Cost Estimator

Repsol SA; Houston (TX); Hybrid; USD 110,000 - 160,000; Full time

Job summary

Repsol, a global multi-energy company, is seeking a Cost Estimator to develop robust, data-driven cost estimates for solar, wind, and storage projects across North America. You will lead bottoms-up estimates, parametric models, and benchmarking analyses to support project development, engineering, procurement, and investment decisions.

The role requires strong analytical skills and deep understanding of renewable cost drivers, translating engineering inputs into CAPEX/OPEX projections.

Qualifications

• Minimum 10+ years of cost estimating, budgeting, and financial analysis in energy (oil & gas or renewables).
• Bachelor’s degree in engineering, finance, or business.
• Strong ability to interpret engineering specs, Basis of Design, BOQ and contracts.
• Technical knowledge of solar and/or wind energy systems, construction processes, and industry standards.

Responsibilities

• Provide ROM, conceptual, and detailed estimates for solar, wind, and battery storage projects.
• Prepare cost estimates covering materials, labor, equipment, and subcontractor services.
• Maintain Basis of Estimate (BOE) for each project.
• Collaborate with project teams to validate assumptions and optimize costs.
• Create and maintain a cost benchmarking database.
• Monitor market trends for renewable energy components and update databases.

Skills

Cost estimation

Budgeting

Financial analysis

Engineering interpretation

Excel

Communication

Education

Bachelor’s degree in engineering, finance, or business

Tools

Microsoft Office

BOE/estimating software

Job description

We explore and discover the limitless possibilities of energy so we can all progress. We believe in the power of talent to shape the future. That’s why we’re looking for curious, bold individuals who are eager to grow and create new ways forward—people who want to join us in building a more sustainable, innovative, and inclusive world. We strongly believe that diversity fuels creativity and innovation. That’s why we welcome professionals who are ready to grow, learn, and bring their perspective to the energy challenges of today and tomorrow. Here, you’ll find a place to grow and unlock your full potential.

Company Profile Repsol is a globally integrated multi-energy company headquartered in Madrid, Spain. With a team of 25,000 employees across more than 20 countries, we proudly serve 24 million customers worldwide. Our diversified renewable energy portfolio totals nearly 6 GW of installed capacity, with a strong presence in Spain, the United States, and Chile. As part of our commitment to a more sustainable future, low-emissions generation is at the core of our strategy to achieve net-zero emissions by 2050. Repsol Renewables North America (RRNA) plays a key role in this vision, with aims to increase generation capacity between 3,000 – 5,000 MW by 2027. We are driven by innovation, collaboration, and purpose. Repsol offers a comprehensive Employee Value Proposition (EVP), including a holistic Total Rewards program that supports the wellbeing, growth, and contributions of our people. Join us in shaping the future of energy.

Job Summary

As a Cost Estimator, you will play a critical role in developing robust, defensible, and data‑driven cost estimates for solar, wind, and battery energy storage projects across North America. You will lead the preparation of bottoms‑up estimates, parametric models, and benchmarking analyses to support project development, engineering, procurement, and investment decisions. Supporting tasks include reviewing project specifications, preparing cost breakdowns, collaborating with cross‑functional teams, analyzing materials and labor costs, and ensuring compliance with company and industry standards. This position requires a strong analytical mindset, deep understanding of renewable project cost drivers, and the ability to translate engineering inputs into accurate capital (CAPEX) and operating (OPEX) cost projections. The position is based in Downtown Houston with a hybrid work model of a minimum of 3 days in the office.

Key Responsibilities

• Provide Rough Order of Magnitude (ROM), Conceptual, and Detailed estimates based upon project plans, technical specifications, Basis of Design, Bill of Quantities (BOQ) documents for solar, wind, battery storage projects
• Prepare detailed cost estimates covering materials, labor, equipment, and subcontractor services
• Prepare and maintain Basis of Estimate (BOE) for each project
• Collaborate with project managers, engineers, development, O&M and procurement teams to validate assumptions and optimize costs
• Create and maintain a cost benchmarking database
• Monitor market trends for renewable energy components and update cost databases accordingly
• Support and validate Change Management requests and validate cost impacts
• Maintain compliance with Repsol published guidelines and common processes as it relates to estimating
• Develop & maintain in-house estimating tools, templates, procedures, and guidelines
• Support team with project stage‑gate process and deliverables
• Maintain and utilize historical cost database and apply learnings for improved project performance
• Assess performance threats and opportunities against both internal and external benchmarks

Qualifications

• Minimum 10+ years of Experience in cost estimating, budgeting, and financial analysis in Energy industry (oil & gas or renewables)
• Bachelor’s degree in an engineering, finance, or business discipline
• Strong ability to interpret engineering specifications, Basis of Design, BOQ and contracts
• Technical knowledge of solar and/or wind energy systems, construction processes, and industry standards
• Familiarity of all project controls disciplines
• Proficient knowledge of Microsoft Office software
• Excellent analytical, problem-solving, and decision-making skills
• Strong communication and collaboration abilities
• Exemplary standards of integrity, safety, ethics, quality, and productivity

Repsol is an Equal Opportunity Employer M/F/Disability/Veteran

At Repsol, more than 24,000 people work with full energy to help build the future. We are a global multi-energy company undergoing a profound transformation, where talent, curiosity and a drive to move forward are at the core of who we are. Here, you will find challenging projects, diverse and international teams, and the opportunity to be part of a real energy transition, driven by innovation, technology and people. We believe in an inclusive, flexible and collaborative environment where every idea counts and every person makes a difference. This is an exciting time for us: if you are inspired by challenges, driven by purpose and eager to grow in a project with real impact, this is the place for you. Now more than ever, we need energy like yours.

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