
Predominant Use Studies
Perform analyses to determine predominant use for tax and compliance purposes, supporting cost recovery and incentives.
Service Overview
At Engineering Design Services, predominant use studies help clients accurately determine the primary use of electrical energy within a facility for tax classification and utility billing purposes. We take a data-driven, engineering-based approach to evaluating electrical consumption across systems, processes, and equipment to establish defensible usage classifications.
Our team analyzes electrical loads, operating profiles, and system distribution to determine whether a facility qualifies for manufacturing or other reduced tax rate categories based on predominant use criteria. We work closely with clients across industrial, commercial, and institutional sectors to ensure studies are accurate, well-documented, and aligned with applicable regulatory requirements.
By combining electrical system analysis with operational understanding, we deliver studies that support tax savings opportunities while maintaining compliance and audit readiness. Our goal is to provide clear, supportable documentation that reduces uncertainty and strengthens financial decision-making.
Engineering Challenge We Solve
Electrical usage classification can be complex in facilities with mixed operations, shared systems, and variable load profiles. Our approach addresses these challenges by:
Accurately Allocating Electrical Loads:Distinguishing between qualifying and non-qualifying usage.
Maximizing Tax Savings Opportunities: Identifying eligible manufacturing or production-related loads.
Ensuring Regulatory Compliance: Aligning with state-specific tax rules and utility requirements.
Reducing Audit Risk: Providing defensible, well-documented study methodologies.
Clarifying Mixed-Use Facilities: Separating overlapping operational and support loads.
Core Capabilities
Our team provides comprehensive predominant use study services across all facility types:
Electrical Load Analysis: Evaluation of facility-wide power consumption and distribution.
Equipment Classification: Identification of production vs. non-production electrical loads.
Single-Line Diagram Review: Assessment of electrical system architecture and load flow.
Metering & Data Evaluation: Review of utility data, submetering, and historical usage trends.
Site Walkdowns: Field verification of equipment operation and load assignments.
Tax Study Documentation: Preparation of reports supporting filing and compliance requirements.
Advanced Tools & Technical Expertise
We apply detailed electrical engineering analysis and structured methodologies to ensure study accuracy:
Electrical System Expertise: Understanding of industrial power distribution systems and load behavior.
Data Analysis Methods: Use of utility billing data, demand profiles, and operational schedules.
Cross-Discipline Coordination: Collaboration with operations, maintenance, and finance teams.
Regulatory Awareness: Knowledge of state-specific tax exemption criteria and utility rules.
Field Verification Practices: Validation of equipment function and actual usage conditions.
Industries We Support
Our predominant use studies support industries with significant electrical consumption and manufacturing activity:
Industrial Manufacturing: Production facilities with high-energy process loads.
Petrochemicals: Refineries and chemical processing plants with complex electrical systems.
Energy: Oil & gas facilities, LNG plants, and power generation sites.
Data Centers & Utilities: High-load facilities with mixed-use electrical distribution.
Food & Beverage: Large-scale production and processing operations.
Aerospace: Manufacturing and testing facilities with specialized electrical demand profiles.
Deliverables
We provide clear, audit-ready documentation to support tax filings and compliance:
Predominant Use Study Reports: Full analysis of electrical usage classification.
Load Allocation Summaries: Breakdown of qualifying vs. non-qualifying loads.
Supporting Calculations: Engineering-based documentation of load determinations.
Site Survey Documentation: Field verification records and equipment listings.
Utility Data Analysis: Evaluation of historical consumption and demand patterns.
Audit Support Packages: Documentation prepared for regulatory review or verification.

