Castillo Engineering and RECON Corporation in 15MW partnership

Castillo Engineering, RECON Working on 15 MW of Community Solar

Castillo Engineering and RECON Corp spearhead 15-MW Illinois community solar portfolio

Castillo Engineering Launches SolarLetters.com, Revolutionizing Solar Permitting Process

Solar Letters launches with mission to automate PE stamps for residential installers

Castillo Engineering develops automated solar engineering letter service

New website provides automated engineering stamps for residential solar

Castillo Engineering's client Stanley Black & Decker featured in the latest issue of enerG Magazine

Castillo Engineering and RPG Energy Reduce Endress+Hauser’s Costs by $140,000 with 1.3 MW Solar Project in Indiana

Endress+Hauser saves $140,000 with 1.3 MW solar project in Indiana

Indiana’s last net-metered solar project comes online

The last net-metered project in Indiana

2023 Outstanding Diverse Organization: Castillo Engineering

2023 40 Under 40: Christopher Castillo of Castillo Engineering

Castillo Engineering building 15-MW solar project for renewable diesel plant

11-site New York solar portfolio designed by Castillo Engineering, Solar Generation

How Freeing Their Project Portfolio From Dropbox Put This Father-Son Solar Engineering Firm on a Blazing Path of Growth

Top five battery energy storage system design essentials

PV cable sizing pt 1: Inverter output conductors

PV cable sizing pt. 2: Safely reduce cable sizes to maximize project returns

Site optimization yields significant savings on 6-project New York solar portfolio

Castillo Engineering selected to provide electrical design for New York community solar portfolio

2022 Power Players: Meet Central Florida's Disruptors

10 energy storage design considerations that can make or break your project

Florida contractor creates ‘Solar Done Right’ residential plan review checklist

Castillo Engineering optimizes New York solar site designs for ClearPath Energy

CS Energy, Castillo Engineering & Amp Energy Partner To Deliver 25.4 MW Community Solar Portfolio In New York

Stanley Black & Decker unveils 4.3 MW privately funded solar project in Kentucky