Table 2 Variables and parameter inputs summary table used for TELCA (see Additional file 1 for sources)
| Â | Â | Darwin, Australia | Haikou, China | Chennai, India | Amsterdam, The Netherlands | Abu Dhabi, UAE | Recife, Brazil | Almeria, Spain | Mombasa, Kenya | Kona, US | Tunis, Tunisia | Izmir, Turkey | Acapulco, Mexico |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Base skilled Labour rate | USD h−1 | 24.11 | 4.97 | 1.61 | 33.58 | 16.13 | 3.49 | 12.56 | 2.03 | 26.00 | 4.30 | 2.40 | 2.20 |
Rate factors | |||||||||||||
 Unskilled |  | 78% | 72% | 80% | 86% | 73% | 80% | 75% | 71% | 80% | 42% | 81% | 83% |
 Supervisor |  | 119% | 128% | 140% | 114% | 140% | 147% | 110% | 135% | 120% | 130% | 114% | 149% |
 Operator |  | 120% | 118% | 150% | 125% | 196% | 162% | 121% | 148% | 130% | 143% | 126% | 164% |
 Management |  | 157% | 175% | 225% | 137% | 270% | 206% | 154% | 189% | 150% | 182% | 148% | 194% |
Base hours | h | 38 | 40 | 42.5 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 45 | 48 |
 Overtime loading |  | 160% | 100% | 200% | 100% | 100% | 150% | 100% | 100% | 100% | 100% | 150% | 100% |
 Labour efficiency |  | 79% | 54% | 50% | 80% | 62% | 55% | 76% | 46% | 87% | 57% | 70% | 58% |
 Labour non-wage costs |  | 37% | 50% | 22% | 20% | 35% | 52% | 25% | 20% | 23% | 17% | 32% | 17% |
 Contractor margin |  | 15% | 20% | 20% | 15% | 20% | 20% | 15% | 20% | 15% | 20% | 20% | 20% |
Currency value | USD | 0.75 | 0.15 | 0.01 | 1.17 | 0.27 | 0.27 | 1.17 | 0.010 | 1.00 | 0.38 | 0.21 | 0.054 |
Inflation rate | Per annum | 2.1% | 2.2% | 4.2% | 2.1% | 3.8% | 4.5% | 2.2% | 4.4% | 2.9% | 7.5% | 15.9% | 4.8% |
Interest (scenario 1: for profit model) | Per annum | 5.4% | 8.7% | 11.2% | 3.7% | 6.3% | 11.2% | 3.7% | 14.0% | 6.0% | 11.4% | 24.0% | 12.6% |
Government bond rate (scenario 2: public utility model) | Per annum | 2.7% | 3.5% | 7.8% | 0.5% | 4.2% | 11.0% | 1.4% | 13.2% | 2.9% | 6.6% | 17.7% | 7.8% |
Company tax rate | Â | 29% | 25% | 30% | 25% | 0% | 34% | 25% | 30% | 27% | 25% | 22% | 30% |
Carbon price | US$ T−1CO2e | 0 | 0 | 5.85 | 8.20 | 0 | 0 | 8.20 | 0 | 0 | 0 | 0 | 3.5 |
Land price | USD ha−1 | 2250 | 7500 | 18,296 | 66,731 | 8212 | 4091 | 27,623 | 6250 | 9063 | 998 | 42,000 | 6250 |
Electricity price | USD kWh−1 | 0.16 | 0.14 | 0.09 | 0.10 | 0.01 | 0.11 | 0.11 | 0.06 | 0.03 | 0.06 | 0.07 | 0.27 |
Water price | USD kL−1 | 0.06 | 0.075 | 0.04 | 0.22 | 0.86 | 0.02 | 0.12 | 0.08 | 0.06 | 0.05 | 0.02 | 0.03 |
Steel fabrication price | USD T−1 | 2107 | 1741 | 1296 | 2400 | 1943 | 2019 | 2540 | 1895 | 2303 | 1910 | 1807 | 1962 |
Average Irradiance | kWh m−2 day−1 | 5.78 | 4.43 | 5.47 | 3.02 | 5.97 | 5.89 | 4.93 | 5.48 | 5.28 | 4.83 | 4.68 | 5.34 |
Average rainfall | mm year−1 | 1730 | 1652 | 1392 | 838 | 57 | 2418 | 200 | 1059 | 467 | 519 | 718 | 1517 |
Average evaporation | mm year−1 | 2139 | 1419 | 1689 | 450 | 2235 | 1239 | 1585 | 1408 | 1856 | 1330 | 1482 | 1522 |
Algae species cultivated | Â | Dun | Nanno | Dun | Nanno | Dun | Dun | Nanno | Nanno | Dun | Nanno | Nanno | Dun |