Columbia Water & Light has been pursuing renewable energy sources since the mandate was passed by voter approval in 2004. In 2014, Columbia had 7.22% of the electric portfolio generated from renewable sources which exceeds the requirement for 2014 of 5%. The additional cost is 34.2% of what is allowed by the renewable energy ordinance.
|Source||% of Supply||Cost/MWH||Type|
|Bluegrass Ridge wind||1.16%||$67.81||intermittent|
|Crystal Lake wind||2.11%||$55.74||intermittent|
|Jefferson City landfill gas||1.84%||$53.04||base load|
|Columbia landfill gas||1.53%||$49.02||base load|
|Columbia Power Plant biomass||0.52%||$36.36*||system support|
|Free Power solar||0.04%||$54.93||intermittent|
|Solar One||0.00% (42 MWH)||**||intermittent|
*wood fuel cost only
**Solar One energy is paid for by customer subscriptions
As outlined in the renewable energy ordinance, renewable energy cannot cause electric rates to increase more than 3% above what rates would be with non-renewable energy.
For calendar year 2014, the additional cost to address the renewable portfolio requirement was $1,122,426 and the limit was $3,288,378. The extra money spent on renewable energy was 34.2% of what was allowed according to the ordinance.
The city shall generate or purchase electricity generated from eligible renewable energy sources at the following levels:
The cost of the renewable energy mandated in the ordinance must not increase electric rates more than 3% higher than the electric rates attributed to the cost of electricity generated from 100% non-renewable sources. See the City of Columbia Code of Ordinances for the full text of the mandate.
NOTE: The renewable energy ordinance was revised by the Columbia City Council on January 6, 2014. The percentage of required renewable energy increased from 10% to 15% by 2018, from 15% to 25% by 2023 and set a new goal of 30% by 2029.
For more details, download our annual Renewable Energy Report