As of the 4th of May, Gas and Electricity Year Ahead Wholesale costs were lower than last month. Oil was also lower at $114 from $118. In April the UAE announced they are leaving OPEC, to avoid restrictions on their Oil production.
Today, Gas prices are moving higher as both the US and Iran have carried out strikes. The US against Iranian military boats, and Iran against their neighbours and shipping.
Over the last month energy costs eased due to the ceasefire and hopes that negotiations could end the conflict, but there appears to be significant areas of disagreement. The US seems hesitant to carry out threats of more attacks against Iran’s energy and wider infrastructure, due to the impact on civilians and energy prices. This has created a stalemate where the Strait of Hormuz is still effectively closed, despite US attempts to escort ships and blockading Iran’s ports. This means continued disruption to about 20% of global Oil and LNG. Markets prices are increasing again as buyers of energy from the Middle East look to secure deliveries from other sources.
The effect on customer’s contract renewals is currently significant when compared to more recent prices, although they are still far lower than we saw in 2022 and 2023. The eventual scale of these increases and over what period is very much an unknown, but we will continue to be available to discuss options and provide guidance.
The energy industry has changed how it recovers Electricity Distribution, Transmission and Balancing costs, under the Targeted Charging Review. This has moved some charges away from being based on the energy used and billed in the unit rate, to fixed charges incorporated within the Standing Charge or as separate items. This should give both the customer and the industry a more accurate way of calculating budgets, but the change has become noticeable within energy bills and created concern.
From April 2026 customers will have seen a large increase in Transmission costs with an expectation of further annual increases at least for the next five years. Distribution costs are a little more complicated, made up of Time of Use, Available Capacity and Fixed charges. Some of these charges are now based on a meter’s Band, which is related to a Half Hourly meter’s kVA Capacity. This means that by managing demand and reviewing the Capacity, there is an opportunity to reduce costs. Indigo Swan can provide you with guidance through this process.
The cost to Balance the network is increasing as is the Energy Intensive Industries (EII) charge, which provides relief from various industry costs for EII customers. This moves from 60% to 90% for the Network costs from April 2026.
Indigo Swan works closely with energy suppliers to help all our customers understand and manage changes.
Please contact us on 0333 320 0475 to discuss options or to get a latest update.
On the 4th of May, the Gas Year Ahead Wholesale cost was 110.15p/th, down from 126.58p/th in last month’s report and 24% higher than 2025. Today, the 5th of May, is seeing prices move higher as attacks by the US and Iran have resumed.
The extension of the ceasefire and negotiations meant that costs fell for much of April, with the realisation that military strikes were unlikely to end the war but continue to push energy prices higher. Even when the conflict does end, there will still be supply issues due to the damage sustained to Oil and LNG facilities.
The EU’s Gas Storage is just 34% full compared to 41% in 2025 and 63% in 2024. As LNG supplies from the Middle East have been impacted, which typically head to Asia, demand has increased from other sources. This could mean that the EU struggles to replace Gas for use in winter 2026/2027 due to high demand and costs, with the added concern that they have already banned some Russian LNG deliveries, with a complete ban due from January 2027. This will likely create a price pressure through the summer, hoping that there are no supply issues from our main Gas suppliers, Norway and the US.
We would encourage any customer with a contract that ends in the next few months, to discuss your renewals with us and we will look to provide additional market intelligence, guidance and support as required.

On the 4th of May, the Electricity Year Ahead Wholesale cost was £93.12/MWh, down from £99.24/MWh in last month’s report and 16% higher than 2025. Today, the 5th of May, is seeing prices move higher as attacks by the US and Iran have resumed.
With the UK’s Electricity Wholesale prices tracking the direction of Gas, due to its high cost and use for generation, the conflict in the Middle East continues be a significant influence. Global Gas costs are increasing once again as the Strait of Hormuz is effectively closed due to fear of attacks by Iran, despite the US attempt to escort ships. The low EU Gas Storage levels and concern for supplies through winter 2026/2027 are impacting on Electricity prices.
In April the UK government announced plans to pressure some generation that benefits from the high market prices, onto other schemes or agreements, in order to lower costs for consumers. In April, Wind accounted for 26% of supplies and Gas 17%, down from 24% in March. The Interconnectors with mainland Europe, which allow both Imports and Exports, provided 16%.
We would encourage any customer with a contract that ends in the next few months, to discuss your renewals with us and we will look to provide additional market intelligence, guidance and support as required.

If you enjoyed reading this blog why not try one of our others:
"Indigo Swan were professional but with a personable approach. Their market knowledge allowed me to enter new contracts with confidence, this was something I was unable to do with my previous broker."
Joanna Thornton, Estate Manager
"The experience behind the Indigo Swan team, their passion and integrity were all important to us. They clearly understood the market and could provide the best advice. "
Phil Riseborough, Head of Facilities
"We’ve worked with other energy consultants, but with Indigo Swan we get real integrity and service that is way beyond our expectations. We have already saved over £120k."
Jason Wakefield, Procurement Manager
| Cookie | Duration | Description |
|---|---|---|
| TawkConnectionTime | session | Tawk.to, a live chat functionality, sets this cookie. For improved service, this cookie helps remember users so that previous chats can be linked together. |
| Cookie | Duration | Description |
|---|---|---|
| SRM_B | 1 year 24 days | Used by Microsoft Advertising as a unique ID for visitors. |
| Cookie | Duration | Description |
|---|---|---|
| CONSENT | 2 years | YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data. |
| MR | 7 days | This cookie, set by Bing, is used to collect user information for analytics purposes. |
| _ga | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
| _gat_gtag_UA_12371872_1 | 1 minute | Set by Google to distinguish users. |
| _ga_* | 1 year 1 month 4 days | Google Analytics sets this cookie to store and count page views. |
| _gcl_au | 3 months | Provided by Google Tag Manager to experiment advertisement efficiency of websites using their services. |
| _gid | 1 day | Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. |
| Cookie | Duration | Description |
|---|---|---|
| ANONCHK | 10 minutes | The ANONCHK cookie, set by Bing, is used to store a user's session ID and also verify the clicks from ads on the Bing search engine. The cookie helps in reporting and personalization as well. |
| MUID | 1 year 24 days | Bing sets this cookie to recognize unique web browsers visiting Microsoft sites. This cookie is used for advertising, site analytics, and other operations. |
| test_cookie | 15 minutes | The test_cookie is set by doubleclick.net and is used to determine if the user's browser supports cookies. |
| VISITOR_INFO1_LIVE | 5 months 27 days | A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. |
| YSC | session | YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages. |
| yt-remote-connected-devices | never | YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. |
| yt-remote-device-id | never | YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. |
| yt.innertube::nextId | never | This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen. |
| yt.innertube::requests | never | This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen. |
| Cookie | Duration | Description |
|---|---|---|
| CLID | 1 year | No description |
| SM | session | No description available. |
| twk_idm_key | session | No description |
| _clck | 1 year | No description |
| _clsk | 1 day | No description |
