Inland Power & Light Company Rate Selection Guide
Inland Power & Light is Washington's largest member-owned electric cooperative, serving roughly 47,000 accounts across eastern Washington and northern Idaho. Customer data access runs through the NISC SmartHub portal; the coop offers no Green Button, public API, or formal third-party data program.
Inland Power & Light Company Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| General Commercial | Commercial | $0.089/kWh + $9.58/kW demand (>50 kW); $37.09-$51.96/mo service | Small to mid-size commercial members under 50 kW demand |
| Large Commercial | Commercial | $0.0725/kWh + $9.58/kW demand (>50 kW); $559.00/mo service | High-volume commercial loads above 50 kW |
| Small Irrigation (<75 HP) | Agricultural | $0.0866/kWh; $37.09-$51.96/mo service | Smaller irrigation pumping loads |
| Large Irrigation (75+ HP) | Agricultural | $0.0736/kWh + $8.09/HP/yr + $7.98/kW demand; seasonal energy | Large irrigation loads with managed seasonal use |
Market Overview
Inland Power & Light is a nonprofit electric cooperative serving Washington and northern Idaho. Rates are set by the member-elected board of trustees, not a state PUC, and there is no competitive retail supplier choice. C&I members take bundled service under published cooperative rate schedules.
Need to pull your actual usage data to compare rates? See the Inland Power & Light Company Data Access Guide →
Current Rate Schedules
Inland Power's published commercial and irrigation rate schedules are effective April 1, 2026. The General commercial schedule combines a service availability charge, a $0.089/kWh energy charge, and a $9.58/kW demand charge on demand over 50 kW. Large Commercial customers pay a $559.00/month service availability charge, $0.0725/kWh, and the same $9.58/kW demand charge. Irrigation classes carry seasonal energy charges.
Effective: April 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| General Commercial | commercial | General commercial and small business members. | Service availability charge $37.09/mo single phase or $51.96/mo three phase; energy charge $0.089/kWh; demand charge $9.58/kW on demand over 50 kW. | — |
| Large Commercial | commercial | Larger commercial members with higher demand. | Service availability charge $559.00/mo; energy charge $0.0725/kWh; demand charge $9.58/kW on demand over 50 kW. | — |
| Small Irrigation (<75 HP) | agricultural | Agricultural irrigation pumping loads under 75 HP. | Service availability charge $37.09/mo single phase or $51.96/mo three phase; energy charge $0.0866/kWh. | — |
| Large Irrigation (75+ HP) | agricultural | Agricultural irrigation pumping loads 75 HP and above. | Energy charge $0.0736/kWh; HP charge $8.09/HP annually; demand charge $7.98/kW; seasonal energy May-Sept $0.0487/kWh and Oct-April $0.0603/kWh. | — |
| Outdoor / Street Lighting | commercial | Outdoor and street lighting service (standard and high density). | Standard $17.65/mo and high density $20.45/mo depending on lumen level. | — |
Rate Recommendations by Use Case
Mid-size commercial facility near 50 kW demand
Facilities operating close to the 50 kW demand threshold should prioritize peak management to avoid or minimize the $9.58/kW demand charge.
The demand charge only applies above 50 kW, so staying under the threshold avoids demand billing entirely.
- Stagger startup of large equipment
- Monitor peak demand in SmartHub charts
- Consider load controls to shave peaks
High-volume commercial / light industrial load
Steady, high-consumption loads above 50 kW should evaluate the Large Commercial schedule for its lower energy rate.
The $0.0725/kWh energy rate (vs $0.089/kWh) outweighs the $559/mo service charge at high usage.
- Run a breakeven analysis on monthly kWh
- Track demand to budget the $9.58/kW charge
- Pursue efficiency rebates to lower billed demand
Agricultural irrigation operation
Irrigation members should match their schedule to pump HP and shift pumping toward the lower-cost summer season.
Large Irrigation carries seasonal energy pricing and demand/HP charges; summer pumping is cheaper per kWh.
- Concentrate pumping May-Sept where agronomically possible
- Right-size pumps to control HP and demand charges
- Apply for agricultural efficiency rebates
Energy consultant needing usage data
Consultants should plan for manual data workflows since no API or Green Button exists.
Inland Power has no automated third-party access; data requires member authorization and manual export or a custom agreement.
- Secure written member authorization early
- Request bulk historical exports from business services
- For large accounts negotiate a recurring SFTP/email feed
Historical Rate Trends
Inland Power adjusts rates periodically by board action. The commercial schedules in effect carry an April 1, 2026 effective date; prior commercial rates (e.g., a $33.41 single-phase service availability charge) were in effect as of October 1, 2025.
April 1, 2026
Commercial and irrigation rate schedules updated; General single-phase service availability charge set at $37.09/mo (up from $33.41 effective October 2025), energy $0.089/kWh, demand $9.58/kW over 50 kW.
+11%Overall trend: Rising fixed service charges and energy rates, consistent with regional cost pressures.
Next expected change: Future adjustments at the discretion of the member-elected board; monitor the commercial rates page.
Cost Optimization Strategies
For Inland Power C&I members, the largest savings levers are demand management above the 50 kW threshold and selecting the correct schedule (General vs. Large Commercial) based on load factor.
Manage demand under 50 kW where feasible
For: General and Large Commercial members near the 50 kW threshold
The $9.58/kW demand charge only applies to demand over 50 kW. Staging equipment and peak shaving to stay under or minimize peak demand directly reduces the demand bill.
Choose the right commercial schedule
For: Mid-size commercial members weighing General vs. Large Commercial
Large Commercial's lower $0.0725/kWh energy rate offsets its $559/mo service charge only at higher consumption. Run a breakeven against the General schedule's $0.089/kWh to confirm the lower-cost option.
Shift irrigation load to lower-cost season
For: Agricultural irrigation members
Large Irrigation energy is $0.0487/kWh May-Sept versus $0.0603/kWh Oct-April. Concentrating pumping in the lower-cost season reduces energy cost.
Use efficiency rebates
For: All C&I members
Commercial and agricultural incentive programs offset capital cost of efficiency upgrades that also reduce billed demand and energy.
To implement these strategies, you need your 15-minute interval data. Learn how to download Inland Power & Light Company interval data →
Frequently Asked Questions
Can a third-party energy manager pull our commercial usage data automatically?▾
No. Inland Power has no public API, Green Button, or aggregator integration. A third party must obtain the member's written authorization and either receive exported SmartHub data manually or negotiate a custom data-sharing agreement with the cooperative's business services team.
Does Inland Power support Green Button for C&I accounts?▾
No. Inland Power is not Green Button certified and offers neither Download My Data nor Connect My Data. Interval usage is viewable in SmartHub charts, with downloadable CSV limited to hourly resolution since January 2024.
What interval granularity is available for commercial meters?▾
AMI meters collect 15-minute interval data, but it is only viewable as SmartHub charts. Downloadable CSV is hourly. For bulk 15-minute exports, contact the cooperative directly at (509) 789-1801.
Is EDI available for large commercial billing?▾
No formal EDI program is documented. Business customers needing electronic data interchange should contact Inland Power to discuss case-by-case electronic invoicing or value-added network arrangements.
How long does it take to set up a custom data agreement?▾
Inland Power can negotiate dedicated data delivery for large commercial and industrial accounts; expect roughly 4-8 weeks for negotiation and implementation of the delivery mechanism.
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