Technical & financial analysis of solar PV plants
STOWAI
Solar PV Financial Modelling Due Diligence O&M Optimization Machine Learning 2024
1 / 2 Technical & financial analysis of solar PV plants
1 / 2 STOWAI is a Madrid-based company that helps utility-scale solar PV plants produce more and spend less on operation and maintenance (O&M), with a particular focus on tracker structures. Since January 2024 I have worked there as Project Manager, Technical & Financial Analysis: building financial models of the plants, leading technical due diligence, optimizing O&M cost across operating portfolios, and developing commercial partnerships with leading Spanish solar companies.
I build financial models of utility-scale solar PV plants covering capital expenditure (CAPEX), O&M cost, production, and revenue, to test viability and support investment decisions. CAPEX, O&M, and P50/P90 production sensitivities identify the main drivers of project returns and size the downside cases. To ground those inputs, I model electricity prices, weather variables, and structural failure probability with statistical and machine-learning methods, converting them into revenue, O&M, and replacement CAPEX assumptions.
I lead technical due diligence on solar PV plants and tracker structures, reporting findings to clients and informing CAPEX and material-efficiency decisions. Across operating PV portfolios I optimize O&M cost, raising availability and asset life: the operating inputs behind cash flows and debt service coverage (DSCR).
The models, due diligence reports, and plant data behind this work are confidential, so this page describes the work rather than showing it. For a public example of this kind of analysis, my Project Finance, in Python series builds a solar PV model that sizes debt to a target DSCR, prices the equity IRR, and stress-tests returns with Monte Carlo simulation of irradiance and OMIE prices.