PRISMA® PVT 3.0 - Hybrid collector for pitched roof installation
PRISMA® PVT HORIZON - hybrid collector for flat roof installation.
The Prisma® PVT collectors combine a monocrystalline PV high-performance module with a highly efficient copper absorber installed on the back. The dimensions and the external appearance from the visible side are identical to the pure PV module.
The absorber has a water-glycol solution flowing through it. The individual modules are hydraulically connected to form a system, and a circulation pump stores the waste heat from the PV cells and the ambient heat in the TWL buffer tank by means of a heat exchanger. The heating water preheated in this way can then be further processed by various conventional burner types or a heat pump.
The monocrystalline photovoltaic module simultaneously produces electrical energy, which is fed into the house grid by means of an inverter. The electricity production is significantly increased due to the cooling of the PV cells. The performance data of the PV cells are usually specified at 25° C. In summer, however, surface temperatures of up to 80° C are reached. The performance of the PV cells decreases by approx. 0.4 percent per degree of temperature increase. At a cell temperature of 75° C, that is a 20 percent reduction in performance! The focus with regard to the generated electrical energy should be on the highest possible self-consumption, since the feed-in tariffs are far below the purchase costs of the electricity from the energy supplier.
In addition to the use of solar batteries, this can also be supported by the "Power to Heat" system concept. Here, surplus solar power is converted into thermal energy by means of a heating rod and thus stored in the buffer tank. If your heat pump is "Smart Grid Ready", it can be switched on as an alternative to the heating rod. This energy is then available for the production of hot water and for heating circuit support.
TWL PRISMA® PVT Collectors- Technical Data
| Module | PRISMA® PVT HORIZON | PRISMA® PVT 3.0 | |
|---|---|---|---|
| Dimensions | (mm) | 1724 x 1134 x 35 | 1724 x 1134 x 35 |
| Aperture area | (m²) | 1,95 | 1,95 |
| Empty weight | (kg) | 33 | 33 |
| Module PV area | PRISMA® PVT HORIZON | PRISMA® PVT 3.0 | |
|---|---|---|---|
| Test conditions | STC | STC | |
| Tolerance | (%) | 0~+3 | 0~+3 |
| Module efficiency | (%) | 20,97 | 20,97 |
| Maximum power Pmax | (W) | 410 | 410 |
| Open circuit voltage | Voc (V) | 37,45 | 37,45 |
| Short circuit current | Isc (A) | 13,85 | 13,85 |
| Voltage at maximum power | Vm (V) | 31,46 | 31,46 |
| Current at maximum power | In (A) | 13,04 | 13,04 |
| Cell type | monocrystalline silicon cell | monocrystalline silicon cell | |
| Number of cells | (pcs.) | 120 (6×20) | 120 (6×20) |
| Connection cable | 4 mm² MC4 connector | 4 mm² MC4 connector | |
| Snow load | (Pa) | 5400 | 5400 |
| Wind load | (Pa) | 2400 | 2400 |
| 25 years performance guarantee* | 10 years 91%, 25 years 80.7%. | 10 years 91%, 25 years 80.7%. |
*You can find a corresponding warranty statement HERE.
| Module thermie range | PRISMA® PVT HORIZON | PRISMA® PVT 3.0 | |
|---|---|---|---|
| Max. Heat output | (Wp) | 1090 | 1059 |
| Average thermal output** | (kWh/m²/year) | 422 | 409,5 |
| Average thermal power** | (kwh/year) | 798,5 | 798,5 |
| Input and output connection of thermal absorber | (mm) | Copper pipe 22 | Copper pipe 22 |
| Type of medium | Propylene glycol + water | Propylene glycol + water | |
| Medium quantity | (liter) | 2,39 | 2,37 |
| Absorber sheet | Aluminum | Aluminum | |
| Register | (mm) | Copper pipe 8 | Copper pipe 8 |
| Insulation | (mm) | Rock wool 20 | Rock wool 20 |
| Construction | covered on the back, insulated | covered on the back, insulated | |
| Warranty on processing and thermal part*** | 10 years | 10 years |
**At the Würzburg location
*** You can find a corresponding warranty statement HERE.