Free UK Energy Widgets
A growing library of free, embeddable UK energy widgets. Add live price cap data, forecasts, supplier ratings and cost calculators to your own website in seconds — with PowerGuardian credited automatically as the data source.
Completely free
Free for UK websites, blogs, councils, housing associations, landlords and charities.
Who can embed
Bloggers, comparison sites, businesses, community groups — anyone with a website.
Always current
Widgets update automatically whenever PowerGuardian refreshes its data.
Trusted data
Ofgem-based price tracking, our forecasting model and Supplier Intelligence.
How to embed a widget
- 1
Pick a widget below and copy its iframe snippet with the Copy button.
- 2
Paste it into your page's HTML or a custom-embed block (WordPress, Squarespace, Wix, Ghost and more).
- 3
Publish. The widget stays up to date automatically — no maintenance needed.
Prices & Forecasts
Live preview
UK Energy Price Cap
Prices & ForecastsLive snapshot of the current Ofgem energy price cap with the month-on-month change and a 12-month sparkline.
- Current Ofgem price cap
- Current cap period
- Previous cap for comparison
- Percentage increase or decrease
- Last updated date
<iframe src="https://powerguardian.co.uk/embed/price-cap" width="360" height="200" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="UK Energy Price Cap by PowerGuardian"></iframe>6-Month UK Energy Forecast
£1,520 – £1,862/yr typical
Live preview
UK Energy Price Forecast
Prices & ForecastsForward-looking range for the UK energy price cap and best-deal estimate for the coming quarters, with a confidence label.
- Current forecast range
- Next-period forecast
- Trend indicator
- Aggregated confidence level
- Latest forecast update
<iframe src="https://powerguardian.co.uk/embed/forecast" width="360" height="280" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="UK Energy Price Forecast by PowerGuardian"></iframe>Suppliers & Tariffs
UK Standing Charges
Live preview
Standing Charge Tracker
Suppliers & TariffsCurrent typical electricity and gas standing charges with a link to our full explainer.
- Current electricity standing charge
- Current gas standing charge
- Typical daily combined cost
- Explanation link
<iframe src="https://powerguardian.co.uk/embed/standing-charge" width="360" height="210" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Standing Charge Tracker by PowerGuardian"></iframe>Cheapest Fixed Tariff
£1,680/yr est.
Utility Warehouse · Fixed
Estimated annual cost for a typical dual-fuel home. Your price depends on usage and region.
Live preview
Cheapest Fixed Tariff
Suppliers & TariffsThe lowest fixed tariff currently tracked by PowerGuardian, with supplier and estimated annual cost.
- Lowest available fixed tariff
- Supplier name
- Estimated annual cost
- Last checked date
<iframe src="https://powerguardian.co.uk/embed/cheapest-fixed" width="360" height="210" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Cheapest Fixed Tariff by PowerGuardian"></iframe>Top-Rated UK Suppliers
Octopus Energy
So Energy
EDF Energy
OVO Energy
Live preview
Supplier Ratings
Suppliers & TariffsThe top-rated UK energy suppliers by PowerGuardian Score, with service and stability breakdowns.
- Top-rated suppliers
- Overall PowerGuardian Score
- Customer service rating
- Stability rating
<iframe src="https://powerguardian.co.uk/embed/supplier-ratings" width="360" height="300" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Supplier Ratings by PowerGuardian"></iframe>Calculators
Electricity Cost Calculator
Daily
£2.00
Monthly
£60.75
Annual
£729.00
Live preview
Electricity Cost Calculator
CalculatorsA mini calculator that estimates daily, monthly and annual electricity costs from kWh usage.
- Daily electricity cost
- Monthly electricity cost
- Annual electricity cost
- Link to the full calculator
<iframe src="https://powerguardian.co.uk/embed/electricity-cost" width="360" height="300" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Electricity Cost Calculator by PowerGuardian"></iframe>Appliance Running Cost
£0.04
Kettle · 3000W per boil
About £15/yr if used daily.
Live preview
Appliance Running Cost
CalculatorsA quick calculator for the running cost of common household appliances like kettles, ovens and air fryers.
- Cost per use / per hour
- Kettle, dryer, dishwasher, oven, air fryer, TV
- Daily and annual estimates
- Link to the full calculator
<iframe src="https://powerguardian.co.uk/embed/appliance-cost" width="360" height="300" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Appliance Running Cost by PowerGuardian"></iframe>Guides & Savings
Energy Tip of the Day
Reduce boiler flow temperature
For combi boilers, setting flow temperature to around 60°C makes the boiler run in efficient condensing mode.
Typical saving: £60–£100 / year
Live preview
Home Energy Tips
Guides & SavingsA rotating daily energy-saving tip, each linking to the relevant PowerGuardian guide.
- One energy-saving tip per day
- Typical saving and effort level
- Link to the relevant guide
<iframe src="https://powerguardian.co.uk/embed/energy-tips" width="360" height="210" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Home Energy Tips by PowerGuardian"></iframe>Smart Meter Savings
Potential annual savings
£90 – £180
Estimated range only. Savings come from acting on the visibility a smart meter gives you.
Live preview
Smart Meter Savings
Guides & SavingsEstimated annual savings from smarter energy monitoring, based on a simple household profile.
- Estimated annual savings range
- Adjustable household profile
- Link to smart meter guides
<iframe src="https://powerguardian.co.uk/embed/smart-meter-savings" width="360" height="280" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Smart Meter Savings by PowerGuardian"></iframe>Carbon Savings
200 kg CO₂/yr
≈ 1,111 km of car driving avoided
Live preview
Carbon Savings
Guides & SavingsEstimated annual CO₂ reduction from common energy-saving actions, with a link to our green energy guide.
- Estimated CO₂ saved per year
- Selectable energy-saving actions
- Equivalent in everyday terms
- Link to green energy guides
<iframe src="https://powerguardian.co.uk/embed/carbon-savings" width="360" height="300" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Carbon Savings by PowerGuardian"></iframe>Attribution & terms of use
- Free for non-commercial and editorial use on UK consumer websites, blogs, councils, housing associations, landlords and charities.
- The "Powered by PowerGuardian" link must remain visible and clickable — this is how attribution to our data works.
- Data is provided for general guidance only and may differ from your personal tariff or supplier quote.
- Don't alter the widget to remove branding, change the data, or misrepresent PowerGuardian as the source.
- Questions or want a custom widget? Get in touch.
Frequently asked questions
Are the PowerGuardian widgets really free?
Yes. Every widget is free for non-commercial and editorial use on UK consumer websites, blogs, local authority pages, housing association sites and charities. The only requirement is that the 'Powered by PowerGuardian' attribution link stays visible and clickable.
How do I embed a widget on my website?
Copy the iframe snippet under any widget and paste it into your page's HTML where you want the widget to appear. It works in any CMS that allows custom HTML or embed blocks, including WordPress, Squarespace, Wix and Ghost.
Will the widgets stay up to date automatically?
Yes. Widgets load live from PowerGuardian, so when we refresh our price cap, forecast, supplier and tariff data, every embedded widget updates automatically. You never need to change the embed code.
Where does the data come from?
Price and forecast widgets use PowerGuardian's Ofgem-based price cap tracking and forecasting model. Supplier and tariff widgets use our Supplier Intelligence and tariff tracking. Calculator widgets use UK-average figures reviewed monthly. Each widget shows its own data source and last-updated stamp.
Do the widgets work on mobile and in dark mode?
Yes. Every widget is responsive, mobile-optimised, lazy-loaded and uses accessible colour contrast, and adapts to light and dark backgrounds so it blends with your site.
Can I request a custom widget?
Yes — get in touch via our contact page. The widget library is built to expand, so we can add new calculators, reports and data widgets over time.