Hot water is one of the largest and most consistent energy expenses for hotels, resorts, and service apartments worldwide. A 50-room property consuming 3000–4000 litres of hot water daily can spend significantly on water heating energy alone. A well-designed FPC solar array eliminates 70–80% of that cost with a payback period of 2–4 years.
Why hotels need FPC, not ETC
Hotels and multi-storey properties have specific requirements that make FPC the right choice:
- Pressurised delivery: FPC systems deliver hot water at 3 Kg/cm², reaching any floor without booster pumps
- Large capacity: FPC arrays scale to 1000 LPD (8 collectors) and beyond
- Continuous flow: Pressurised systems support simultaneous draw from multiple outlets
- Integration with existing plumbing: FPC connects directly into standard pressurised supply lines
Sizing a hotel solar system
Allow 50–80 litres per room per day as a planning guide, adjusted for your occupancy rate and amenity level.
| Property Size | Hot Water Need | FPC System |
|---|---|---|
| 10-room guesthouse | 500 LPD | 4 collectors (1 array) |
| 30-room hotel | 2000 LPD | 3 × 8 collectors |
| 50-room resort | 4000 LPD | 6 × 8 collectors |
| 100-room hotel | 7000 LPD | Custom multi-array design |
Integration with existing systems
Kaldor FPC systems are designed to work alongside existing gas or electric backup boilers — the solar array pre-heats the water, and the backup heater tops it up only when solar output is insufficient. This hybrid approach typically reduces boiler runtime by 70–85% annually.
Tank options for commercial applications
- Diamond Glassline tanks: For hard water regions, handles up to 3000 PPM — the default recommendation
- SS 304-L tanks: For soft water coastal resorts, salt-air resistant
Hydrolux Solutions provides commercial feasibility studies for properties of all sizes.
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