Utility Rate Plan Summarizer

How Utility Rate Plan Summarizer works

Press Load model once: your browser downloads Gemma 4 E2B instruction-tuned (web build) (2.0 GB) from this site and keeps it in its cache. Then add your text and press Summarize locally. The model runs on this device using your graphics card, so nothing you enter is sent to a server. Until the model is loaded, or if your device cannot run it, the tool falls back to a simple keyword check and labels the result as the fallback.

Gemma 4 E2B instruction-tuned (web build) is a small open language model from Google. The tool sends it the instruction below plus your text, asks for a JSON answer with fixed fields, and shows each field as a card. It runs at temperature 0, so the same input gives the same answer on the same device, though different graphics cards can word it slightly differently.

Inputs longer than 6,000 characters are cut to that length before they reach the model, and the result says so. The model only sees what you paste: it does not look anything up.

The instruction the model gets

You summarise an electricity rate plan in plain English. Copy every price, time window, season, tier and fee exactly as written; do not average, compare or calculate anything. Point out what makes the plan expensive to use carelessly, such as a peak window or demand charge.

What it returns

• In plain English: Two sentences on how the plan bills.
• Time windows and prices: Each period (peak, off-peak, super off-peak, season) with its hours and price as written.
• Other charges and credits: Demand charges, fixed fees, baseline credits, tiers and minimums, as written.
• Watch out for: Usage habits that would cost more on this plan, based on its windows and charges.

Worked example

The model's output for the built-in sample, recorded on a desktop browser. Your run may word things slightly differently.

Rate plan: TOU peak 4-9pm at $0.48/kWh, off-peak $0.18, demand charge $16/kW, baseline credit applies first 320 kWh.

In plain English

This plan bills based on time of use, charging a higher rate during peak hours and a lower rate during off-peak times. A demand charge is also applied based on your peak usage.

Time windows and prices

peak 4-9pm at $0.48/kWh off-peak $0.18

Other charges and credits

demand charge $16/kW baseline credit applies first 320 kWh

Watch out for

Using electricity between 4pm and 9pm will be the most expensive. High peak usage will result in a higher demand charge.

The model

The files are served from this site, versioned so a cached copy is never stale. Nothing is fetched from a third party while you use the tool.

Limitations

• Small language models make mistakes: they can miss an item, merge two, or state something more confidently than the text supports. Check the result against your input before you rely on it.
• It needs WebGPU and about 8 GB of memory, so it is offered on desktops and laptops, not on phones and tablets. Devices that cannot run it get the keyword fallback, clearly labelled.
• Results describe the input you gave, not the real-world situation behind it. Review them yourself before acting.

Good uses

• Triage energy and utilities notes before deeper review
• Prepare consistent labels for repeat workflows
• Reduce manual sorting on small batches
• Keep sensitive drafts in the browser preview