Over the previous 4 years, comparatively little new underground pure fuel storage capability was constructed within the Decrease 48 states. EIA measures pure fuel storage capability in two methods: design capability and demonstrated most working fuel quantity (or demonstrated peak). In 2017, design capability grew by about 1%, and demonstrated peak fell by 1%.
Design capability is the sum of the working fuel capability for all lively amenities within the Decrease 48 states as of November 2017. Design capability relies on the bodily traits of the reservoir, put in tools, and working procedures explicit to the location. Nationally, design capability rose by 34 billion cubic ft (Bcf), or zero.7%, between November 2016 and November 2017. This enhance was pushed by enlargement within the East storage area, the place design capability grew by 30 Bcf (2.9%) in 2017.
A lot of the incremental capability in 2017 got here from expansions to current amenities, and expansions had been closely concentrated within the East area, the place pure fuel manufacturing has grown virtually regularly since 2009. A number of amenities in Ohio and West Virginia probably expanded in 2017 to accommodate rising ranges of pure fuel manufacturing within the Appalachian Basin.
Demonstrated peak is the sum of the best storage ranges reached by every storage facility over the newest five-year interval, with the newest interval overlaying December 2012 to November 2017 (the start of every yearly heating season). Demonstrated peak signifies how storage amenities had been truly used, not simply how they had been designed.
The demonstrated peak fell by 46 billion cubic ft (Bcf), or 1.zero%, in 2017. EIA started monitoring peak capability metrics in 2011, and 2017 marks the primary 12 months that the demonstrated peak declined. The decline was partly as a result of the brand new five-year vary doesn’t embrace 2012, a 12 months that noticed very excessive stock ranges due to file heat climate.
Storage capability in a given state could also be a perform of a number of issues, together with manufacturing, consumption, current infrastructure, geography, and geology. States with excessive ranges of pure fuel manufacturing, reminiscent of Texas and Louisiana, additionally are likely to have substantial volumes of underground storage capability. These states have well-developed pure fuel infrastructure, many massive industrial and electrical sector customers, and geology that’s amenable to storage.
Michigan has the best quantity of pure fuel storage design capability within the nation, nevertheless it has modest ranges of pure fuel manufacturing in contrast with Texas and Louisiana. Nonetheless, Michigan depends closely on pure fuel for winter heating wants and has a number of components which have led to investments in storage: a number of main pipelines that hook up with Canada and different Midwestern states, close by inhabitants facilities reminiscent of Chicago, and depleted manufacturing fields that it was capable of convert into storage fields.
Principal contributor: Mike Kopalek