How to Assess Industrial Power Requirements for Your Warehouse: A Step-by-Step Guide

As seasoned industrial real estate brokers in Orange County, we've seen firsthand how the power requirements of a commercial warehouse can make or break a business. Adequate electrical infrastructure and three-phase power capacity are essential for running modern industrial operations, from HVAC systems to high-powered machinery.

Understand Your Baseline Power Needs

The first step is to assess your baseline power requirements. This involves taking a detailed inventory of all the equipment, machinery, and electrical systems that will be in use. Make a list of each item, its voltage, amperage, and phase requirements.

For example, let's say you're looking at a $4,000,000 warehouse in Anaheim. The building has 50,000 square feet of space and the current owner has the following equipment installed:

• 10 industrial-grade air compressors (480V, 3-phase, 100A each)
• 8 CNC mills (480V, 3-phase, 150A each)
• Lighting and HVAC systems (208V, single-phase, 400A total)

In this case, the total power demand would be:

• Air compressors: 10 x 100A = 1,000A at 480V, 3-phase
• CNC mills: 8 x 150A = 1,200A at 480V, 3-phase
• Lighting/HVAC: 400A at 208V, single-phase

This gives us a baseline of 1,000A at 480V (3-phase) and 400A at 208V (single-phase) for the full power requirements.

Consider Future Growth and Expansion

Of course, you'll also want to factor in any anticipated growth or changes that could impact your power needs down the line. Perhaps you plan to add more production equipment, double your workforce, or expand the facility in the next 5-10 years.

Some business owners follow the mantra that if the expected internal rate of return on the business is higher than the potential savings from right-sizing the electrical system, it's worth investing in extra capacity upfront. Others prefer a more conservative approach, trying to match power infrastructure as closely as possible to their current and near-term needs.

In our experience, it often comes down to the business owner's risk tolerance and growth projections. We typically recommend erring on the side of having slightly more power capacity than you think you'll need. The cost of upgrading an undersized system later can be prohibitive.

Determine the Right Electrical Service

Once you've assessed your baseline and future power requirements, you can start to evaluate the right electrical service for your warehouse. The two main options are:

Single-Phase Power: This is the standard 120/208V service found in most commercial buildings. It's suitable for basic lighting, HVAC, and low-power equipment. However, it's generally not enough for heavy industrial machinery that requires 3-phase power.

Three-Phase Power: This 480/277V service is the gold standard for industrial operations. It provides more power, efficiency, and flexibility than single-phase. The higher voltage also allows for thinner, less expensive wiring.

Going back to our $4,000,000 Anaheim warehouse example, the power requirements would likely necessitate a 3,000A 480V, 3-phase electrical service. This would provide ample capacity for the existing equipment as well as future growth.

Partner with the Right Utility Provider

Finally, you'll need to work closely with your local utility company to ensure you get the right electrical service installed. They can provide guidance on the specific infrastructure needed, permitting, and any potential upgrades or expansions to the grid in your area.

In many cases, the utility will require you to pay for a portion of the upfront costs for new or upgraded service. But the long-term benefits of having the right power capacity in place can far outweigh these initial expenses.

Wrap Up

Assessing industrial power requirements is a critical step in securing the right commercial warehouse for your business. By carefully evaluating your baseline needs, factoring in future growth, and selecting the appropriate electrical service, you can set your operation up for long-term success.

If you have any other questions about power infrastructure or other industrial real estate fundamentals, please don't hesitate to reach out to our team. We're always happy to share our decades of experience serving business owners in Orange County.