Table 5 Solar radiation and meteorological parameters.
From: Feasibility and case studies on converting small hydropower stations to pumped storage
Month | GHI (MJ/m2) | DNI (MJ/m2) | DIF (MJ/m2) | D2G | GTLopt (MJ/m2) | TEMP (°C) | WS (m/s) | CDD (degree-days) | HDD (degree-days) |
|---|---|---|---|---|---|---|---|---|---|
1 | 247.7 | 218 | 137.3 | 0.554 | 304.2 | 5.2 | 1.8 | 0 | 398 |
2 | 273.8 | 198.4 | 159.1 | 0.581 | 313.5 | 7 | 1.9 | 0 | 310 |
3 | 373.4 | 234 | 217.1 | 0.581 | 398 | 10.8 | 1.9 | 0 | 224 |
4 | 433.9 | 248.8 | 250.8 | 0.578 | 432.9 | 15.9 | 1.9 | 11 | 74 |
5 | 498.1 | 275.3 | 287.5 | 0.577 | 471.2 | 20.4 | 1.8 | 77 | 3 |
6 | 416.6 | 198.5 | 264.2 | 0.634 | 384.1 | 23.5 | 1.6 | 166 | 0 |
7 | 596.3 | 400.3 | 294.5 | 0.494 | 555.8 | 27.2 | 1.9 | 285 | 0 |
8 | 538.6 | 351.9 | 283.7 | 0.527 | 526.4 | 26.6 | 1.9 | 266 | 0 |
9 | 408.1 | 255.9 | 233.1 | 0.571 | 423.7 | 22.7 | 1.9 | 141 | 0 |
10 | 367.6 | 275 | 200.7 | 0.546 | 414.9 | 17.7 | 1.9 | 27 | 36 |
11 | 268.1 | 239.3 | 142.9 | 0.533 | 326 | 12.7 | 1.8 | 0 | 158 |
12 | 272.9 | 279 | 138.5 | 0.507 | 351.7 | 6.9 | 1.8 | 0 | 344 |
Annual | 4695.1 | 3174.3 | 2609.3 | 0.556 | 4902.3 | 16.4 | 1.9 | 971 | 1547 |
