Load Shedding And Demand Control For Large Companies In California
Load shedding is a means of reducing demand usage in a facility and will reducing energy usage by up to 20%
. Many times demand charges exceed 50% of the total electric power bill. This makes demand control a very attractive option to reduce operating costs.
What is Load Shedding?
Load shedding is the total amount of electricity being used by a consumer during a defined time period. By performing demand control, huge savings can be achieved.
Demand varies from hour to hour, day to day and season to season. This usage that is expressed in kilowatts (not kilowatt-hours) and is called the demand peak on the system.
The utility records demand over a 15-minute time period. The company is charged for the highest 15-minute usage recorded on the demand meter. After the utility reads the meter each month, demand is reset to zero and the meter starts over, recording the highest 15-minute usage for the next billing period. You will see this charge on your power bill.
1.kva charge
2.kWh charge (not kW)
3.demand charge
4.demand usage
The demand charges many times exceed 50% of their total electric bill. This makes Load Shedding very attractive to reduce companies operating costs.
How Does Load Shedding Work?
In order to reduce demand peaks in a facility, the Maximum Demand Controller monitors the main utility meter in the facility and by measuring every 5 minutes the demand usage, the Demand Miser will perform automatic load shedding when it notices a demand peak is coming. Shown below are example loads that would be connected for demand control:
1.Compressors
2.Fan Motors (with variable speed systems)
3.Electric Heaters
4.Pumps
5.Air Conditioners & Others
Demand Usage Reporting
Advanced reports show the demand usage and loads being shed for each location. If you would like to reduce load shedding, you can automatically adjust the threshold until you are comfortable with the values.
Graphing capabilities provide information such as daily, monthly, yearly demand usage and can be easy glanced over using various line chart, bar, or pie.
The Demand Miser provides a graph that compares demand usage by location, size, operation, hours etc. A demand usage profile of one facility can be compared with another. This data can be used to negotiate contracts for energy usage and to reward facilities that have reduced their overall energy usage.
Notification & Alerts!
Alerts and notifications can be configured to notify what loads were shed and period of time and current peak demand that can be easily compared to previous demand peaks.
Automatic Load Adjustment
The web interface is easy to use for setup and load shedding configuration.
Custom load limits can be set for each month providing more control. The demand controller has an algorithm that automatically increases the load limit if more energy is needed for the building eliminating excessive demand shedding.
Access Multiple Locations
The Demand Miser Maximum Demand Controller is the only system on the market that can remotely connect to other locations that have Demand Controllers installed.
For companies that have multiple locations, energy managers can easily view data and configure systems from a single location via the web interface.
Pages demand response programs offer incentives for business owners who curtail their facilitys energy use during times of peak demand. Find out how your business can benefit and help make a difference in the states energy well being
Incentives for Demand Controller in California
EG Energy Controls can assist companies by offering sophisticated demand controllers that can be used in Peak Day Pricing initiatives.
What is PDP?
Peak Day Pricing is a Time Varying Pricing Plan.
Peak Day Pricing (PDP) is a pricing plan that encourages customers to conserve energy when temperatures, market prices, capacity or grid reliability conditions exist, typically on hot summer afternoons. On this plan, participants will see additional charges during peak hours (weekdays from 2 6 p.m.) on a limited number of Event Days throughout the year. In exchange, they will receive credits (varies by tariff) for usage throughout the summer. Customers who can reduce their load during these high cost periods, or shift load from higher cost to lower cost periods, may benefit on this plan. Tariffs differ and not all customers receive credit for all usage.
To learn more about how PDP may impact your account, please roll over and click the icon, above, that represents your business type.
Why does PG&E offer Peak Day Pricing?
This pricing plan is part of a statewide initiative led by the California Public Utilities Commission (CPUC) to reduce peak energy demand, which:
Helps to stabilize the energy grid, thus avoiding power interruptions
Reduces power plant load capacity
Reduces greenhouse gases as a result of energy use
By making this plan available to our customers, we aim to encourage and help customers to reduce their energy consumption during peak periods, and help them save on electricity costs.
Transitioning to Peak Day Pricing
For eligible accounts, PG&E will transition customers from their current pricing plan to PDP. Affected customers will be provided multiple notices in advance of their transition date, and all customers will be able to opt-out of PDP to another time-varying pricing plan or alternative demand response program.
Customers will automatically transition to PDP depending on business type and certain eligibility criteria. Roll over the icons in the header above to see when businesses like yours are scheduled to begin transitioning to PDP. For your specific account to be eligible for transition, you must have 12 months with an interval meter (e.g. a Smart Meter device). Customers who participate in Direct Access or other Demand Response programs will not automatically transition to PDP. Net metered customers are not eligible for PDP. Additional exceptions apply.
by: Brad Hingerson
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