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Subject: [OASIS Issue Tracker] Commented: (EMIX-95) 336 - Is it meant to beimplied that Block Energy is at an exact and consistent delivery rate?



    [ http://tools.oasis-open.org/issues/browse/EMIX-95?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=20090#action_20090 ] 

Edward Cazalet  commented on EMIX-95:
-------------------------------------

Energy delivered at constant power (rate of delivery ) over a delivery period.
An amount of energy delivery over an delivery period with a maximum rate of delivery.
A metered amount of energy over a delivery period.
Regarding the question 
Is it meant to be implied that Block Energy is at an exact and consistent delivery rate? 

As an example consider a forward transaction for 10 MW of power over all 24 hours of a day (24 MWh of energy).  If the metering is hourly, than it is expected that 10 MWh will be delivered in each hour of the day.  Any energy more or less than that amount in each hour will be settled as imbalance energy, typically by an ISO at an hourly price.  Within the hour there is no equipment that the rate of delivery be constant because only the average rate is recorded by the meter.

If the metering is every 5 minutes, then  it is expected that 10*(60/5) MWh will be delivered in each 5 minute period.  Any energy more or less than that amount in 5 minute period will be settled as imbalance energy, typically by an ISO at a 5-minute real-time price.  Within the 5-minute periods there is no equipment that the rate of delivery be constant because only the average rate is recorded by the meter.

Is that indeed part of the market description of a product today (or anticipated)?   This is essentially how ISOs and RTOs and most wholesale markets operate.


> 336 - Is it meant to be implied that Block Energy is at an exact and consistent delivery rate?
> ----------------------------------------------------------------------------------------------
>
>                 Key: EMIX-95
>                 URL: http://tools.oasis-open.org/issues/browse/EMIX-95
>             Project: OASIS Energy Market Information Exchange (eMIX) TC
>          Issue Type: Improvement
>          Components: spec
>    Affects Versions: wd06
>         Environment: SGIP PAP03 and Bill Cox
>            Reporter: Toby Considine
>            Assignee: Toby Considine
>
> Is it meant to be implied that Block Energy is at an exact and consistent delivery rate? Is that indeed part of the market description of a product today (or anticipated)? Is it captured in Min/Max rate on 346?

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