Stop by Booth # 111 at NAESCO’s 35th Annual Conference & Vendor Showcase

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We’re looking forward to our 5th straight NAESCO conference. Meet Bert CEO, Scott Yetter and Southern Area Business Development Manager, Kirk Rodgers in Orlando and learn why leading ESCOs included Bert’s industry-leading solutions in over 80 performance contracts.

Hint: It might be our rapid payback, quick deployment and proven implementation methodology.

Bert’s patented wireless solutions use the existing network to manage devices and collect building data from miscellaneous electric loads to deliver verifiable energy savings and improved building efficiency. In addition, Bert integrates these loads into BACnet/IP-based building automation systems for centralized control and administration.

Stop by to see us at Booth # 111!

NAESCO 35th Annual Conference

Conference Description

Targeted to the ESCO market, NAESCO’s premiere conference and vendor showcase focuses on key policy and business issues affecting the energy service industry. The program includes a mix of content, exhibit time and networking covering the latest innovations, technologies and services in the energy efficiency industry.



October 31 – November 2, 2018


Omni Orlando Resort at ChampionsGate
ChampionsGate, Florida 33896

Join Us at the 7th Annual ESC Market Transformation Conference in Atlanta

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We’re heading to Atlanta for the 2018 Energy Services Coalition Conference on October 4th and 5th.

Please visit us at the exhibit expo to learns why Bert’s industry-leading hardware, software and integration solutions for plug and hardwired loads improves performance contract economics. By controlling “everything else” in the building, Bert delivers big energy savings.

We hope to see you in Atlanta!

Conference Description

The 1 ½ day conference offers a broad range of topics for those involved in the guaranteed energy savings performance contracting (GESPC) community, including those managing, developing, implementing or marketing GESPC programs, products or services.


Find more information or register your spot here:


October 4 – 5, 2018


Georgia Tech Hotel and Conference Center
Atlanta, GA 30308

Can I Calculate Plug Load Energy Savings If I Don’t Know the Number of Devices or the Standby Loads?

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Yes, it’s possible to estimate potential savings without having detailed information using an automated savings calculator. While the estimate will be less accurate than an estimate using actual device counts and standby load data, it is often sufficient to determine whether to proceed with a detailed audit, especially given the fact most energy managers do not have the tools or enough information to confidently estimate potential savings on their own.

Rule of Thumb Estimate

Lacking specifics about devices and loads, the following rule of thumb can be used to gauge potential savings;

The yearly cost to power an uncontrolled kW load is roughly $1,000. Powering the load off nights and weekends saves nearly $700 each year since commercial buildings are only occupied about 30 percent of the time.

Here’s the math:

Annual Cost Uncontrolled kW MEL at $.11 kWh
Devices are on all day, every day

8,760 hours on x $.11 kWh rate = $ 963.60

Annual Savings Controlled kW MEL at $.11 kWh
Devices on weekdays and off nights and weekends

6,132 hours off x $.11 kWh rate = $ 674.52

Use Savings Calculator That Estimates Savings By Device

A more accurate and detailed plug load savings estimate can be created using an automated savings calculator like Bert’s Preliminary Savings Sheet, which models the expected number of common plug loads for buildings based on the type of building and its size.  Bert uses exclusive data about the number of devices per square foot and average hourly standby loads from earlier projects to estimate savings.

Minimal building data is needed for an estimate. For example, Bert’s model only needs the following data: building types, square footages and kWh rates. These tools are an easy way to determine whether projects make sense. Estimates should include kWh and $ savings for the project as well as savings calculations broken out by device type and building.

Contact Bert for a Preliminary Savings estimate.

Audit Every Building For A More Accurate Estimate

For the most accurate savings estimate, a physical inventory of all plug and hardwired loads is necessary. Without this level of detail, it is simply not possible to accurately calculate energy savings.

Record the location, quantity and device type of all MELs. Ideally, the audit data is captured electronically and automatically entered into the savings calculator. Besides improving the accuracy of the savings estimate, data can be shared between energy service companies, installation partners and the end user.

At the same time, the standby loads for each device type should be determined. Once all the data is collected, the savings model is re-run, using the actual audit counts and standby load data.

Compare Measured Overnight Load to Savings Estimate

Once control and measurement devices, such as the Bert Smart Plug and Inline Series, are installed the savings model should be run again using the ‘as-built” quantities and measured standby loads. kWh and $ savings can be compared to earlier savings estimates.

Overnight Loads Make Up 30% to 50% of Baseline Loads

Finally, compare the proportion of the Overnight Load to the Baseline Load to calculate the energy savings as a percentage of the total Baseline Load. In most projects, Overnight Load represents somewhere between 30% and 50% of the Baseline Load.

This percentage varies greatly between projects, depending on occupancy hours, kinds of devices controlled and the daytime energy usage patterns.

In buildings with heavy daytime device usage, the daytime load represents a larger proportion of the overall load, so the savings percentage will be smaller.

In buildings where devices are used fewer hours, the daytime and overnight loads are closer to the same size, meaning the savings percentage could be close to 50 percent.

As you look at the savings percentage, it’s important to note that the percentage reduction is not directly related to total kWh or $ savings. A lower percentage does not mean that a project is saving less money or fewer kWh than a project with a higher percentage. It just means that, on a relative basis, it’s likely the project with the smaller percentage has devices that are used more frequently during the week.

Breakdown of the Baseline Load

Baseline Load: kWh recorded during baseline data collection
Includes all devices and circuits that will be controlled. Devices run with no schedules, while hourly measurement data for each load is captured. Baseline Load is split into two categories for savings calculations: Daytime Load and Overnight Load.

Daytime Load: kWh while the building is occupied
This load varies from week-to-week and can differ from the load recorded during baseline data collection. Devices are scheduled on during daytime hours. Measurement data is collected.

Building operators seeking detailed information about daytime device usage should use an administrative dashboard like Bert Analysis to analyze and compare daytime energy usage.

Overnight Load: kWh while the building is empty
Also called Standby Load. This load is eliminated once devices are scheduled, meaning total kWh and $ savings are equal to the size of this load.

Bert Delivers the Plug Load Piece of the Energy Management Puzzle

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Welcome to Bert’s new blog, Small Things. The blog will feature topics related to commercial plug and hardwired loads. Each post covers a single topic in a short, easy-to-digest format.

Control for “Everything Else” in the Building

Bert delivers the missing piece of the energy management puzzle, control and management of miscellaneous electric loads not connected to Building Automation Systems (BAS).

The BAS handles HVAC, lighting and mechanical systems, but doesn’t address loads like printers, copiers, classroom electronics, vending machines, exhaust fans, break room equipment, window AC units, electric hot water heaters or air handling units.

Bert describes these loads – which are outside of a building’s core functions – as “everything else” in commercial buildings.

Bert controls everything else

Bert’s patented wireless energy management platform for miscellaneous electric loads saves energy and provides valuable insight into building operations; collecting and storing real-time granular device, measurement and temperature data for increased efficiency and comfort. The platform includes the ability to integrate these loads into BACnet/IP building automation systems.

Data about 30,000+ Plug and Hardwired Loads

Bert hardware controls over 30,000 plug and hardwired loads in 700 buildings in school districts, colleges, local governments, office buildings, and sporting venues.

Bert has collected lots of data about how many and what kinds of devices are found in different types of buildings along with specifics about energy consumption and usage patterns for different devices.

Based on conversations with ESCO partners building operators and BAS vendors, we know these loads are not well understood. Whether it’s information about which devices use the most energy or potential energy savings, we’re ready to share what we’ve learned in this blog.

Small Loads Add up to Big Energy Expenses

Even though the individual loads are small, miscellaneous electric loads are the fastest growing, and often the largest source of energy usage in commercial buildings.

To put these loads into context:

According to the Department of Energy, devices with non-traditional end uses consumed over 7 quadrillion BTU in 2012. That’s enough dynamite to carve Mount Rushmore 135,800,000 times, according to the Department of Energy’s Direct Currents Energy Unit Calculator which uses alternative energy units to make energy consumption easier to understand.

The Energy Information Administration Annual Energy Outlook (AEO) 2015 forecasts that primary energy consumption from commercial MELS will grow 27% from 2016 to 2030 and the. contribution of commercial MELs to total building energy consumption increases from 36% in 2016, to 43% in 2030 under its business-as-usual scenario.

Standby or overnight loads associated with MELs account for more than 100 billion kWh and $ 11 billion in annual energy costs in the United States alone, according to Energy Star®. That’s the same amount of energy used in 6,116 Moon Landings.