Hi, I'm
Zee Marquez
Energy specialist combining asset engineering, data science, and project finance. I work across the full stack of a problem. I like to build cool stuff and learn new things!
Featured
A Thousand Futures: Monte Carlo Risk for a Solar Project
Blog
Part 3 of 3, turning a single deterministic IRR into a full probability distribution of returns. A Markov-chain weather model, a kernel-density price model, and a thousand Monte Carlo runs through the project finance model, plus the uncomfortable truth about what really drives a solar plant's returns.
How Much Sun? Building the Dataset Behind the Model
Blog
Part 2 of 3, to model a solar plant's risk you first have to measure the sky. Separating sunlight into a deterministic astronomical signal and pure weather randomness using pvlib, NASA satellite data, and the Clear-Sky Index.
What a Solar Farm Is Worth: A Project Finance Model in Python
Blog
Part 1 of 3, building a three-statement, cash-flow-waterfall project finance model for a solar plant in Python: sizing the debt to a DSCR, pricing the equity IRR, and stress-testing the returns against the one thing nobody controls, the sun.
Economic Data
Economy tools & dashboards
A personal collection of economy-related tools and interactive dashboards — from a full life financial simulator to housing market analysis and tax calculators.
Next.js Data Economics
Stowai
IoT monitoring for solar PV plants
A startup using affordable IoT sensors and machine learning to monitor, optimize, and predict failures in solar photovoltaic plants and tracker structures.
IoT Machine Learning Hardware