LNG Peak Shaving
Peak shaving means storing LNG and vaporizing it during short periods of very high demand, such as cold snaps or heat waves, instead of paying for pipeline capacity that sits idle most of the year. The U.S. Energy Information Administration describes peak shaving as regasifying stored LNG when demand is high or pipeline delivery capacity is constrained.
Who uses peak shaving
Gas utilities have run peak shaving plants for decades to serve winter heating peaks. The same idea now serves power plants during demand spikes, industrial facilities whose pipeline contracts are interrupted on peak days, and campuses that face steep demand charges. Trucked LNG makes peak shaving available to sites too small to justify building their own liquefaction plant.
Two ways to do it
The traditional model liquefies pipeline gas onsite during low demand months and stores it. The virtual pipeline model skips the liquefaction plant entirely: LNG is trucked in and stored ahead of the peak season, or delivered on demand during peak events. Trucked supply has far lower capital cost and can be contracted for a single winter.
The economics
Peak shaving pays off when the alternative is expensive: firm pipeline capacity charges, interruptible service penalties, spot gas at peak prices, or lost production during curtailment. A stored LNG buffer converts those exposures into a known seasonal cost.
Who provides this service
VP Ventures provides trucked LNG peak shaving programs for utilities and industrial facilities, including seasonal storage ahead of peak periods and on demand delivery during peak events. The service is turnkey: LNG supply, transportation, onsite storage, regasification, and ongoing logistics coordination under one contract, with no infrastructure investment required at the point of use.
Why the peak is the whole problem
A gas system has to be built for the worst day of the year and then paid for on all the others. The shape of American gas demand shows how lopsided that is.
Residential gas use runs above 30 billion cubic feet a day in winter and falls to about 3 billion in summer. Commercial use swings from 16 billion to 4 billion. Industrial demand is the steadiest of the three, moving only from 22 billion down to 18 billion, which is why an industrial site usually sits behind a system sized for somebody else's peak rather than its own.
Power generation peaks on the opposite calendar, running near 30 billion cubic feet a day in summer against about 16 billion in the shoulder months.
The practical consequence for a buyer is that firm pipeline capacity is priced to cover a peak you may use on a handful of days. Peak shaving exists to avoid contracting for capacity that sits idle for the rest of the year.
Figures from the US Energy Information Administration, monthly averages across the residential, commercial, industrial and power sectors.
How to size a peak shaving reserve
Three numbers decide it, and they are all ones a site already has.
Peak day demand in MMBtu. Not average demand. The highest single day in the last five years of billing records, which is usually the coldest day or the day a process ran flat out.
The shortfall. Peak day demand minus whatever firm pipeline capacity already covers. That difference is what the reserve exists to deliver.
Duration. How many consecutive days the peak has historically lasted. A single cold snap is different from a two week freeze, and the reserve is sized for the longest run on record rather than the average.
Multiply the shortfall by the duration and add a delivery margin, because the reserve has to hold while the next trailer is on the road. That margin is the number worth arguing about, since it depends on how far the site sits from supply and how reliable that route is in bad weather, which is precisely when it will be tested.
Frequently asked questions
What does peak shaving mean in natural gas?
Storing gas as LNG and vaporizing it during short demand peaks, so a facility or utility avoids buying pipeline capacity or peak priced gas it rarely needs.
Do we need our own liquefaction plant?
No. Trucked LNG fills onsite storage without any liquefaction equipment at your site.
How much storage does a peak shaving program need?
Enough to cover your worst expected peak event, typically sized from historical demand data plus a safety margin. Storage is modular and leased.
Can peak shaving work for electricity demand charges too?
Yes. Stored LNG can fuel onsite generation during grid peaks, reducing demand charges or earning demand response revenue.
How big does a peak shaving reserve need to be?
Take your highest demand day from the last five years of billing records, subtract the firm pipeline capacity you already hold, and multiply the shortfall by the longest run of consecutive peak days on record. Then add a margin for delivery, sized to the distance from supply and the reliability of that route in winter.
Why is peak shaving cheaper than contracting more firm capacity?
Because firm capacity is paid for all year and used on a handful of days. Residential gas demand alone swings from over 30 billion cubic feet a day in winter to around 3 billion in summer, and the system has to be sized for the top of that range.
Does peak shaving help an industrial site, or only a utility?
Both, but for different reasons. A utility is managing its own seasonal peak. An industrial site is usually behind a system sized for the residential peak, so its constraint arrives on the coldest day even though its own demand barely moved.