![]() ![]() Question: What design/feasibility software do you use?Ĭhristian Mueller: MTU uses the HOMER t ool to model microgrids Then the controller for that(those) resource(s) adjusts the settings of the automatic voltage regulation to properly share reactive power as demanded by the Microgrid controller. The information is gathered within the microgrid controller and then sent to the resource(s) best used to address the reactive power. Question: How do you balance reactive power?īrian Ponstein : In the examples spoken about in the webinar, the reactive power is controlled via the voltage controller on the alternator. What elements of a microgrid would manage the transients produced by engaging and disengaging the different generators, storage and loads to maintain acceptable power quality?Ĭhristian Mueller: Power quality requirements are site specific and are taken into consideration when choosing the mix of generation assets. And the presence or absence of transient spikes/surges. Question: Power quality usually refers to the wave form and phase relationships on the alternating current lines. Ĭhristian Mueller: Typically, the battery supplier offers a recycling program for the batteries at the end of their life. ![]() Unless there are external factors such as government incentives, fuel cells see limited use in micro grids compared to other technologies. Question: Any thoughts regarding the use of fuel cells?Ĭhristian Mueller: Capital cost for fuel cells remains very high compared to other technologies. Question: Is there an explanation as to how wind power “could reduce severity of storms”?īrian Ponstein : Please see this article for more information We will talk more about this in Microgrids 201: Integrating renewables and battery storage into your power solutions. If electricity generation from wind or solar drops, reciprocal engines can be started to produce power. Question: Discuss mixing solar and wind with reciprocal engines for microgrids.Ĭhristian Mueller: Reciprocal engines are a perfect fit to complement solar and wind. Turbines are used in larger plants or where production steam is the priority Question: What percentage of microgrids use reciprocating engines for combined heat and power and what percentage use turbines for combined heat and power and why?Ĭhristian Mueller: Most installations less than 10 megawatts will use reciprocating engines as they are more flexible in operation and have higher fuel efficiency compared to turbines. ![]()
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