Missouri Rate Riders and Adjustments

Find detailed tariffs for Missouri/Riders here or view Demand Side Investment Mechanism Rider (DSIM) or Fuel Adjustment Clause (FAC) for Missouri in the charts below. You can view GMO rate riders and adjustments separately. 

  • FAC – This covers fuel costs over or under what’s estimated and included in base rates. If actual fuel costs are higher, the FAC increases. If actual fuel costs are lower, the FAC decreases. As a result, customers pay for only the actual costs of fuel used to serve them. This charge is applied on a per kilowatt-hour basis. The Missouri Public Service Commission evaluates and approves these costs each quarter.
  • DSIM – This covers the cost of energy-efficiency programs established as a result of the Missouri Energy Efficiency Investment Act (MEEIA). Energy efficiency helps keep rates affordable over time by reducing the amount of electricity needed to serve our community and delaying the need to build new power plants. This charge applies on a per-kilowatt-hour basis. The Missouri Public Service Commission evaluates and approves these costs periodically.

Demand Side Investment Mechanism Rider (DSIM)

Effective Date

Residential Price
per Kilowatt Hour

Commercial and Industrial
Price per Kilowatt Hour

August 1, 2018 $0.0042400  $0.0031300 
February 1, 2018 $0.0066500  $0.0059200 
August 1, 2017 $0.0054300 $0.0050200
February 1, 2017 $0.0039100  $0.0043300 
August 1, 2016 $0.0033200  $0.0101000 
April 1, 2016 $0.0033500  $0.0055000
February 1, 2016 $0.0002200  $0.0035800 
August 1, 2015 $0.0013200  $0.0045000 
February 1, 2015 $0.0035200  $0.0024700 
August 6, 2014 $0.0039800  $0.0021500 

Fuel Adjustment Clause (FAC)

Effective Date Residential
Price per Kilowatt Hour

Commercial-Industrial Secondary
Price per Kilowatt Hour

Commercial-Industrial Primary
Price per Kilowatt Hour
 April 1, 2018 $0.0049500  $0.0049500  $0.0048400 
October 1, 2017 $0.0068200  $0.0068200  $0.0066500 
April 1, 2017 $0.0065500  $0.0065500  $0.0063900 
October 1, 2016 $0.0029900  $0.0029900  $0.0029200 
April 1, 2016 $0.0008000  $0.0008000  $0.0007800 
Effective Date Commercial-Industrial Substation
Price per Kilowatt Hour
Commercial-Industrial Transmission
Price per Kilowatt Hour
Lighting Service
April 1, 2018 $0.0047200  $0.0047200  $0.0049500 
October 1, 2017 $0.0065900  $0.0065900   $0.0068200
April 1, 2017 $0.0063900  $0.0063900  $0.0065500 
October 1, 2016 $0.0029200  $0.0029200  $0.0029900 
April 1, 2016 $0.0007800  $0.0007800  $0.0008000