View Energy Consumption

Energy Consumption displays energy savings and energy usage for the day. Energy savings are equal to the difference between the baseline energy consumption and actual energy consumption. The baseline energy consumption can either be determined at the fixture level using the Fixture-Level Energy Savings method or at the floor, building, campus, organization level using the  Contractual Baseline Energy Savings method.  

To view energy savings, select a facility in the left panel and click the Energy Consumption tab. By default, the dashboard shows data for the day for the organization, building, or floor. To change the duration period, select a specific date range from the calendar on the dashboard's top-right corner or quickly customize to show weekly, monthly, quarterly, yearly, or custom time intervals for all fixtures or plugloads. You can monitor and measure the usage in USD, kWh, or C0emissions.

The total building energy savings is displayed under three categories: Task Tuning, Daylight Harvesting, and Occupancy. The panel displays a summary of

  • Period Savings – Total amount saved by all the fixtures in this space during the selected time period through the combination of Task-Tune Savings, Occupancy Savings, and Daylight Harvesting Savings. See savings calculations (PDF).
  • Period Consumption – The total amount of energy consumed by all fixtures in this space during the selected time period.
  • Period Peak Load – The actual average rate of energy consumption over the last 5-minute interval.
  • Current Load –  The actual peak 5-minute average rate of energy consumption over the selected period.
  • Current Baseline – The estimated average energy consumption rate over the last 5-minute interval, based on fixture baseline load configurations.

The Period Energy graph shows the savings realized across all savings categories (i.e., Task-Tune Savings, Occupancy Savings, Daylight Harvesting Savings) against the cost to power all the fixtures in this space throughout the selected time period. The following figure shows the display for all fixtures on a floor for a day based on the Fixture-based energy savings method.

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The energy savings are divided into the following four categories.

  • Task Tuning Savings – Savings realized by reducing energy consumption in a space due to manual overrides and applying task-specific lighting profiles to fixtures, providing just enough light levels for occupants to perform their daily tasks.  
  • Occupancy Savings – Savings realized by reducing energy consumption due to lights and outlets being switched off when the space is vacant. Lights are turned on only when occupancy is detected.
  • Daylight Harvesting Savings – Savings realized by reducing energy consumption in a space through lights being dimmed when there is enough available natural light. As daylight levels increase, light levels automatically decrease to save energy.
  • Consumption (red) – Represents the current energy being used. 

Hovering the cursor over the graph shows the savings realized across all savings categories against the cost to power all the fixtures in this space by the hour. You can save the Energy Consumption details to a PDF or export to a CSV file.

  1. Go to Facilities > Energy Consumption.
  2. Click Export to export the details to an Excel file format (CSV) and select the location to save the file.

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Downloads:

Fixture-Level Energy Savings

Energy Consumption displays energy savings and energy usage for an organization. Energy savings are equal to the difference between the baseline energy consumption and actual energy consumption. The baseline energy consumption can either be determined at the fixture level using the Fixture-Level Energy Savings method or at the floor, building, campus, organization level using the  Contractual Baseline Energy Savings method.  

The Fixture-level Energy Savings is the default method used for calculating energy consumption and savings for a fixture or plugload. Energy savings are calculated against a reasonable estimate of the baseline or on the type of fixture.

Setting Fixture-Level Energy Savings

If a ballast Baseline Load has been determined manually for the ballast, use that value as the baseline for all fixture types with similar ballast. If the ballast Baseline Load has not been defined, then use the Ballast Wattage as the fixture's baseline. See Calculating Baseline for Ballasts (available only for Enlighted) for details.

To set the ballast Baseline Load and Ballast Wattage parameters,

  1. Navigate to Administration and select System Management.
  2. Select the Fixture Type Management tab.

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The following screen is displayed, listing the type of ballasts available.

  1. Select the desired ballast and click the Edit button to open the Edit Ballast window.

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  1. In the Edit Ballast window, enter the predefined established Ballast Baseline Load value in the Baseline Load field and ignore the remaining fixture type fields.
  2. Click Save to save the information in the database. The system will use the Ballast Baseline Load (predefined established Baseline Load) to calculate energy savings.

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  1. If the Ballast Baseline Load has not been defined, then the Ballast Wattage is used as the fixture's baseline. Leave the Baseline Load field empty.
  2. Click Save to save the information in the database.

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To view energy savings for a fixture, select the fixture in the Floor plan view and double-click to view the Fixture Details screen.

  1. Select the Energy Summary tab.
  2. Find the Current Baseline savings on the right-hand side of the screen.

Fixture_energySavings.png

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Contractual Baseline Energy Savings

Energy Consumption displays energy savings and energy usage for an organization. Energy savings are equal to the difference between the baseline energy consumption and actual energy consumption. The baseline energy consumption can either be determined at the fixture level using the Fixture-Level Energy Savings method or at the floor, building, campus, organization level using the  Contractual Baseline Energy Savings method. 

Setting Contractual Baseline Energy Savings

If the energy baseline is stipulated in the customer’s sales contract, use the contractual baseline energy savings method to determine savings. 

It is recommended to set the baseline for each level in the organization, such as campus, building, and floor level. If the baseline savings are set for a facility or campus, the savings will be shown only for the facility or campus and the breakdown by buildings, floors, or fixtures will not be displayed.  

When the Contractual Baseline Energy Savings is set for a building, all buildings on the campus will inherit the value. It cannot be altered at facility levels above or below. If you want to change the facility level at which the baseline savings is calculated, uncheck the Energy Savings Calculation Method for the facility, save, and then set it at another facility level. The Baseline savings stipulated will then be used to calculate savings.

The system or facility admin may set contractual energy savings. To set contractual energy savings for a facility,

  1. Select a facility in the left-panel facility tree. 
  2. Navigate to the Settings tab.
  3. Check the option Contractual Baseline Energy Savings.
  4. Enter a kWh value in the contract for the building in the Annual Baseline Energy Consumption field.
  5. Click Save to save the information.

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To view the current baseline for a building, select a building in the left Facilities panel, and click the Energy Consumption tab to view savings.

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Plugload Load Energy Savings

The plugload baseline energy consumption is set when a plugload is commissioned. The savings from energy consumption are calculated with reference to the predefined established baseline load. If you do not set a baseline, the system will estimate the baseline. It can later be changed by following the steps below:

  1. Select the Devices tab.
  2. Select the Plugloads tab. The plugload table lists all discovered and commissioned plugloads. To Commission and Discover Plugload, refer Adding Plugload.
  3. Once the Plugload is commissioned, the Edit option is available. Select a plugload instance from the table, and click the Edit button in the Action column.

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  1. Type the Plugload Baseline Load value in Watts in the Plugload Details pop-up screen.
  2. Click the Apply button to save changes.

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Manage will use this Baseline Load to calculate energy savings.

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Carbon Dioxide (CO2) Emission

The Energy Consumption dashboard in Manage displays energy savings, energy usage, and its equivalent C02 emission for the selected period. In the Energy Consumption dashboard, you can monitor and measure energy usage by Cost in dollars, Energy in kWh, or CO2  emissions. Refer to the View Energy Consumption for viewing energy or C02 emissions in a facility. 

The procedure for calculating CO2 emissions used in the Manage application has been explained below. However, the CO2 emission formula varies by geography, so refer the website for your specific region for more details.

To view the CO2 emission values in the Energy Consumption Dashboard and calculate the CO2 emitted, follow the procedure below.

  1. Select a facility in the left panel and click the Energy Consumption tab. 
  2. Select CO2 from the menu to display CO2 emissions in the dashboard.

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  1. Select the duration period. By default, CO2 emission is displayed for the last 24 hours.

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Calculating C02 Emission in Pounds (lbs)

Use the following formula to calculate CO2 emission in pounds:

  • Energy Saved (KWh) x 0.00068956 x 2204.6

Since the formula uses energy saved in kWh, the first step is to determine the energy consumption in kWh value.

  1. Select a facility in the left panel and click the Energy Consumption tab.
  2. Select the duration period.  
  3. Select Energy from the drop-down list. 

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The graph shows the energy consumed in kWh for the day and time. 

  1. Note the Consumption value that is displayed in the data. For example, on Sunday, at 12 am, the energy consumed is 315.2 kWh.
  2. Substituting the Consumption value in the formula:
    315.2 x 0.00068956 x 2204.6 = 479.16 pounds
    The C02 emission is approximately 479 pounds.

Go to the Energy Consumption and select CO2 from the drop-down list to verify the calculation.

The value of CO2 emitted for the duration is 479 lbs., as per the calculation.

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Calculating CO2 Emission in Tons

Use the following formula to calculate CO2 emission in tons:

  • Energy Saved (KWh) x 0.00068956
  1. Select a facility in the left panel and click the Energy Consumption tab.
  2. Select the duration period.  
  3. Select Energy from the drop-down list. 
  4. Note the Period Consumption value that is displayed in the dashboard. For example, the energy consumed from Jan. 1, 2019, to Dec. 31, 2020, the energy consumed is 762 kWh.

Consumption_1.png

Substituting the Consumption value in the formula:
776.2 * 0.00068956 = 0.535 tons.
The C02 emission is approximately 0.535 tons.

Go to the Energy Consumption drop-down and select CO2 from the list to verify the calculation.

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Refer to the highlighted value in the following image. The value of CO2 emitted is 0.535 tons, as per the calculation. 

Consumption_2_tons.png

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Set up Soft Metering

Note: Soft Metering is a custom feature that is not available by default. This is an Admin enabled function; either contact your facility administrator or Enlighted Support to enable the Soft Metering function.

Enlighted offers energy savings by controlling and measuring the power consumption of each fixture. Typically, the Enlighted Control Unit controls the lighting behavior by interfacing with the Enlighted sensors and connecting to the ballast or 0-10V LED driver. By controlling and measuring each fixture's actual power consumption, facility administrators can readily view savings in energy usage and cost. The energy data displays building energy and lighting usage in Watts, helping facility owners to view and manage energy consumption.

However, some lower-cost fixtures do not provide the necessary means to measure actual consumption. Enlighted supports these types of fixtures via Soft Metering. Soft Metering uses a Power Value table for a given fixture type. The table provides a power value for a given dim level in 5% increments. The power values are determined by a characterization procedure involving the fixture manufacturer and driver manufacturer with Enlighted Support. The Power Value Table is then uploaded to Manage.

Uploading the Power Value Table

For each fixture type, the Power Value Table (PVT) obtained from the fixture manufacturer must be uploaded to Manage. The system calculates the relevant power consumption for the soft-metered fixture using the Power Value Table.

  1. Navigate to Administration and select System Management.
  2. Click the Fixture Type Management tab to view a list of all ballasts in the lighting network.
  3. Check the Show Used Ballasts checkbox to filter and view the list of ballasts for the facility. 

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To upload the PVT,

Step 1: Click the Import button. The Upload Ballast Volt Power Curve window appears. 

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Step 2: Select the Input Voltage of the ballast from the drop-down list.  

Step 3: Click Choose File, and select the PVT file provided by the manufacturer. 

Step 4: Click the Upload button. 

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The PVT file gets uploaded.

Enable or Disable Soft Metering

Only Facility Administrators or Enlighted Support can view and enable or disable the Soft Metering function.

  1. Navigate to Administration and select System Management.
  2. Scroll down to Soft Metering Flag.
  3. Check the Enable/Disable checkbox of the Soft Metering Flag.

settingup_soft_metering_1.png

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Manage Reports

This article describes the procedure to generate reports. Four report types are available in the Reports menu in Manage, which are:

  • Gateway Outage – shows gateways that are non-operational for a selected facility item.
  • Audit Log – shows the system audit log.
  • Inventory – shows the number of fixtures, lamps, ballasts, and other devices for a selected facility item.
  • ERC Battery – shows the battery levels for ERCs for a selected facility item

Gateway Outage Report

The Gateway outage report shows the gateways that are out within the selected facility item in the facilities navigation tree in the left panel.

  • Click on the Reports > Gateway Outage Report menu. The following is an example report for a floor:

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  • Click Save as PDF to save the report in PDF format. When the button is clicked, you will be prompted for a directory and filename for the PDF file.

When the facility is not a floor (or area), then the report does not include a floor plan, as shown in the following example:

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Audit Log Report

For each action initiated by a system user (including signing in), an audit log entry is created. All user roles, except Employee, can view this log. To know more information about audit log entries, refer to the article Monitoring Audit Log.

Inventory Report

The Inventory report shows the number and types of sensors, along with the types of ballasts and drivers for the entire facility. You can export the report to an Excel file (CSV) format and view the file.

Click on the Reports > Inventory Report menu to see the report. The following is an example report:

Inv_Report.png

ERC Battery Report

The ERC battery report shows the battery levels for ERCs for the entire facility. 

  • Click on the Reports > ERC Battery Report to select this report. 

An ERC Battery report can be scheduled to be generated automatically and sent by email. To do so,

  1. Select Enable in the Scheduler tab.
  2. Type the recipient's email address in the Email field.
  3. Schedule the time and day when the ERC report needs to be generated by clicking, and selecting a time from the clock pop-up.
  4. Select the days the report should run each week recurrently. For example, if this report should be generated twice a week every Tuesday and Thursday, place a check in the box of those days.

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Power Value Table - PVT

Download the PVT.csv file. The PVT.csv template file has rows for the light dimming levels (0-100%) in 5% increments. Given below is a sample template file. To fill in the numbers in this template, follow the procedure described below: 

  1. Attach the Enlighted sensor to the OEM's fixture connected to an AC power meter. The meter will provide the wattage reading for the fixture.  
  2. Make sure that the sensor is commissioned; otherwise, refer to the article commission the sensor in Manage.
  3. Double click on the sensor and open the Fixture Details screen.

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  1. Set the slider to 100% and note the meter reading. Enter the value for 100% light level in Row 28, Column B in the template.

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  1. Drag the slider to set the dimming level in 5% increments, and note the power meter reading for every 5% increment.
  2. Fill in the rows from 8 through 28.

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  1. Fill in the information for rows 1 through 6. If you are unsure of the information, verify the Fixture Details screen, and fill in the information in the template.

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  1. For column C 'Include', leave the '1's in the table. The values in this column inform Manage not to skip reading the power value.

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  1. In addition, leave the extra '1' at the end of the table in column D, as it indicates the end of the table.

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  1. After filling in the attached file, upload the .csv file to Manage. Refer to the article Set up Soft Metering.

The following is a sample screen of the PVT table.

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