation silicon modules are described as losing about 0.7%-1% of output per year. A system installed in 2010 is stated to produce around 10%-15% less than its original potential today.
2. **Technological obsolescence:** older inverters are described as having significant conversion losses, while historical panels had average efficiency around 13%-15%.

The page argues that continuing to operate an obsolete system without intervention means giving up energy that the same roof area could generate with newer technology.

## Technology comparison

The article highlights N-Type TOPCon modules as an example of newer technology and compares a typical Conto Energia-era system with a current industrial system.

| Technical parameter | Conto Energia system (2008-2012) | Current industrial system | Stated change |
| --- | --- | --- | --- |
| Module efficiency | 13%-15% | 22%-23.5% | +50% energy density |
| Power per module | 220-250 Wp | 570-650 Wp | More than double the power |
| Specific power per m² | ~140 Wp/m² | ~240 Wp/m² | +68% power on the same surface |
| Inverter efficiency | 92%-94% | >98.5% | Lower energy losses |

The page links the stated energy-density comparison to the [Fraunhofer ISE Photovoltaics Report](https://www.ise.fraunhofer.de/en/publications/studies/photovoltaics-report.html).

### Practical example

The article gives the following example:

- A 100 kWp system installed in 2010 occupies about 700 m² of roof area.
- Its current annual production is stated as about 100,000 kWh.
- After revamping and repowering on the same surface, installed capacity is stated to be able to rise to 160 kWp.
- Annual production is stated to exceed 170,000 kWh, corresponding to an increase of about 70%.

## GSE framework and Conto Energia incentives

The page states that the GSE operating rules allow revamping and repowering interventions while preserving the economic benefits of Conto Energia, provided the intervention follows the required rules.

It distinguishes:

- **Revamping:** replacement of system components.
- **Repowering:** increase of installed system power.

According to the page:

- replacing modules and inverters with certified new-generation components allows the original incentive tariff to be maintained until the natural end of the 20-year agreement;
- additional energy generated by the increased capacity can be used for direct on-site self-consumption, reducing electricity purchases from the grid.

The page links to the [GSE operating procedures for maintenance and technological modernization under Conto Energia](https://www.gse.it/documenti_site/Documenti%20GSE/Servizi%20per%20te/CONTO%20ENERGIA/Regole%20e%20procedure/Procedure%20ai%20sensi%20del%20D.M.%2023%20giugno%202016_Interventi%20di%20manutenzione%20e%20ammodernamento%20tecnologico%20Conto%20Energia.pdf).

## White Energy Group services

The page describes revamping and repowering as multidisciplinary activities that include analysis of the existing plant, engineering design, and management of authorization and regulatory procedures with the GSE and the grid distributor.

White Energy Group presents three areas of support.

### 1. Performance assessment and feasibility study

The company states that it performs a free technical audit of the operating system by analyzing production curves. It then develops a business plan showing expected additional production, payback time, and generated cash flow.

### 2. Financing options

Two operating models are presented:

- **Turnkey EPC solution:** White Energy Group handles design, supply, and high-efficiency installation, while the customer retains full ownership of the system and its direct benefits. [Photovoltaic turnkey solution](https://weeg.it/soluzioni-energetiche-per-aziende/epc-engineering-procurement-andconstruction/fotovoltaico-chiavi-in-mano-con-incentivi/)
- **Zero-CapEx ESCo / on-site PPA solution:** White Energy Group funds the initial purchase and installation of the new components. The customer makes no initial capital outlay and pays for self-generated energy at an agreed price described as discounted compared with grid electricity. [On-site PPA contracts](https://weeg.it/soluzioni-energetiche-per-aziende/esco-energy-performance-solutions/contratti-ppa/)

### 3. Administrative and regulatory management

White Energy Group states that it manages the regulatory and procedural process for notifying changes to the GSE and checks that installed components meet the technical criteria required to protect the original Conto Energia incentive tariff.

## Related links

- [GSE operating procedures for maintenance and technological modernization under Conto Energia](https://www.gse.it/documenti_site/Documenti%20GSE/Servizi%20per%20te/CONTO%20ENERGIA/Regole%20e%20procedure/Procedure%20ai%20sensi%20del%20D.M.%2023%20giugno%202016_Interventi%20di%20manutenzione%20e%20ammodernamento%20tecnologico%20Conto%20Energia.pdf)
- [Fraunhofer ISE Photovoltaics Report](https://www.ise.fraunhofer.de/en/publications/studies/photovoltaics-report.html)
- [White Energy Group turnkey photovoltaic solution](https://weeg.it/soluzioni-energetiche-per-aziende/epc-engineering-procurement-andconstruction/fotovoltaico-chiavi-in-mano-con-incentivi/)
- [White Energy Group ESCo / on-site PPA contracts](https://weeg.it/soluzioni-energetiche-per-aziende/esco-energy-performance-solutions/contratti-ppa/)
- [White Energy Group company page](https://weeg.it/chi-siamo/)