Bio Highlights:

20+ years international experience as an engineer in energy systems design, licensing/permitting and construction management. Mr. Callahan has developed a specialty in the unique aspects of renewable energy development including experience in: 

Site control Issues: Buffer restrictions, Riparian, Tree clearing restrictions, Solar Shade impact and Facility

• Zoning, easement and setback analysis
• Adverse Effects Analysis: Disruptions to airports and other facilities affected by PV
• Gaining Access to legal property polylines and identify Initial usable area based on proposed or arranged site control with property owner.
• Identify adjacent properties that could benefit or provide obstacles for development.
• Property easements etc. that will limit development of PV
• Access / Land use exclusions
• Deeds and ownership issues
• Local weather that may affect performance i.e. morning fog from a river or coastline. Conditions not reflected in NREL or TMY1 weather data.

• Deed, Local Utility Right of Ways or other ROW’s, easements, etc. Gas, chemical, electrical, water, sewage, etc.
• Wetlands analysis (NWI and any historical Delineations) and mapping layers (ArcGIS)
• FEMA Flood Zone and mapping layers
• Hydric Soils Map and general soils map
• Slope analysis using AutoCAD Civil 3D and the best public surface data available
• Drone geospatial data collection quotes for site
• CAD Grading analysis
• Substation and Transmission / Distribution
• Interconnection EE on Interconnection application and scoping meeting with Utility and eventually provide data needed for Feasibility Study and
  Facility Study.
• BESS (Battery Energy Storage System) firm on optimal storage system design as per needs from Utility and economic modeling.

Work Experience at Lead Engineering position:

• Caden Energy Corp.
• Microgrid Labs LLC
• Saral Urja Nepal Pvt. Ltd.
• energisimple LLC
• energiLAB LLC
• Simple Solar LLC – Solar Electric EPC Boulder, CO :Founder /Owner / CEO