Pluvial logoPluvial
HackSMU VII  ·  2026
Pluvial

Automated Water-Reuse Prospecting Engine

April 11, 9:00 AM – April 12, 6:00 PM 2026
Hughes Trigg Student Center · Southern Methodist University · Dallas, TX
Presented by Ujjwal Gupta · University of Texas Dallas
Scroll

The Data Pipeline

129 million records.
11,577 opportunities.

The entire continental US building stock — ingested, filtered, joined across six independent data authorities, and scored in a single automated pipeline.

1
129M

Building footprints ingested

Microsoft USBuildingFootprints + Overture Maps — entire continental US

2
~2M

Commercial candidates

Filtered by NAICS codes, roof area >100,000 sq ft, non-residential classification

3
50k+

Fully scored buildings

After joining precipitation, utility rates, ESG risk, and regulatory layers

4
11,577

High-opportunity targets

Top-ranked across 37 states — surfaced on the interactive map

Six Data Authorities

Geometry

Microsoft USBuildingFootprints

129M records — polygon area, classification, centroid

Industrial signals

EPA Facility Registry Service + NAICS

Flags cooling towers: non-potable water demand proxy

Climate yield

NOAA 30-Year Climatology Normals

Location-specific rainfall to calculate max harvestable gallons/yr

Financials

EFC Utility Dashboards + Municipal Open Data

Localized water/sewer rates for NPV, payback, ROI

ESG & risk

WRI Aqueduct Water Risk Atlas + SBTN/GRI

Drought stress index + corporate water-target compliance scores

Policy

TCEQ + State Tax Codes

Equipment exemptions factored into base and upside financial scenarios

The Score

Five dimensions.
One score.

Every building in the dataset is ranked by a composite score that merges physical, financial, policy, ESG, and climate signals — no single dimension dominates.

The output: a ranked list of the highest-certainty, highest-return targets across the country, each paired with a three-scenario financial model and an AI-generated investment brief powered by Gemini.

01

Physical Viability

Roof polygon area, geometry classification, structural signals from satellite + footprint data.

02

Financial Return

Three-scenario ROI model: base, conservative, upside. 10-year NPV, payback period, annualized savings.

03

Regulatory Incentives

State-level equipment tax exemptions, rebate programs, stormwater fee offset calculations.

04

ESG Alignment

SBTi water target compliance, GRI water reporting relevance, corporate sustainability mandate fit.

05

Climate Drought Risk

WRI Aqueduct water stress score + SBTN basin criticality — urgency multiplier on ROI.

Pluvial prospecting dashboard

Recognition

Placed at HackSMU VII.

3rd Place Overall

Southern Methodist University · Dallas, TX

Prize Awarded

Apple AirPods

Ujjwal Gupta receiving the prize at HackSMU VII