We're doing more to protect against wildfires
A wise investment in preparedness
Avista is committed to keeping people and property safe. So, we are expanding our current safeguards for preventing, mitigating and reducing the impact of wildfires with a new enhanced 10-year Wildfire Resiliency Plan.
Guarding against growing risks
The risk of wildfires is increasing in our region. Above-normal fire seasons have repeated since 2000. Residential development is also quickly expanding into forested areas and other higher fire-risk locations. Avista’s enhanced Wildfire Resiliency Plan will further minimize the possibilities of wildfires and their related service disruptions.
An overview of the plan
The plan was developed through a series of internal workshops and industry research along with collaboration with state and local fire and land management agencies. It focuses on:
Replace and/or strengthen electric infrastructure, especially in fire-prone areas, to protect it from possible damage and reduce the likelihood of spark-ignition sources.
- Install a special fire-retardant wire mesh around the bottom of 1000 wood transmission poles beginning in 2020. Chemically reactive to heat, this mesh protects against ground fires, strengthens the pole and does not require continual maintenance like the fire-resistant paint historically used.
- Require all new line construction to incorporate steel poles, as steel is more resistant to fire, severe weather (such as high winds) and damage caused by humans and animals.
- Accelerate our replacement of aging-wood poles with new steel poles. (Avista has been working to replace poles along 2,270 miles of transmission lines since 2006.)
- Replace wooden crossarms on poles with fiberglass crossarms in high-risk fire areas.
- Phase out polymer insulators on transmission lines in favor of strengthened, noncombustible glass insulators.
- Enhance transmission line inspections, including with aerial surveys, by considering additional risk factors such as nearby wood debris, adjacent logging and construction activities, and other possible hazards.
Elevate our already robust management of fire-prone areas, especially near densely population locations, to further reduce the possibility of contact between vegetation and power lines.
- Complete more frequent analyses of the entire system (annually) to identify vegetation encroachment more quickly. Trees are the number one source of utility-related fire ignitions.
- Accelerate the removal of dead and dying trees. On average, 2,600 risk trees are removed each year from Avista’s transmission system and 15,500 from its distribution system.
- Continue routine tree-trimming near power lines with added coordination from public and private landowners.
- Maintain regular field and ground inspections on foot.
- Introduce aerial surveys using LIDAR (light detection and ranging) to digitally identify tree/vegetation encroachments on power lines, detect thermal hot spots and complete real-time inspections of trees and infrastructure.
- Increase the use of herbicides in fire-prone areas to prevent growth of problem vegetation.
- Identify opportunities and work with key stakeholders to expand the areas around power lines that Avista is responsible for maintaining. Expanding right-of-ways will allow us to manage problem vegetation more effectively.
Improve operational decisions by increasing our ability to assess potential fire risks.
- Leverage existing systems that monitor, communicate with, and remotely control the power grid to help us prevent and/or more quickly respond to wildfires. These systems include Transmission SCADA (supervisory control and data acquisition), Distribution DMS (distribution management system), and AMI (automated meter infrastructure).
- Develop new dashboard technology to enhance fire-risk assessment through weather forecasting. This information is vital to adapting operations and coordinating with local fire protection agencies in times of extreme weather events that could cause a wildfire.
- Use our Wildland Urban Interface (WUI) to map and prioritize areas where high human population and development is near forested areas and exposed to fire risk.
- Coordinate more closely with fire protection agencies during extreme weather events.
Operations and emergency response
Decrease the potential for wildfires by instigating operational changes when re-energizing power lines in rural and or forested areas.
- Begin physically patrolling outage areas during certain hot, dry and windy conditions to mitigate the risk of sparks before re-energizing a line. This requires more time to restore service, especially if there has been a fire, as fire officials decide when our crews can enter a fire zone to begin work.
- Continue to automatically re-energize a line following a fault, or tripped utility breaker, but only when conditions are normal. (The grid immediately tests a faulted circuit before re-energizing it.)
- Incorporate advanced training and event simulation to better prepare Avista personnel to work with fire professionals during a wildfire event.
Worker and public safety
Increase overall safety by creating cohesive partnerships with emergency first responders and fire agencies to share wildfire responsibilities.
- Prioritize employee and public safety over customer restoration.
- Provide Avista’s 550 electric line workers (already trained as emergency responders) with monthly, basic fire training taught by a fire agency professional prior to the fire season (April-May).
- Embed Avista field personnel into the Fire Service Incident Command System (controls and coordinates emergency response from multiple agencies) to act as a liaison between Avista and the ICS fire commander.
- Launch an Expedited Response pilot program in partnership with Spokane County Fire Districts in which Avista will initiate a 911 call whenever an isolated transmission fault occurs during fire season. This will help fire fighters more quickly investigate and extinguish a possible fire before it can spread.
- Use performance metrics to adjust and align planned future actions.
- Regularly engage with other regional utilities, task forces and utility commissions to leverage and exchange best practices.
Your part in preventing wildfires
Make your property and neighborhood safer with a few simple changes to your home and landscape.
- Avoid planting trees and shrubs where they may eventually come in contact with power lines and other electric equipment. Learn how to plant the right tree in the right place.
- Prune shrubs and tree branches that are closer than five feet from your house and outbuildings. If your tree is near our primary power lines, contact Avista for options.
- Cut tree limbs so that the lowest branches are at least six feet above the ground.
- Remove pine needles, dry leaves and other flammable yard waste from your property, especially within five feet of your house. Clear roofs and gutters, too.
- Avoid backyard burning in windy conditions. Keep a shovel, water and fire retardant nearby.
- Rake tree bark and other landscaping mulch at least five feet away from all structures.
- Keep your lawn watered. Brown lawns should be cut short to reduce fire intensity.
- Keep woodpiles, lumber, vehicles, boats and other large fuel sources at least 30 feet away from your house.
- Cover vents and other openings with 1/8-inch wire mesh to help prevent wind-borne embers from getting into your home.
- Screen below porches and low decks to keep dry leaves and other debris from accumulating underneath.
- Replace missing roof tiles and shingles. Use clay bird stops or cement on the ends of roof tile to help prevent embers from getting underneath during a fire.
- Put together a family emergency plan and a kit of emergency supplies for potential power outages, fire evacuation and other unforeseen events.
If you are forced to leave
- Shut off natural gas, propane and fuel oil supplies.
- Remove combustibles from your yard, including firewood, barbecue-grill tanks and fuel cans.
- Store items that could ignite such as furniture cushions, mats, potted plants and decoration from decks, porches and patio.
- Close all windows, vents and doors (including pet doors) to prevent drafts and keep embers from getting inside.
- Fill pools, hot tubs and other vessels with water to help prevent or slow a fire.
- Visit www.firewise.org for more information.