What is distributed energy resource (DER)?
Distributed energy resources (DER) refers to often smaller generation units that are located on the consumer’s side of the meter.
What are the samples for a DER?
– Roof top solar photovoltaic units
– Wind generating units
– Battery storage
– Batteries in electric vehicles used to export power back to the grid
– Combined heat and power units, or tri-generation units that also utilise waste heat to provide cooling
– Biomass generators, which are fuelled with waste gas or industrial and agricultural by-products.
– Open and closed cycle gas turbines
– Reciprocating engines (diesel, oil)
– Hydro and mini-hydro schemes
– Fuel cells
Is Microgrid a distributed energy resource?
A Microgrid is a group with clearly defined electrical boundaries of low voltage distributed energy resources (DER) and loads that can be operated in a controlled, coordinated way either connected to the main power network or in islanded mode.
Millions of distributed energy resources (DER), big or small, will co-exist as sources of energy. The existing grid will fade out as DER become the dominant sources of energy. Non-traditional producers of energy comprise the new “grids”. The current power infrastructure is unable to handle the complexity of the new energy flow patterns.
Microgrid can potentially balance itself in terms of demand and supply, given the presence of distributed generation (DG) like rooftop solar system and higher capacity lithium battery. If the management of the energy supply / demand can be confined within each microgrid, the complexity behind a new power infrastructure with millions energy contributors is reduced. Energy storage is affordable enough to help us confine the energy flows and achieve the balance among the supply and demand within the microgrid.
For microgrid applications, with or without grid connection, a dedicated IEEE 2030.5 “utility” server can be added to the control network, which runs the TCP/IP and may or may not be connected to the INTERNET, so that energy can be exchanged among the neighbors. Please note the microgrid operator controls the utility server running the IEEE 2030.5 protocol. The electric utility, if connected, has no control of the server or these battery storage systems. All NetZero+ has built-in SunSpec certified IEEE 2030.5 Client. The license for the unique secure address may have to be purchased from authority.
Potential Obstacle: Resistance From Utilities
POMCube has started building off-grid microgrids and preparing them for interconnection. We take the same technologies to transform grid-connected residential customers in communities, who have been paying higher and higher network delivery fee (transmission and distribution, T+D) for using electricity. These customers in communities will form new microgrids. As more utilities customers join microgrid systems, energy network fees will rise sharply and induce more customers to rely less on utilities and more on self-sufficient energy systems. (Prisoner’s Dilemma)
Contact us to know what you can do with DER to save your electricity costs.