Smart Energy Insights
Energy Insights
Thomas McGlynn • 22 June 2026

Weekly Energy Market Report: 15-19th June 2026

Weekly Market Report Week of 15 Jun – 19 Jun 2026

Peace deal eases gas, but talks delay brings caution back

Gas dropped 19.3% this week to 96.69p/therm and power fell 11.6% to £91.46/MWh, both down sharply over 30 days as US-Iran tensions eased and forecasts showed warmer weather and stronger wind. Friday's postponed peace talks reintroduced some geopolitical risk, pushing both up slightly by day's end.

Gas ↓ Easing · -19.3% this week Power ↓ Easing · -11.6% this week
Gas front-month
96.69p
-19.3% this week
Power front-month
£91.46
-11.6% this week
This week's signal

Should you act this week?

Worth watching

Gas and power both fell sharply (gas -23.3% over 30 days, power -12.2%) as geopolitical risk eased and warm weather cut demand, but Friday's postponed US-Iran talks reintroduced uncertainty—wait to see if the peace deal holds before committing to a new contract.

Weekly review

What happened this week

The week started with a bang: on Monday, news that the US would not escalate in the Middle East triggered a sharp unwind of the geopolitical risk premium baked into gas prices. By Wednesday, a formal US-Iran peace framework agreement—with plans to reopen the Strait of Hormuz within 30 days—sent gas tumbling further. Traders stripped away hedges aggressively, and the front month fell from 119.79p on Friday 13 June to 97.13p by Wednesday. Power followed suit, losing 11.6% on the week as lower gas costs reduced generation expenses. Then Friday threw a spanner in the works: planned peace talks were postponed after renewed military exchanges between Israel and Hezbollah, reintroducing geopolitical anxiety and pushing both gas and power back up slightly.

The primary driver was geopolitical de-risking. For weeks, Middle East tensions had inflated a risk premium into the curve; once a credible peace deal emerged, traders had no reason to hold that hedge. Warm weather and strong wind forecasts added fuel to the fire—heating demand fell as temperatures rose, and renewable generation displaced gas-fired power from the stack. European storage forecasts of 75% by summer's end also bolstered confidence in winter supply security. On the power side, carbon prices near €80/t and concerns about French nuclear outages (warm river water reducing cooling capacity) provided some countervailing support, but not enough to offset the broader bearish mood.

Over 30 days, gas is down 23.3% and power down 12.2%—a genuine easing after weeks of elevated prices. The forward curve tells the story: near-term contracts (Jul–Q1-27) are all down 16–19%, but further out (Cal-27, Cal-28, Cal-29) the declines flatten to just 0.8–2.4%, suggesting the market expects prices to stabilise once summer demand fades and winter approaches. For anyone renewing soon, this is a favourable window; for those with 12+ months to run, the sharp near-term drop is informational but not a strong signal to act immediately, since most of the move reflects temporary relief rather than a structural shift in winter supply.

US-Iran peace framework

Agreement to end conflict and reopen Strait of Hormuz within 30 days removed a major risk premium from prices mid-week, but Friday's postponed talks brought some back.

Warm weather and wind forecasts

Rising temperatures cut heating demand and stronger wind generation reduced reliance on gas-fired power, pushing both gas and power down throughout the week.

European storage confidence

Forecasts for 75% gas storage by end of summer eased winter supply concerns and supported the downward move.

French nuclear constraints

Warm river temperatures threaten to reduce French nuclear output, providing some support to power prices further out the curve.

Carbon prices holding firm

EU allowances near €80/t provided modest support to power contracts despite broader bearish sentiment from gas and geopolitics.

The market in numbers

Wholesale prices

Wholesale rates at week-end close — your business rate sits above these. Settlement: 18 Jun 2026.

rising falling week / 30d vs prior
Gas 96.69p front
Contract p/therm Week 30d
Jul-26 96.69 -19.3 -23.3
Aug-26 97.07 -19.4 -23.0
Sep-26 98.99 -18.6
Q3-26 97.57 -19.1
Q4-26 103.49 -17.6
Q1-27 102.72 -16.5
Win-26 103.11 -17.0 -18.2
Sum-27 79.64 -8.6 -9.6
Win-27 81.98 -6.0 -7.0
Sum-28 63.54 -2.1 -1.6
Cal-27 85.73 -10.7 -11.5
Cal-28 70.09 -2.8 -2.4
Cal-29 63.54 -1.6 -0.8
Power £91.46 front
Contract £/MWh Week 30d
Jul-26 91.46 -11.6 -12.2
Aug-26 88.80 -11.3 -12.8
Sep-26 92.06 -11.2
Q3-26 90.76 -11.3
Q4-26 96.19 -10.8
Q1-27 94.64 -9.8
Win-26 95.42 -10.3 -9.0
Sum-27 76.31 -3.2 -0.3
Win-27 79.11 -1.2 +0.0
Cal-27 81.03 -4.7 -3.6
Cal-28 68.48 +0.1 +3.3
Cal-29 66.03 +0.7 +3.5
20 May – 19 Jun trend

How the week moved

Gas (p/therm) Power (£/MWh)
When should I renew?

What to do about your contract

Renewing in next 6 months
Gas and power have both fallen sharply over 30 days (gas -23.3%, power -12.2%), but Friday's geopolitical uncertainty has introduced chop. Wait another week or two to see if the US-Iran peace deal holds; if it does and talks resume, you'll be in a strong position to lock in near these lows. If tensions flare again, prices could spike.
Worth watching
Renewing 12-18 months out
The forward curve (Cal-27: gas 85.73p, power £81.03/MWh) shows the market expects modest easing from here, but you have time. The 30-day drop is partly noise—geopolitical relief and temporary weather effects. Watch how the peace deal progresses and whether European storage builds as forecast; if winter supply looks genuinely tight, prices may hold or drift up.
Worth watching
Renewing 2+ years out
Cal-28 and Cal-29 have barely moved (gas down just 0.8–2.4% over 30 days), reflecting the market's view that long-term supply and demand are balanced. This week's geopolitical and weather moves are noise at this horizon. No urgent reason to act; revisit in 6–12 months if structural changes emerge.
Wait — easing
For energy buyers — forward curve shape & look-ahead

Forward curve shape: The curve is gently downward-sloping through winter 2026–27 (Q4-26 at 103.49p gas, Q1-27 at 102.72p) before dropping sharply into summer 2027 (79.64p), suggesting the market expects winter demand to ease and storage to build comfortably. Beyond 2027, prices flatten around 63–71p, implying confidence in long-term supply adequacy.

Look ahead: Watch for confirmation that the US-Iran peace talks resume and hold—if they collapse, expect a sharp repricing upward. Monitor European weather and river temperatures closely; if French nuclear outages persist or expand, power could find more support. Finally, keep an eye on LNG flows from the Middle East once the Strait of Hormuz reopens; a genuine increase in global supply would reinforce the downward trend.

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Settlement: 18 Jun 2026 · Period: 15 Jun – 19 Jun 2026 · Source: ICE Endex / SEFE
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