Electric Load Letter Services for Accurate Electrical Capacity Assessment
Determine whether your property's existing or proposed electrical service can support the required equipment, systems, and connected loads. Daymark Engineers provides professional electric load letter and electrical load calculation services for commercial, residential, retail, restaurant, office, and other building projects across the United States.
- Accurate Load Calculations
- Code-Conscious Engineering
- Fast Turnaround & 50-State Support
Does Your Building Have Enough Electrical Capacity?
Before signing a lease, adding equipment, opening a new business, or modifying an existing electrical service, you need to know whether the available electrical capacity can support your proposed loads.
An electric load letter documents the estimated electrical demand of a building or tenant space based on the equipment, lighting, HVAC systems, appliances, and other electrical loads associated with the project.
Our engineers evaluate the available project information, calculate the anticipated electrical load, and prepare the required documentation to help owners, tenants, architects, contractors, landlords, and utility providers understand the project's electrical service requirements.
Evaluate Capacity
Identify Risks
Plan Upgrades
Make Confident Decisions
When Do You Need an Electric Load Letter?
An electric load letter can be useful when you're evaluating, modifying, or connecting electrical service for a property. Common situations include:
New Commercial Tenant
Determine whether an existing space has sufficient electrical capacity for your business.
New Construction
Estimate electrical demand and establish service requirements for a new building.
Renovation or Remodeling
Determine whether existing electrical infrastructure can support additional equipment or changes.
New Equipment
Evaluate the impact of HVAC equipment, kitchen appliances, machinery, EV chargers, or other high-demand equipment.
Electrical Service Upgrade
Determine whether your existing service needs to be increased to support the proposed load.
Utility Service Application
Provide electrical load information needed for utility coordination or service requests, where applicable.
Landlord Requirements
Provide documentation demonstrating anticipated electrical demand before occupancy or lease execution.
EV Charging Projects
Assess electrical capacity for electric vehicle charging infrastructure and charging equipment loads.
What Goes Into an Electric Load Calculation?
A reliable load letter starts with a properly evaluated electrical load. Depending on the project, our engineers may evaluate:
We review available equipment information, nameplate data, schedules, drawings, and project requirements to develop an appropriate electrical load assessment.
An Incorrect Load Estimate Can Become an Expensive Problem
Electrical capacity affects more than just the number on a load letter.
An underestimated load can create problems when the actual equipment is installed. On the other hand, unnecessarily oversizing electrical service can increase project costs and infrastructure requirements.
Our approach is focused on determining the appropriate electrical service capacity based on the project's actual and anticipated loads.
Our engineers help you:
- Understand the electrical demand associated with your project.
- Identify major loads that could significantly impact service requirements.
- Evaluate whether available electrical capacity appears appropriate for the proposed use.
- Plan for potential service upgrades or electrical infrastructure changes when required.
- Document the calculated load in a clear, professional format.
What Does Our Electric Load Letter Service Include?
Depending on project requirements, our comprehensive service can include:
Electrical Load Review
Review available architectural plans, equipment schedules, specifications, and other project information.
Equipment Load Assessment
Evaluate the electrical demand of major equipment and systems.
Electrical Load Calculations
Calculate applicable connected and demand loads based on project requirements and applicable codes.
Service Capacity Assessment
Compare calculated demand with the available or proposed electrical service.
Load Letter Preparation
Prepare the electrical load documentation required for the project.
Engineering Review
Perform an internal review of the calculations and documentation before delivery.
Utility / Project Coordination
Where included within the project scope, provide information needed to support coordination with the applicable utility or project stakeholders.
Our Electric Load Letter Process
A streamlined 5-step workflow designed to deliver accurate engineering documentation quickly.
Share Your Project Information
Provide architectural plans, equipment schedules, existing electrical information, utility documents, or other available data.
We Review the Requirements
Our electrical engineering team reviews scope, building use, square footage, equipment, HVAC, and existing service.
We Calculate Electrical Load
We evaluate applicable loads and determine anticipated demand based on project needs and code criteria.
Engineering Quality Review
The calculations and documentation are reviewed for completeness, consistency, and precision.
Receive Your Load Letter
The completed electric load letter and documentation are delivered digitally for your stakeholders.
What Do We Need From You?
The more complete the project information, the more efficiently we can evaluate the electrical load. Typical documents may include:
Electric Load Letter Services for Multiple Building Types
Our electrical engineers can support load assessment requirements across a variety of project types.
Commercial
Office buildings, tenant spaces, business facilities and commercial developments.
Retail
Retail stores, shopping centers and specialty retail spaces.
Restaurants
Restaurants, cafés, commercial kitchens and food-service facilities.
Residential
Single-family, multifamily and other residential applications.
Hospitality
Hotels, lodging facilities and hospitality projects.
Healthcare
Medical offices, clinics and other healthcare-related facilities.
Education
Schools, educational facilities and institutional buildings.
Industrial
Warehouses, manufacturing and facilities with specialized electrical equipment.
We Account for the Loads That Matter
Some projects have electrical requirements that go far beyond standard lighting and receptacles. Our load assessment can account for major equipment such as:
HVAC & Mechanical Equipment
RTUs, AHUs, heat pumps, electric heating and other mechanical loads.
Restaurant Equipment
Ovens, ranges, fryers, refrigeration, dishwashers and other commercial kitchen equipment.
EV Charging
Electric vehicle charging equipment and associated electrical demand.
Industrial Equipment
Motors, pumps, machinery and specialized production equipment.
Technology & IT
Servers, computer equipment and other high-density technology loads.
Renewable Energy
Solar PV and other onsite generation systems where applicable.
Electrical Load Calculations Based on Applicable Requirements
Electrical load calculations need to reflect the characteristics of the specific project and applicable jurisdictional requirements.
Our engineers consider applicable requirements, which may include the National Electrical Code (NEC) and relevant state and local electrical codes, standards, and utility requirements.
Where utility-specific documentation or requirements apply, we can coordinate the load information with the project requirements.
Before You Sign the Lease, Know Your Electrical Capacity
Imagine you're preparing to open a restaurant.
You've found the perfect space, negotiated the lease, and planned your kitchen.
Then you discover the existing electrical service cannot support the ovens, refrigeration, HVAC equipment, water heaters, lighting, and other loads required for your operation.
Now you're facing an unexpected electrical service upgrade—and potentially additional cost, construction, and delays.
An electric load assessment can help identify these issues before they become expensive surprises.
Know your electrical requirements before you commit.
Request Your Electric Load Letter
Send us your project details to evaluate your electrical load requirements.
Flat Price. No Surprises.
- One flat fee for a complete electric load letter
- No hidden charges
- Fast, reliable and professional service
Why Choose Daymark Engineers?
Evidence-based engineering delivered by experienced MEP professionals.
Engineering Expertise
Electrical load calculations prepared by experienced engineering professionals.
MEP Perspective
Electrical loads don't exist in isolation. HVAC, plumbing, kitchen, mechanical and other systems can significantly influence overall electrical demand.
Project Understanding
We review the proposed building use and equipment requirements—not just a number on a spreadsheet.
Clear Documentation
Receive organized electrical load documentation that is easy for project stakeholders to understand and use.
Nationwide Support
Support projects across multiple jurisdictions through a nationwide engineering team.
Responsive Service
A streamlined process designed to help architects, contractors, owners, tenants and developers keep projects moving.
MEP perspective. Accurate calculations. Clear documentation.
Electric Load Letter FAQs
Find answers to common questions about electrical load letters, calculation requirements, and turnaround times.
What is an electric load letter?
An electric load letter is documentation that summarizes the anticipated electrical load of a building, tenant space, or project. It can help determine whether the available or proposed electrical service can support the expected equipment and electrical demand.
Why do I need an electric load letter?
An electric load letter may be requested by a landlord, contractor, utility company, architect, or other project stakeholder to understand the electrical capacity required for a property.
Is an electric load letter the same as an electrical load calculation?
Not exactly. An electrical load calculation is the engineering analysis used to determine electrical demand. The load letter is the resulting documentation that communicates the relevant load information for the project.
What information is needed to prepare a load letter?
Typically, engineers need architectural plans, square footage, building use, equipment information, HVAC details, electrical service information, and other relevant project documentation.
Can you prepare an electric load letter for a commercial tenant space?
Yes. Tenant spaces are a common application, particularly when a tenant needs to determine whether the existing electrical service can support the planned business operations and equipment.
Can you calculate restaurant electrical loads?
Yes. Restaurant projects can require detailed evaluation of kitchen equipment, refrigeration, HVAC, water heating, lighting, receptacles and other electrical loads.
Do you provide electrical load calculations?
Yes. Electrical load calculations can be performed as part of an electric load letter service or as a separate engineering requirement, depending on project scope.
Can you help determine if an electrical service upgrade is required?
The load assessment can help identify whether the calculated demand exceeds or approaches the available service capacity. If additional capacity appears necessary, further electrical engineering may be required to determine the appropriate upgrade.
Do you provide load letters for new construction?
Yes. Load calculations and load documentation can be prepared for new construction based on the proposed building design and equipment requirements.
How quickly can I get an electric load letter?
Turnaround depends on the project size, complexity, documentation available, and engineering requirements. Contact Daymark with your project information for a project-specific timeline.
Is Your Electrical Service Ready for Your Project?
Don't wait until construction or occupancy to discover that your electrical capacity isn't sufficient. Let Daymark Engineers evaluate your project's electrical load requirements.
Send us your plans and equipment information to get started.