Table 4 SOC quantitative indicators.
From: A novel holistic metric for sustainability assessment of photovoltaic/battery systems
Location | Cairo | Berlin | Ryadih | ||||||
|---|---|---|---|---|---|---|---|---|---|
Year | 2017 | 2018 | 2019 | 2017 | 2018 | 2019 | 2017 | 2018 | 2019 |
Unsafe time | 5408 | 4125 | 4658 | 3461 | 4487 | 3862 | 2535 | 2562 | 2509 |
Mean | 72.3 | 77.8 | 82.7 | 56.4 | 63.4 | 58.3 | 70.1 | 70.2 | 69.6 |
Standard deviation | 32.1 | 18.1 | 11.9 | 33.8 | 34.2 | 34.6 | 19.6 | 19.9 | 20.2 |