Washington Rates
Rate recaps and history
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History
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Current tariffs / rate schedules / prices
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Index
01 Residential service
07 Time-of-Use – Residential Service
08 Time-of-Use with Morning Discount – Residential Service
11 General Service
12 Residential and Farm General Service-Washington
13 Optional Commercial Electric Vehicle Rate – General Service
17 Time-of-Use – General Service
18 Time-of-Use with Morning Discount – General Service
21 Large General Service - Washington
22 Residential and Farm Large General Service-Washington
23 Optional Commercial Electric Vehicle Rate – Large General Service
25 Extra Large General Service - Washington
31 Pumping Service - Washington
32 Residential and Farm Pumping Service-Washington
42 Company Owned Street Light Service - Washington
44 Customer Owned Street Light Energy & Maintenance Service -High-Pressure Sodium Vapor- Washington
45 Customer Owned Street Light Energy Service - Washington
46 Customer Owned Street Light Energy Service - Washington
47 Area Light - Washington
48 Residential and Farm Area Lighting-Washington
51 Line Extension Conversion & Relocation Schedule - Washington
53 Temporary Service - Washington
58 Tax Adjustment Schedule - Washington
59 Residential & Farm Energy Rate Adjustment - Washington
61 Participatory Funding – Washington
62 Small Power Production and Cogeneration - Washington
63 Net Metering Option Schedule - Washington
64 Clean Energy Implementation Plan - Washington
65 Interconnection Standards - Washington
66 Insurance Expense Balancing Account – Washington
70 Washington - Rules and Regulations - Washington
73 Residential Debt Relief Program
74 Temporary Federal Income Tax Rate Credit
75 Decoupling Mechanism - Washington
77 Electric Transportation
80 Meter Reading and Billing Practices - Washington
84 Peak Time Rebate
85 Service Quality Measures Program - Washington
87 Voluntary Solar Select Program - Washington
88 Wildfire Expense Balancing Account - Washington
89 Fixed-Income Senior & Disabled Residential Service Discount Rate - Washington
90 Energy Efficiency Programs - Washington
91 Demand Side Management Rate Adjustment - Washington
92 Low Income Rate Assistance Rate Adjustment - Washington
93 Energy Recovery Mechanism – Washington
95 Optional Renewable Power Rate - Washington
97 Renewable Generation Incentive - Washington
98 Renewable Energy Credit Revenue Mechanism - Washington
| The following Margin Codes may be contained within the Tariff: | |
|---|---|
| (D) | Discontinued rate, service, regulation, or condition |
| (N) | New rate, service, regulation, condition, or sheet |
| (I) | A rate increase |
| (R) | A rate reduction |
| (C) | Changed condition or regulation |
| (K) | That material has been transferred to another sheet in the tariff |
| (M) | That material has been transferred from another sheet in the tariff |
| (T) | A change in text for clarification |
| (O) | no change |
Rate recaps and history
Shortcuts
History
Washington State Climate Commitment Act
How to calculate your bill
Natural GasCurrent tariffs / rate schedules / prices
Cover Sheet
Index
Service Area
101 General Service - Firm – Washington
111 Large General Service - Firm - Washington
112 Large General Service - Firm - Washington
116 Transportation Large General Service
131 Interruptible Service - Washington (Off Peak)
132 Interruptible Service - Washington (Off Peak)
146 Transportation Service for Customer-owned Gas - Washington
148 High Volume Transportation Service - Washington
149 Backup and Supplemental Compressed Natural Gas Service - Washington
150 Purchase Gas Cost Adjustment - Washington
151 Gas Extension Policy - Washington
153 Temporary Service - Washington
154 Rural Gas Service Connections - Washington
155 Gas Rate Adjustment - Washington
158 Tax Adjustment Schedule - Washington
161 Participatory Funding – Washington
164 – Climate Commitment Act
166 Insurance Expense Balancing Account – Washington
170 Rules and Regulations - Washington
173 Residential Debt Relief Program
174 Temporary Federal Income Tax Rate Credit
175 Decoupling Mechanism - Washington
178 Residual Tax Customer Credit – Washington
180 Meter Reading and Billing Practice - Washington
181 Natural Gas Transportation Service Terms and Conditions – Washington
182 Contingency Plan for Firm Service Gas Curtailment - Washington
185 Services Quality Measures Program – Washington
189 Fixed-Income Senior & Disabled Residential Service Discount Rate – Washington
190 Natural Gas Efficiency Programs - Washington
191 Demand Side Management Rate Adjustment - Washington
192 Low Income Rate Assistance Rate Adjustment - Washington
195 Optional Renewable Natural Gas
| The following Margin Codes may be contained within the Tariff: | |
|---|---|
| (D) | Discontinued rate, service, regulation, or condition |
| (N) | New rate, service, regulation, condition, or sheet |
| (I) | A rate increase |
| (R) | A rate reduction |
| (C) | Changed condition or regulation |
| (K) | That material has been transferred to another sheet in the tariff |
| (M) | That material has been transferred from another sheet in the tariff |
| (T) | A change in text for clarification |
| (O) | no change |
Find information on Electric and Natural Gas tariffs, rate schedule, prices and rate history.
- Schedule 93 Energy Recovery Mechanism – Washington
- Schedule 61 Electric Participatory Funding Mechanism – Washington
- Schedule 98 Renewable Energy Credit Mechanism - Washington
- Schedule 75 Decoupling Mechanism – Washington
- Schedule 175 Natural Gas Decoupling Mechanism – Washington
- Schedule 191 Natural Gas Energy Efficiency Mechanism – Washington
Avista files four-year rate plan in Washington to support reliable service and maintain critical infrastructure
Proposal aims to deliver predictable costs while addressing grid upgrades, wildfire resiliency, and higher power supply expenses.
On Jan. 16, 2026, Avista filed a four-year general rate case with the Washington Utilities and Transportation Commission (WUTC or Commission). The Commission has up to eleven months to review the general rate case filings and issue a decision in late 2026.
Why is a rate increase needed?
This proposal is designed to keep energy service in our region safe and reliable now and into the future, reflecting our commitment to thoughtful, long-term planning for the communities we serve. It addresses rising costs associated with maintaining and modernizing the grid, complying with clean energy laws, covering the increased cost of purchased power, investing in hydropower infrastructure improvements, and protecting our communities from emerging risks like wildfires and catastrophic weather events.
"As a lifelong member of this community, I recognize that rising energy costs are difficult for our customers," said Heather Rosentrater, Avista President and CEO. “While this rate request reflects what’s needed to maintain safe, reliable service, we’re committed to helping customers manage their bills through payment assistance programs and energy-saving tools, while continuing to control costs and investing in technology to improve efficiencies.”
“This proposal helps us make the investments needed for reliability and critical infrastructure, while giving our customers more predictability over the next four years,” continued Rosentrater.
What is driving increased energy costs?
Our request is driven by the need to recover increased operating and maintenance costs and to fund critical investments that impact energy costs, including:
- Power generation and supply – Rising costs to produce and purchase electricity that meets regional clean energy requirements
- Infrastructure upgrades – Modernizing and securing the electric grid, expanding substation capacity, updating century-old hydroelectric facilities, and replacing aging natural gas pipe to continue to serve safe and reliable energy across our region
- Wildfire safety and prevention – Vegetation management, grid hardening, and advanced wildfire risk monitoring to improve resiliency throughout our service territory
- Technology improvements – Improving the reliability and efficiency of systems that serve our customers
- Regional growth and reliability – Planning ahead to meet the changing energy needs of our growing region
- Clean energy compliance – Meeting state and regional energy requirements, such as the Climate Commitment Act (CCA) and the Clean Energy Transformation Act (CETA)
How much would customer bills be affected?
New electric and natural gas rates are proposed to start January 1 of 2027, 2028, 2029, and 2030. The proposed first year increase is larger because it includes costs from past investments and updated power supply costs that are not in current rates. It’s important for customers to know the exact impact of any increase depends on their rate schedule and how much energy they use.
The proposed increase by service schedule is as follows:
Proposed Annual Percentage Increases by Service Type
| Service Type | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|
| Electric-Most Schedules (Residential, General Service, Large General Service, Pumping Service, Street/Area Lights) | 13.9% | 4.7% | 3.5% | 2.8% |
| Electric-Large General Service (Special Contract) | 13.6% | 4.6% | 3.4% | 2.8% |
| Natural Gas-General Service (101) | 5.0% | 2.5% | 2.2% | 1.1% |
| Natural Gas-Large General (111, 112, 116) | 4.0% | 2.0% | 1.8% | 0.9% |
| Natural Gas-Interruptible (131, 132) | 3.3% | 1.7% | 1.5% | 0.8% |
| Natural Gas-Transportation (146) | 5.5% | 2.7% | 2.4% | 1.2% |
If approved, the average Washington residential electric customer using 925 kWh per month would see an increase from $124.23 today to $157.94 in 2030, with an initial $17.21 increase in 2027 and smaller amounts each year after.
The average Washington residential natural gas customer using 61 therms per month would see an increase from $91.06 today to $100.46 in 2030, with an initial $4.14 increase in 2027 and smaller amounts each year after.
What options do customers who need help with their bills have?
We understand household costs are increasing, and energy is one part of that. We offer tools and programs to help customers manage their energy costs and stay on track, including:
- Bill Discounts: My Energy Discount offers customers who qualify a personalized monthly bill discount. It’s easy to enroll, has flexible requirements, and lasts for two years. Nearly one in three Washington customers are eligible.
- Flexible Billing: Options like Comfort Level Billing, preferred due date, and payment arrangements help spread billed costs out to give customers more control.
- Energy-Saving Tools: Online energy insight tools allow customers to track their energy use and make adjustments to reduce. Do-it-yourself tips and videos, money-saving rebates, and a free home energy audit help lower energy use and costs.
- Community Support: Partnerships with local agencies provide emergency grants, home weatherization upgrades, and heating system improvements for those who qualify.
- Extra Help: Our CARES team connects customers with resources for housing, medical assistance, and other needs during tough times.
Customers can learn more about their options at myavista.com/assistance or by calling 1-800-227-9187.