Research Article
Life Cycle Costs and Life Cycle Assessment for the Harvesting, Conversion, and the Use of Switchgrass to Produce Electricity
Table 5
Initial construction costs of the selected storage systems (storage losses are not included) [
35].
| Storage system for square bales (950 lb/bale) | Cost per m2 ($) | Life years | Annual costs ($/m2) | Cost per bale ($) | Cost per ton ($) |
| Collective storage facility | 107.64 | 15 |
12.58 | 10 bales high | 10 bales high | 3.77 | 7.95 | Pole frame structure-enclosed on crushed rock | 70.39–107.64 | 15 | 8.22–12.58 | 5 bales high 4.93–7.55 | 6 bales high 4.11–6.29 | 5 bales high 10.39–15.89 | 6 bales high 8.66–13.24 | Reusable tarp on crushed rock (19.8 sq. ft/bale i.e., 1.84 m2/bale) | 1.47 | 5 |
0.37 | 4 bales high | 4 bales high | 1.39 | 2.92 |
Outside Unprotected on crushed rock | 2.70 | 5 | 0.68 | 0.51 | 1.07 | Outside and unprotected on ground | 0.00 | — | 0.00 | 0.00 | 0.00 |
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