Energy ToolsetHow Solar Bill Before After Checker 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 Check 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 two texts, 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 compare an electricity bill from before solar panels with one from after. Copy the usage, export, credits, demand and fixed charges and totals from each bill exactly as written. Do not add, subtract, multiply, average or convert any numbers; copy every figure exactly as written. Point out charges that still appear after solar and terms to check, such as expiring credits or a demand charge. Do not give financial advice.
What it returns
- Before solar: Each figure from the first bill, written as 'item: figure'.
- After solar: Each figure from the second bill, written as 'item: figure'.
- Charges that remain: Charges on the after-solar bill that solar did not remove, such as demand, connection or minimum charges.
- Worth checking: Terms or gaps to confirm with the utility or installer, such as credit expiry, export rate, or different billing periods.