Land Water and Critical Materials Requirements

Land and water requirements are shown in the table below for each of the technology cases. The land and wate r requirements initially increase as a result of increasing plant annual operating capacity factors. The land requirements begin to decrease as a result of improving solar-to-electric efficiencies. Note, the plant capacity factor increases ove r time because future plants are assumed to include thermal storage and proportionally larger solar fields.

Table 4. Resource requirements [2].

Indicator

Base Year

Name

Units

1997

2000

2005

2010

2020

2030

Plant Size

MW

30

80

161

320

320

320

Land

ha/MW

2.2

2.2

3.1

3.7

3.6

3.4

ha

66

176

500

1,190

1,150

1,090

Water

m3/MW-yr

18,500

14,900

17,500

21,900

21,900

21,900

Solar Power

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