EnerSys OutBack Power SkyBox, Руководство пользователя

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900-00272-01-001 Rev A
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Energy Arbitrage
(aka: I just want my utility bill to shrink already!)
Time of Use
The time of use (TOU) function in the SkyBox is meant for those in areas with energy rates that go up and
down depending on the time of day. Mostly, these expensive times are when you’re most likely to be home —
a few hours in the morning and several in the evening. This function allows you to use the utility power when
it’s cheap and use your battery when utility power is expensive.
How does the SkyBox know what your utility rates are? How about the cost of your battery? Unfortunately,
the SkyBox isn’t quite so advanced that it can read your mind so … you have to tell it these things.
When configuring the SkyBox for time of use operation, the best AC profile is Net metering with backup .
Then, you’ll want to make sure the Enable time of use rates toggle is set to
Yes
. Once this is done, you’ll
have access to the schedule. At first, this is presented as 32 blank schedule blocks, the first of which is shown
in Figure 17. Don’t worry! You only need to fill as many as you need. The rest are ignored.
Figure 17 Time of Use Settings
NOTE:
You could read the following paragraph and look through all the equations to understand this
function. Or you could watch a four minute video (
link 10 ) on the WattSchool YouTube channel.
Start your schedule with midnight as the start time, then build the rest of your schedule from there to midnight
again. Apply all changes. Navigate back to the grid configuration menu by using the back arrow. This will
bring up a message asking if you want to discard any (unsaved) changes. Select yes. In this case, you don’t
have any unsaved changes once you hit save on the individual schedule block.
The last piece of information the SkyBox needs from you is the cost of your battery, or more accurately, the
cost of using your battery. This is the
Levelized Cost of Energy (LCOE) value. Here’s the formula:
𝐿𝐶𝑂𝐸
𝑘𝑊ℎ
𝑇𝑜𝑡𝑎𝑙 𝐶𝑜𝑠𝑡 𝑜𝑓 𝐵𝑎𝑡𝑡𝑒𝑟𝑖𝑒𝑠
𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝐵𝑎𝑡𝑡𝑒𝑟𝑖𝑒𝑠 𝐵𝑎𝑡𝑡𝑒𝑟𝑦 𝐶𝑎𝑝𝑎𝑐𝑖𝑡𝑦 𝐿𝑖𝑓𝑒𝑡𝑖𝑚𝑒 𝐶𝑦𝑐𝑙𝑒𝑠 𝐸𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑐𝑦
Equation 1 LCOE
10