Investor Presentaiton
THE NEXT STEPS
Spa*ark Energy_14
A test hole using a slimline rig will be used to prove the
resource and confirm temperature and permeability. Some
further geophysics is required to best site the hole which will
likely go to circa 2km vertical depth.
The modelling and cost estimates to date have been 'high
level' and a scoping study with tighter costings and incomes,
including those from potential flow-on industries, is planned
prior to a commitment to drill.
The scoping study may also look at the merits of a
demonstration plant which, depending upon the test hole
results, might be able to generate ~0.3MW from two slimline
holes.
A full size rig will be required to extract hotter geothermal
fluid from greater depths to supply the main plant, which
would likely be staged with modules added as demand and
finances dictated.
The chart on the next slide gives estimated costs and times
required to complete the necessary studies and build (e.g.) a
26MW plant.
Om-
Etc.
N
Fish farms
Spas
Protected Power
cropping plant
Mineral
extraction
Timber
drying
Boreholes
Upper Parmeener sediments
Jurassic Dolerite
Permian Lower Parmeener sediments
Siluro-Devonian Mathinna metasediments
Geothermal reservoir
within fracture zone
Hot water
extraction
Cool water re-injection
Naturally permeable fracture zone
Heat from
buried granite
Devonian granite
A schematic section through the Lemont Geothermal Resource.
Lemont_1
(projected)
A cross-section through the 3D resistivity model.
The proposed test hole will be targeted on a low
resistivity zone (in red), interpreted to be a hot
brine-filled fracture, within 2km of the surface.
-1000m-
-2000m-
-3000m-
-4000m-
-5000m-
0 5
S
Ohm.m
2000
1089
593
323
176
96
52
28
15
8
5
2
1
10
10
15
20
20
25
30
Distance km
35
40 45 50
55View entire presentation