Manager, Project Estimating-Power Generation & Energy Infrastructure

Manager, Project Cost Estimating – Power Generation & Energy Infrastructure 

Location: Columbus, OH / Valparaiso, IN / Project Sites / Hybrid  

Job Type: Full-Time 

Job Summary 

At NiSource, we are committed to delivering safe, reliable, and sustainable energy to the communities we serve. We are seeking a Lead Project Estimator to support the development and execution of major capital power and energy infrastructure projects. 

This role plays a critical part in ensuring that cost estimates are accurate, transparent, and aligned with regulatory expectations, supporting sound investment decisions and long-term planning. The Senior Project Estimator partners across engineering, project development, supply chain, and construction teams to develop estimates that reflect technical scope, market conditions, and execution strategy. 

Projects may include: 

• Combined Cycle Gas Turbine (CCGT) generation 

• Simple cycle / peaking generation 

• Battery Energy Storage Systems (BESS) 

• Renewable energy (solar, wind) 

• Transmission interconnections and substations 

• Grid improvement technologies 

Key Responsibilities 

Cost Estimating & Analysis 

• Lead development of Class 5 through Class 1 estimates in alignment with AACE principles 

• Prepare total installed cost (TIC) estimates including EPC, owner’s costs, contingency, and escalation 

• Perform quantity takeoffs from engineering drawings, specifications, and conceptual designs 

• Develop detailed cost estimates for labor, materials, equipment, subcontractors, and indirect costs 

• Clearly define estimate bases, assumptions, exclusions, and methodologies 

• Prepare estimate packages that are suitable for governance reviews and investment decisions, including basis of estimate documentation, assumptions, exclusions, key risks, and confidence ranges 

Capital Planning & Regulatory Support 

• Support capital planning, integrated resource planning (IRP), and long-term investment strategies 

• Provide cost inputs to support regulatory filings, rate cases, and investment approvals 

• Develop estimate ranges and confidence levels aligned to project stage and governance requirements 

• Evaluate alternative project configurations and execution strategies to support least-cost, best-fit solutions 

Technical Integration & Project Development 

• Translate engineering scope into cost drivers across major systems, including: 

• Gas turbines