REV110619
SimpliPhi Power, Inc. | 3100 Camino Del Sol | Oxnard, CA 93030, USA | (805) 640-6700 | info@simpliphipower.com |
SimpliPhiPower.com
| 42 |
Time of Use Selling / Energy Arbitrage
Discharge batteries to power circuits during specific set times. Program these times to coincide with the
utility company’s peak pricing times to avoid high energy charges from the utility.
Homeowners who have a net energy metering agreement with the utility company can use both
Grid Sell
and
Time of Use Selling
modes to sell solar PV and battery energy (until the minimum programmed SoC
percentage level) back to the grid during peak sun-hour times and then discharge the batteries during
programmed times, usually in the afternoon and evening. Depending on whether
Limited power to load
or
Limited Power to Home
is enabled, the batteries will power either the essential loads sub-panel only
(
Limited to Load
) or the essential loads sub-panel and the main house breaker panel (
Limited to Home
)
during the
Time of Use Selling
time period. Make sure to size the battery accordingly. (Refer to the
Discharge Example in the
Grid Sell / Grid-Tied with Battery Backup
section of this Guide for battery bank
sizing when batteries power the essential loads sub-panel only. Refer to the Discharge Example in Section
3 of this Guide for battery bank sizing when the batteries power both the essential loads sub-panel and the
main house breaker panel.)
Homeowners who do not have a net energy metering agreement use both
Limited Power to Home
and
Time of Use Selling
modes to prioritize powering all loads (circuits both on the essential loads sub-panel
and the main house breaker panel) from the solar and/or batteries during programmed times. Refer to the
Discharge Example in Section 3 of this Guide for battery bank sizing when the batteries power both the
essential loads sub-panel and the main house breaker panel.
NOTE:
Either the Grid Sell or the Limited Power to Home mode (check the appropriate box in the
Grid Setup / Grid Param menu) must be used in conjunction with Time of Use Selling.
During
Time of Use Selling
times, loads are powered from solar first (if available), batteries second, and
the grid third (if batteries have discharged to their programmed minimum SoC percentage level).
Make sure the
GridCharge
box is
unchecked
during peak pricing times so that the batteries do not charge
when energy from the utility company is most expensive (see Figure 7).
Figure 24.0
– Limiter Tab in Grid Setup Menu
