Ottawa Geothermal Feasibility

WWIS water-well records · lithology-estimated thermal conductivity · Hydro Ottawa feeder capacity (OEB CCIM)

⌂ All Ottawa Visuals energy tools
Suitability segment

Restyles the Suitability layer — enable it in the layer list (top-right). Popups show this segment’s factor breakdown.

Thermal conductivity (est., W/m·K)

low < 2.0
medium 2.0–2.8
high > 2.8
low confidence (<5 wells nearby)

Suitability — residential

strong ≥ 75
good 50–75
fair 25–50
poor < 25

Drilling difficulty (screening, 0–100)

easy < 25
moderate 25–45
difficult ≥ 45

Open-loop feasibility (wells)

viable (SWL + yield ≥ 15 L/min)
possible (SWL, yield unknown)
unlikely

Feeder capacity (MVA)

0–1
1.1–3
3.1–5
> 5

City open-loop potential

high
average
low
none

Other layers

industrial / employment zoning
trunk sanitary sewer
combined sewer
Conductivity is estimated from drillers’ lithology logs, not measured. Class counts above update live when you edit the assumptions panel. Wells layer draws ~51k points — toggle it off if zoomed-out panning feels slow.
▸Conductivity assumptions

Per-bucket thermal conductivity κ (W/m·K), defaulting to VDI 4640 (2010) literature values. Edit a value (clamped to its literature min–max) and every grid cell recomputes exactly as κcell = Σ shareb × κb. Hover the ⓘ for each bucket’s source.

Well marker colours encode open-loop feasibility (not conductivity), so they stay fixed when you edit κ. Each well’s conductivity is recomputed from its lithology bucket when you open its popup.