Geothermal

power plant

Water

reused

1 Boiling water is

extracted and the

vapour is used to

drive turbines

2 The water is

reinjected into

the well

Insulating

sediment

Naturally hot

granite

1.5 miles

3 Water flows

through

permeable

pathways picking

up heat from the

surrounding

rocks

Water heated to 195C

3.2 miles

Geothermal

power plant

Water reused

1 Boiling water is

extracted and the

vapour is used to

drive turbines

2 The water is

reinjected into

the well

Insulating sediment

Naturally hot granite

1.5 miles

3 Water flows through

permeable pathways

picking up heat from

the surrounding rocks

Water heated to 195C

3.2 miles

Geothermal power plant

Water reused

1 Boiling water is extracted

and the vapour is used to

drive turbines

2 The water is

reinjected into

the well

Insulating sediment

Naturally hot granite

1.5 miles

3 Water flows through

permeable pathways

picking up heat from

the surrounding rocks

3.2 miles

Water heated to 195C

Geothermal power plant

Water reused

1 Boiling water is extracted and the

vapour is used to drive turbines

2 The water is reinjected

into the well

Insulating sediment

Naturally hot granite

1.5 miles

3 Water flows through permeable

pathways picking up heat from

the surrounding rocks

Water heated to 190C

3.2 miles