Lewis, Washington · Plant code 3917

Mayfield

Mayfield is a hydro plant in Lewis, Washington. This page is assembled from imported EIA-860, EIA-923, and EPA eGRID records.

Primary fuel Hydro

Route-friendly label and badge.

Total capacity 164 MW

Plant nameplate capacity.

Annual generation 576,354 MWh

Annual output from imported EIA and EPA records.

Capacity factor 38%

A simple way to compare utilization.

Operations

Operations details

Sector Electric Utility

Utility, IPP, industrial, or commercial style ownership.

Status Operating

Current operating status in the imported records.

Online year 1,963

Useful for technology-vintage context.

Location Silver Creek, Washington

County and state routing anchor.

Emissions

Emissions details

CO2 0 tons

Annual plant-level total.

SO2 0 tons

Annual sulfur dioxide.

NOx 0 tons

Annual nitrogen oxides.

CO2 rate 0 lbs/MWh

Emission intensity, when available.

Fuel mix

Generation by fuel at the site.

Hydro 576,354 MWh · 100% of generation

Ownership

Who owns the plant.

Owner City of Tacoma - (WA)

100%

Generators

Generator-level detail

Generator	Technology	Fuel	Capacity	Status	Online
41	Conventional Hydroelectric	Hydro	41 MW	Operating	1,983
42	Conventional Hydroelectric	Hydro	41 MW	Operating	1,963
43	Conventional Hydroelectric	Hydro	41 MW	Operating	1,963
44	Conventional Hydroelectric	Hydro	41 MW	Operating	1,963

Generation trend

Monthly output pattern

81,130 MWh

Jan

61,157 MWh

Feb

52,491 MWh

Mar

50,706 MWh

Apr

51,709 MWh

May

63,637 MWh

Jun

28,012 MWh

Jul

31,993 MWh

Aug

29,744 MWh

Sep

33,374 MWh

Oct

35,551 MWh

Nov

56,850 MWh

Dec

Nearby plants

Closest comparison sites

Lewis, Washington

Mossyrock

Hydro

Mossyrock is a hydro plant in Lewis, Washington. This page is assembled from imported EIA-860, EIA-923, and EPA eGRID records.

300 MW 811,561 MWh 0 tons CO2

City of Tacoma - (WA) 8.1 mi away

Lewis, Washington

Chehalis Generating Facility

Natural Gas

Chehalis Generating Facility is a natural gas plant in Lewis, Washington. This page is assembled from imported EIA-860, EIA-923, and EPA eGRID records.

594 MW 2,651,878 MWh 1,006,801 tons CO2

PacifiCorp 17.5 mi away

Thurston, Washington