Property and Equipment - Schedule of Property and Equipment (Details) - EUR (€) |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Schedule of Property and Equipment [Line Items] | ||
| Property and equipment, gross | € 287,441 | € 287,441 |
| Accumulated depreciation | (82,989) | (72,475) |
| Property and equipment, net | 204,452 | 214,966 |
| Furniture [Member] | ||
| Schedule of Property and Equipment [Line Items] | ||
| Property and equipment, gross | 23,873 | 23,873 |
| Laboratory Photovoltaic Installation [Member] | ||
| Schedule of Property and Equipment [Line Items] | ||
| Property and equipment, gross | 238,057 | 238,057 |
| Tools and Machinery [Member] | ||
| Schedule of Property and Equipment [Line Items] | ||
| Property and equipment, gross | 14,822 | 14,822 |
| Computer [Member] | ||
| Schedule of Property and Equipment [Line Items] | ||
| Property and equipment, gross | € 10,689 | € 10,689 |