Sun by day. Heat all night.
Each 10-panel zone cools its own panels, lifts the recovered heat to 60 °C (140 °F) with a variable-speed heat pump, and banks it in compact phase-change storage, so the building runs on solar heat long after sundown.
Designed to Capture, Lift and Store Solar Heat.
5,420 per panel¹
One 10-Panel Zone. One Integrated Thermal System.
10 × 600 W PVT Array
Each zone combines the PVT array, rear heat exchanger, panel loop, variable-speed heat pump and phase-change thermal storage into a coordinated system.
| Component | Specification |
|---|---|
| PVT array | 10 × 600 W (6.0 kWdc) |
| Rear HX | Finned copper, closed loop |
| Panel loop | 14 L/min · 25/41 °C (77/106 °F) |
| Heat pump | 6-ton water-to-water, VFD |
| Compressor input | 1.8–5.8 kW, soft start |
| PCM storage | 256,000 BTU · 55–58 °C (131–136 °F) |
| Tank size | ~600 gal (vs ~1,700 gal water) |
| Building supply | 50–55 °C (122–131 °F) hydronic |
How It Runs
CHARGE
The compressor follows the sun at 30–100% speed, holding panel water near 25 °C (77 °F) while it charges storage.
PROTECT
The compressor throttles back and the zone blower sheds surplus heat, so the panels stay cool.
DISCHARGE
The heat pump shuts off and the building draws steady 50–55 °C (122–131 °F) heat from the PCM.
Scale by the Zone.
100 Panels
100 panels = 10 zones, about 60 tons of heat pump and 2.56 million BTU of storage.
Building Heat
Heat pump plus PCM serving building heat may qualify as thermal energy storage under §48E.
Thermal Energy Storage Consideration
Credit applies to incremental storage cost only; confirm eligibility with the owner's tax adviser.³
Sun by day. Heat all night.
PVT + Heat Pump + Storage · Per 10 Panels
317-505-9200¹ Heat collection field-measured at peak sun by Modern Thermal Design Pakistan Office and R&D; heat pump and storage are design values for one zone at that output; results vary by site. ² Projected from the module's −0.29%/°C coefficient at about 40 °C (104 °F) cooled vs 57 °C (135 °F) uncooled panel temperature; not yet field-validated. ³ Credit applies to incremental storage cost only; confirm eligibility with the owner's tax adviser.