The transformation towards a sustainable power system calls for new ways of operating the network. In that regard, electric vehicles (EVs) with their charging infrastructure qualify as flexible resource. This paper interconnects ancillary services and EV flexibility to help operators (SOs) providers understand role localize EV-chargers in system. First, focus is on SOs. manuscript reviews based...

In an effort to push for low-carbon transition, national governments and regulatory authorities are working define market structures legislative frameworks able effectively support the spreading of electricity production from renewables. To this purpose, opening Ancillary Services Markets (ASMs) Distributed Energy Resources (DERs) plays a key role. However, pricing schemes rules in place (e.g.,...

Plug-in electric vehicles could offer flexibility for wind power and an attempt was made to quantify the effect with a power system model Wilmar. Wilmar simulates unit commitment and dispatch using mixed integer programming and includes wind power and load stochasticity as well as a module for plug-in electric vehicles. Forecast errors of wind power increase the need for balancing and ancillary...

PURPOSE State variation in inclusion of ancillary services in daily Medicaid nursing home reimbursement rates, versus covering ancillary costs outside of such rates, makes rate comparisons difficult. The purpose of this study is to adjust for inclusion of ancillaries when comparing Medicaid rates across states. DESIGN AND METHODS Data for 1987-1998 were drawn from a national survey of Medicai...

With higher penetration of renewable energy sources like wind energy, its utilization for the provision of ancillary services in the form of frequency and voltage regulation is imminent. This paper deals with the capability of wind energy to provide these services in a microgrid environment with the consideration of different generation mixes of wind and conventional energy. A novel hysteresis ...

The unbundling of rate structures and ancillary services, combined with escalating demands of the “always connected” consumer, have made the similarities between airlines and retail more significant than ever. Retail and airline customers are influenced by many of the same factors. The two are increasingly comparing and contrasting products and researching their options before making purchases....

In a de-regulated open access environment, reactive power is one of the ancillary services which must be provided by an Independent System Operator (ISO). In this paper, a new algorithm is proposed in which reactive power resources are initially so tuned that optimum security in terms of voltage profile and voltage stability are achieved while at the same time, the system losses are minimized. ...

Traditionally, conventional generation unit was used to provide ancillary services e.g. reactive power support, and spinning reserve. Nonetheless, with the emergence of highly penetrated distributed energy resources (DERs) systems and considering how beneficial they can be; it appears reasonable to use them as reactive power providers. Therefore, this paper introduces a new procedure for DERs t...

Hospital cost analyses generally have not used costs broken down by hospital department or function due to the unavailability of appropriate data. The Medicare Cost Reports display direct cost by cost center, and the Health Care Financing Administration (HCFA) funded a project to abstract, edit, and categorize these data from a sample of 457 hospitals into meaningful groups. The author used the...