Half-hourly electricity analysis

Turn electricity data into a better commercial conversation.

Watt TF shows what a site uses, when it uses it, what that pattern may cost, and where the next energy opportunity deserves a closer look.

Tool access View sample report

Upload data

Read patterns

Export insight

Illustrative analysis view

Demand profile, typical week

kWh / half-hour

Peak window

09:30 to 16:00

Insight

Daytime demand is visible before a project conversation begins.

Two early-stage use cases

The same data, interpreted for the decision in front of you.

Choose the lens that best matches your sales or feasibility conversation. The underlying analysis stays grounded in the site's actual half-hourly profile.

For consultants and brokers

Make the billing conversation more precise.

Turn half-hourly electricity data into a clear view of consumption, demand, tariffs and cost. Watt TF helps you move from raw client files to a report that supports the next commercial conversation.

Annual or monthly deep dive analysis

Peak demand and load factor

Tariff, DUoS and cost insight

Client-ready PDF reporting

Solar and battery storage assessment

Client-ready reporting

A report built to move the conversation forward.

The final report brings headline metrics, demand patterns, cost-related analysis and practical observations together in a format that can be reviewed on screen or shared with a client.

01Headline consumption and demand metrics

02Daily, weekly and heatmap views

03Billing-side analysis where the data supports it

04Export designed for practical client review

Download sample report

Report preview

Sample

Watt TF report screenshot: monthly total kWh bar chart with a summer peak — Monthly total kWh

Watt TF report screenshot: average daily load profiles for Monday to Sunday, showing lower weekend demand — Average daily profiles, Monday to Sunday

Watt TF report screenshot: monthly by time-of-day heatmap of average kWh per half-hour — Monthly by time-of-day heatmap, avg kWh per half-hour

Renewable feasibility

Solar and battery storage, sized against real demand.

Beyond consumption and cost, Watt TF tests what the same half-hourly data means for solar and storage — comparing solar-only and solar-plus-battery scenarios against the timing of the site's own demand, with the key assumptions left open for review.

Solar panels on a commercial roof with a battery storage installation — Solar PV and battery storage — indicative assessment from half-hourly data

Solar-only view

Indicative PV sizing driven by self-consumption, with daytime generation compared against actual half-hourly demand.

Battery added

The additional bill reduction of solar plus battery over solar-only, with AC or DC connection and dual-tariff options.

Sizing and payback

Battery sizing held against solar capacity, with a simple payback view for the combined solar and battery case.

Assumptions in the open

Installation costs, tariffs and export rates remain overridable, so the assessment can follow the user's own numbers.

How it works

From file upload to a useful first view.

Upload

Add the available half-hourly electricity data and set the site parameters relevant to the analysis.

Interpret

Review consumption, demand, timing, cost and operating-pattern views in one place.

Export a structured report for the next client, sales or feasibility conversation.

Next step

Ready to examine a site in more detail?

Tool access will take you to the, free to use, basic version of the tool. Please speak with your Watt Time & Frequency representative or email hello@watt-tf.com to explore the full functionality and user options.

Open Watt TF Free Open Watt TF Pro

Access tiers

Unlimited access to Watt TF free features. In-depth analysis with Watt TF Pro.

Unlimited use of the free features: no sign-up, no time limit, no cost. For a more granular examination Watt TF Pro takes the analysis deeper: monthly breakdowns, tariff and DUoS costs, the solar and battery assessment and the full client-ready report, watermark free.

Included capability

Free

Pro

Understand the data — free to use

Annual analysis of a half-hourly CSVSingle file upload, runs in the browser

Headline metrics: total kWh, peak kW, load factor

Daily and weekly load profiles plus heatmap

Out-of-hours and base-load observations

One-page PDF summaryWatermarked, emailed on request

Act on the insight — Pro

Monthly deep dive analysisPro

Tariff, cost profile and DUoS band analysisPro

Solar-only assessmentPro

Solar + battery: AC/DC, dual tariff, paybackPro

Full client-ready PDF reportProNo watermark, ready to share

Teams and partners

Branding, themes and logo handlingPartner

Multiple files and portfolio viewPartner

Free on-screen analysis needs no sign-up. Pro capabilities are enabled for authorised users — speak with your Watt Time & Frequency representative or email hello@watt-tf.com to discuss access.

Guides and resources

Get more from the analysis.

Use the guides to prepare a compatible data file and interpret the report outputs with the right context.

Guide 01

Getting Started Data Guide

Preparing your CSV file for Watt TF analysis.

Download PDF →

Insight 01

Half-Hourly Electricity Data

What the readings can reveal about consumption trends, solar potential and battery storage.