PE South America Updated 2026-08-20

Peru Geothermal Screening

Geothermal screening assessment identifies 32% prospective land reaching 185°C by 5.5 km depth in Peru.

Key Geothermal Metrics

Land Reaching 185°C by 5.5 km High Potential
32%

Primary baseline screening criterion

Shallowest Depth to 200°C Very Shallow
2.1 km

Minimum drill depth for high enthalpy

Peak Temperature at 5 km Depth Superhot
297.3 °C

Maximum modeled temperature

Typical Geothermal Gradient Volcanic / Rift
54.2 °C/km

Average to 5 km depth (15°C surface)

Grid Connectable Prospective Area Moderate Distance
66.3%

Hot territory within 50 km transmission

Stored Heat In-Place (3–7 km) 1 ZJ = 10²¹ Joules
746.4 ZJ

Thermal volume in place (>80°C baseline)

Depth vs. Temperature Matrix (% Land Area)

Proportion of national territory exceeding target isotherm at specified depth

0.1° Inversion Grid
Isotherm 3.0 km 4.0 km 5.0 km 6.0 km 7.0 km 8.0 km
150°C 10.4% 22.6% 35.4% 48.3% 62.6% 88.9%
175°C 11.7% 23.6% 33.3% 42.6% 54.3% 72.8%
200°C 8% 16.7% 27.4% 35.9% 54.4% 55.8%
225°C 7.8% 16.3% 23.6% 33.1% 40% 50.9%
250°C 4.9% 11.7% 16.9% 25.1% 36.8% 39%

4-Stage Geothermal Resource & Infrastructure Funnel

Progressive screening from gross national territory down to grid-connected & populated prospective zones

1 Whole country
1 285 216 km² 100%
2 Reaches 185°C by 5.5 km
411 269 km² 32%
3 ...and within 50 km transmission
272 671 km² 21.2%
4 ...and within 100 km town
230 749 km² 18.2%

Geological Setting & Subsurface Parameters

Lithology, basement thickness, stress and thermal boundary constraints

Median Depth to 200°C Isotherm 5.1 km
Best 10th Percentile Depth to 200°C 2.6 km
Median Temperature at 5 km Depth 201.7 °C
Best 10th Percentile Temp at 5 km 262.5 °C
Median Sediment Thickness 0.5 km
Sediment / Hard-Rock Well Share 12.8%
Territory Under 1 km Sediment Cover 76.1%
Lithostatic Pressure at 5 km Depth 139 MPa
Moho Crustal Discontinuity Depth 45.6 km
Thermal Lithosphere Thickness 132.4 km
Curie Temperature Isotherm Depth 15.4 km
Model Temperature Spread Uncertainty (200°C) ±1 km

Transmission Grid & Demand Colocation

Infrastructure interconnectivity and urban power demand proximity

High-Voltage Transmission Network Length 45 750 km
Land Area Within 25 km of Grid 55.4%
Land Area Within 50 km of Grid 66.3%
Land Area Within 100 km of Grid 74.2%
Average Proximity to Nearest Substation / Line 11.7 km
Urban Centers (>10,000 Population) 293
Total Urban Population 34.7 M
Prospective Resource Colocated Near Demand (>1M Pop) 26.3%

Target Sensitivity & Deep EGS Upside

Sensitivity of prospective resource area to adjusted depth and temperature thresholds

150°C Baseline at 5.5 km 51.2% of national territory reaches 150°C at 5.5 km depth
185°C Baseline at 7.5 km 57.6% of national territory reaches 185°C at 7.5 km depth

Global Peer Benchmarking (vs. 278 Assessed Jurisdictions)

Relative ranking distribution of Peru across 11 standardized geothermal indicators

Peru Rank Global Peer Spread
Shallowest 200°C depth
2.1 km Top 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 84th percentile
Peak temp at 5 km
297.3 °C Top 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 79th percentile
Prospective land area (>185°C at 5.5 km)
32% Middle 50%
P0 (Lowest) P50 (Median) P100 (Highest) • 53th percentile
Stored heat in-place (3-7 km)
746.4 ZJ Top 10%
P0 (Lowest) P50 (Median) P100 (Highest) • 90th percentile
Typical geothermal gradient
54.2 °C/km Top 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 77th percentile
Grid proximity (<50 km)
66.3% Middle 50%
P0 (Lowest) P50 (Median) P100 (Highest) • 66th percentile
Thin sediment coverage (<1 km)
76.1% Top 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 76th percentile
Curie isotherm depth
15.4 km Middle 50%
P0 (Lowest) P50 (Median) P100 (Highest) • 66th percentile
Moho crustal thickness
45.6 km Lower 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 18th percentile
Model temperature uncertainty spread
±1 km Middle 50%
P0 (Lowest) P50 (Median) P100 (Highest) • 59th percentile
Urban demand colocation
59.2% Top 25%
P0 (Lowest) P50 (Median) P100 (Highest) • 89th percentile
Asset-Level 3D Simulation Available

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Analytical Geothermal Assessment & Discussion: Peru

Subsurface thermal interpretation, model uncertainty, infrastructure colocation, and resource quality analysis

Resource Overview

Geothermal assessment for Peru indicates volcanic_arc geological controls governing subsurface heat transport, yielding 32% of land area reaching the baseline target of 185°C at 5.5 km depth.

Uncertainty & Model Variance

Thermal inversion across Peru shows consistent model convergence with constrained standard deviations across deep crustal layers.

Grid & Infrastructure Colocation

National electrical transmission coverage positions approximately 66.3% of prospective geothermal ground within 50 km of existing high-voltage corridors.

Geological & Basement Setting

Subsurface lithology is characterized by volcanic arc dynamics with median sediment thickness of 0.5 km and crustal thickness of 45.6 km.

Stored Heat Volume

Accessible thermal energy in place between 3 km and 7 km depth above 80°C totals 746.4 Zettajoules (ZJ).

Peer Comparison

Benchmarked against 237 global assessment jurisdictions, Peru demonstrates competitive positioning across heat flow, infrastructure, and basement competence indicators.

Target Sensitivity Analysis

Screening at 150°C baseline at 5.5 km increases prospective territory, demonstrating substantial deep EGS resource headroom.

Screening Methodology, Parameters & Limitations

This screening assessment for Peru is generated from Geothermal Radar Data Pack 2026.1 utilizing global 0.1° hex-grid thermal inversion across 14 280 model cells (land area: 1 285 216 km²). Baseline prospective criterion is defined as reaching 185°C at or above 5.5 km depth with surface temperature normalized to 15°C.

  • Screening estimates represent regional-scale heat in place and do not replace localized 3D seismic or exploratory drilling.
  • Model uncertainties expand in regions with sparse deep boreholes and complex thrust fault kinematics.
  • Grid proximity indicators reflect line-of-sight distance to high-voltage transmission and do not account for local substation thermal capacity.
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