power burn

Government forecasts are predicting a sharp drop in natural gas demand in the power sector in the coming decades based on an expectation that the renewable capacity build-out will accelerate and displace other sources. However, forecasts in the past decade have consistently and severely underestimated gas burn for power. In today’s RBN blog, we consider the pitfalls of forecasting gas consumption in a world often focused on pushing a renewables-heavy generation stack.

Last summer, a tight coal market in the Eastern U.S. made an already tight natural gas market even tighter. Low coal stocks, dwindling production and transportation constraints led to exorbitant premiums for Appalachian coal and limited coal consumption in the East, leading to record gas demand for power generation — even as gas prices soared to 14-year highs. Now, gas markets are considerably looser, storage inventories are high, and gas prices are signaling the need for more demand (or lower supply) to balance the market and avoid storage constraints this injection season. But the coal market has eased as well. Coal production is up, coal stocks are too, and Appalachian coal prices have plunged in recent months. What will that mean for power burn and balancing the gas market this summer? In today’s RBN blog, we look at the latest developments in the coal and gas markets, the potential for coal-to-gas switching, and how those dynamics could impact gas balances.

Lower 48 natural gas production this month hit a once-unthinkable milestone, topping the all-important psychological threshold of 100 Bcf/d for the first time. Volumes have remained at record highs through mid-September, with year-on-year gains expanding to a breathtaking 7-9 Bcf/d above last year at this time (when hurricane-related shut-ins were in effect). The record production levels coincided with a seasonal decline in weather-related demand, as well as the ongoing outage at the Freeport LNG export terminal. Remarkably, however, even with all-time high, ~100 Bcf/d natural gas production and Freeport LNG offline, the Lower 48 gas market balance averaged tighter year-on-year — a testament to just how strong consumption has been lately, and for much of this summer for that matter. In today’s blog, we look at how the supply-demand balance has shaped up this month and where it’s headed near-term.

Natural gas futures prices have rocketed to 14-year highs in the past couple of months — during the lower-demand spring months, no less — and they are now trading at 3x where they were at this time last year. The CME/NYMEX Henry Hub futures for June delivery shot up to a high of $9.40/MMBtu in intraday trading last Thursday, the highest level we’ve seen since summer 2008, before expiring at $8.908/MMBtu, nearly $6 (~200%) higher than the June 2021 expiration settlement at just under $3/MMBtu. The newly prompt July futures retreated ~17 cents Friday to about $8.73/MMBtu, but that’s still nearly triple where July futures traded last year. It’s safe to say the low fuel cost of gas-fired power generation that defined the Shale Era has evaporated. Historically, at today’s sky-high prices, gas would have given up market share to coal in the power sector. However, the coal market is battling its own supply shortage and Eastern U.S. coal prices are at record highs. What does that mean for generation fuel costs and fuel switching? In today’s RBN blog, we break down the math for comparing gas vs. coal fuel costs.

A tight coal market and record-high coal prices in the Eastern U.S. have suppressed gas-to-coal switching in recent months, despite the gas market also contending with a supply squeeze and gas prices trading at Shale Era highs. The coal-market constraints have contributed to record, or near-record, gas demand in the power sector, with gas gaining market share of total generation fuel demand — in spite of wind and solar increasing their share of the pie. Generation fuel dynamics were a driving factor in the tighter gas market balances this past winter and also play a role in how power grids balance cost and reliability during times of extreme customer demand, such as the record-breaking heat wave expected to hit Texas in the coming days. In today’s RBN blog, we take a look at power generation fuel economics, particularly the fuel-switching phenomenon and its underlying drivers.

Despite the highest natural gas futures prices in over a decade, its use for power generation in the Lower 48 has set records in recent months. This is in part by design: economics and environmental regulation have broadly favored gas-fired plants and pushed into retirement hundreds of coal-fired plants in the last decade or so, reducing price-driven fuel-switching capabilities between the two fuels. However, there’s more to it than that: a tight coal market, marked by low stockpiles, high export demand and record high prices, is limiting gas-to-coal switching even further, making gas burn for power much more inelastic to price. In today’s RBN blog, we take a closer look at this key intersection of the gas and coal markets.

Canadian natural gas storage levels finished the most recent injection season at a record high. With what has been a fairly mild start to the heating season so far in North America, you might be tempted to think that Canadian storage levels would have been slow to draw down. On the contrary: so far, gas is being withdrawn from storage more quickly than might be expected from the winter weather alone, partly because of structural developments that have been emerging in the Canadian market. And these changes will help to draw storage levels down closer to historical averages by the end of the current heating season in March 2021. Today, we consider these structural changes and what the current heating season might have in store for the Canadian gas market.

You wouldn’t know it from the $2.50-plus/MMBtu Henry Hub prompt natural gas futures prices in the past couple of months, but the U.S. gas market this injection season just barely managed to avoid a complete meltdown. Despite gas production volumes trailing year-ago levels all summer long, it wasn’t until the last month or two of the traditional injection season (April through October) that the market tightened enough to escape a major storage crunch. In reality, it took the multi-pronged effects of production cutbacks — in part from hurricane-related disruptions — higher LNG and pipeline exports, and cooler fall weather, to make that happen. Today, we review the U.S. natural gas supply/demand balance and implications for 2021.

There’s no doubt about it: California’s decade-long efforts to expand the use of solar, wind, and other renewable energy and improve energy efficiency have enabled the state to significantly reduce its consumption of natural gas for power generation. But the Golden State’s rapid shift to a greener, lower-carbon electricity sector — and its push to shut down gas-fired power plants — has come at a cost, namely an increased risk of rolling blackouts, especially during extended heat waves in the West when neighboring states have less “surplus” electricity to send California’s way. The main problem is that while solar facilities provide a big share of the state’s midday power needs, there’s sometimes barely enough capacity from gas plants and other conventional generation sources to take up the slack when the sun sinks in the late afternoon and early evening. Today, we discuss recent developments on the power front in the most populous state, and what they mean for natural gas consumption there.

For a few years now, U.S. natural gas producers have benefited from the electric-power sector’s shift from coal-fired plants toward gas-fired ones. The ongoing transition makes sense. Not only is gas-fired generation cleaner, it’s mostly been cheaper than the coal alternative. Better still, gas turbines and combined-cycle plants are very flexible companions to all those new wind farms and utility-scale solar facilities, whose variable output requires at-the-ready replacement power when the wind’s not blowing and the sun’s not shining. But with the continued push by many state regulators — and many utilities — for lower-carbon generation fleets, gas-fired plants are facing a growing challenge from energy storage, mostly in the form of very big lithium-ion batteries. Today, we look into the increasing use of large-scale batteries in utility settings and whether they might pose a serious threat to gas-fired power in the 2020s and beyond.