How to Determine On & Off Peak Demand Charges and How Much Solar is Allowed?

Synteen

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Mark Cann <mark.cann@hannahsolar.com>Fri, Jul 29, 2016, 12:40 AM
to me

Matt,

When the layout is finalized for Synteen and the ground mount is added, we need to use $.05 for the offset.  I used Evans advice below.  During the on peak months, they are paying around 6.8 cents across the board.  During off peak, they are paying between 3.1 and 3.4 cents.  It averages around 5 cents.

Mark

FW: Duke Power Bills

Inbox

Mark Cann <mark.cann@hannahsolar.com>Jul 22, 2016, 1:03 PM
to me

From: Evan Becka
Sent: Thursday, July 21, 2016 3:46 PM
To: Mark Cann; Drew Cates
Subject: RE: Duke Power Bills

The highest peak I saw was 413 in May so that would be the AC upper limit as long as the kVa of the transformer is above this. The AC upper limit is based on the max peak demand regardless of whether it happens on-peak or off-peak.

I just went to the Duke Energy Progress site and the OPT-TOU rate schedule is no longer listed. I noticed that all the general rate schedules listed were recently updated this month so since these bills are older and we won’t know what new rate schedule they will be on until we get a bill that reflects the new rate schedule, so we are going to have to figure out the cost per kWh the old fashioned way.

To determine the average cost per kWh so we can figure their savings do the following:

For each month, take the on-peak energy cost and divide by the on-peak kWh usage and this will give you the cost per on-peak kWH for that month. Then take the off-peak energy cost and divide by the off peak kWh usage and this will give you the cost per off-peak kWH for that month. Since we cannot refer to that rate schedule to determine what times are on-peak and off-peak for that rate schedule, I would recommend simplifying the brain damage and just use the average of the on-peak and off-peak costs.

You would do this for each month and add up your average costs per kWh for each month and divide by 12 months and this would be the number to use. It will probably end up somewhere around 5 cents per kWh.

Let me know if you have any questions. Here is the link to the new rate schedules/riders should you need them – https://www.duke-energy.com/rates/progress-south-carolina.asp

Evan Becka

Business Development Manager

Hannah Solar, LLC

13 South Main St.

Suite 302

Marshall, NC

404-609-7005 – Office

828-206-4780 – Cell

Hannahsolar.com

evan.becka@hannahsolar.com

Description: hannah logo_newest

From: Mark Cann
Sent: Monday, July 18, 2016 11:45 PM
To: Drew Cates <drew.cates@hannahsolar.com>; Evan Becka <evan.becka@hannahsolar.com>
Subject: FW: Duke Power Bills

Gents,

When you have a chance, I need a second set of eyes on these power bills.  There are lots of on and off peak demand charges.  It looks to me that the largest system they can do is 410AC but that is based on off-peak actual demand.  There is also on-peak actual demand.  Having trouble breaking out any demand charges to get correct $/KWH.

Thanks

Mark

From: Matt Warren
Sent: Monday, July 11, 2016 9:23 AM
To: Mark Cann
Subject: Fw: Duke Power Bills


From: Susan Wolfson
Sent: Monday, July 11, 2016 9:06:59 AM
To: Matt Warren
Subject: Fw: Duke Power Bills


From: Kim Roberts <kim@synteen.com>
Sent: Monday, July 11, 2016 8:55 AM
To: Susan Wolfson
Subject: FW: Duke Power Bills

Susan

I will call and make sure you received

Kim

From: Steve Simmons [mailto:steve@synteen.com]
Sent: Monday, July 11, 2016 8:53 AM
To: Kim Roberts
Subject: Duke Power Bills

Attached are the last 12 Duke Power bills for the 2 accounts.  The “3595” is the plant bill, the “4440” is the office.

Steve Simmons

Synteen Technical Fabrics, Inc.

Controller

1950 West Meeting Street

Lancaster, SC  29720

Tel:  803.416.8336 x28

Fax:  803.416.8344

www.synteen.com

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