Andres Esparza

• Responsible for giving subcontractors orientation when they arrive at our sites for the first time.
• Operation and maintenance on Utility sized Solar farms. From cleaning inverters to troubleshooting inverters and solar fields
• Investigate Loss of Communications:

- Worked with Trimark and AES engineers to restore communication.

- Pulled SEL files on site trips for engineering team to investigate and get clearance to restore site.

- Inspect the site for any damage

• Certificates:

- CPR Certified

- OSHA 10

- Forklift Certified

- SUNGROW: Level 3 component replacement and maintenance certified

• Troubleshoot and repair trackers:

- Worked on NexTracker and ATI

- Worked with the ATI team to troubleshoot faults

• Troubleshoot PLCs:

- Replaced and calibrated motor so all trackers are tracking at the same set point.

• Troubleshoot ground faults:

- This includes walking the field and looking for any loose, pinched, or arcing wire and mc4 connections or any broken panels. Megging inductors to see if they pass insulation test.

• Process of LOTO:

- I make sure when doing LOTO all personal is aware what equipment will be down. Also, make sure I have all paper work done with all the participants locks and that they are on the lock box or hasp.

• Monthlies on inverters and PV equipment:

- We are responsible to preform monthlies. Which includes investigating any break-ins, overgrown vegetation, full walks around inverters, documenting information, and looking for any damaged equipment.

• Inverters I Have Worked On:

- SMA

- PE

- SUNGROW

- EATON

- GPTECH

• DC Health Inspection:

- When preforming DC health inspection this includes replacing any broken panels, popped fuses, mc4 connectors, locating and repairing ground faults, and combiner/LBD box repairs

• Able to read and follow single line diagrams:

- When troubleshooting inverters I'm able to follow the equipment we are troubleshooting with the help of the one line diagrams so we can test and replace any necessary parts.

• Identify Hazards:

- Im always aware before working on any equipment that I'm wearing the correct PPE for the job and look for any hazards that may be present to keep myself and co-workers safe from any incidents that may occur.

- I Make sure my meters or any other tools that require any calibrations are up to date.

- I Always inspect my hand and power tools for any wear or tear.

• Responding to site or inverters tripped offline:

- Our team uses a program called Vantage and Ignition. This helps us monitor our equipment to see if everything is working properly and online.

• Annual PMs:

- For our annual PMs we are responsible to properly clean the inverters, MVT's, preform any testing on our equipment if needed, and document any pictures or data needed.

• Responsible for maintaining the sites to the highest possible standard:

- This includes being available after regular work hours or maintaining a clean environment on all sites and doing any landscaping to help with vegetation by mowing any overgrown grass.

• Improved overall system performance with thorough inspections and preventive maintenance tasks.

• Install mc4 connectors
• Run underground wire
• Troubleshoot faulted equipment
• Knowledge with 120/240v
• Knowledge of PV wire equipment and installation
• Wire 480 motors

• Installed interior and exterior recessed fixtures
• Installed wall packs and photocell
• Installed solar panels