ElLär

ElLär is a prototype that compares electricity contracts based on a household's usage. I was responsible for the concept, UX and design.

UX design
Mobile first
Data visualisation
AI advisor
Prototype

Visit the site (elproj.nightwave.se)

A prototype that works out what different electricity contracts would have cost a household over the past year and suggests one.

Type: App
Role: Concept, UX and design.
Client: Own product
Period: 12-23 October 2026
Tech: TanStack Start, React, TypeScript, Tailwind CSS, Claude API, Vitest

Contracts based on usage

Which electricity contract pays off depends on when a household uses electricity.

steps from postcode to recommendation: 3
suppliers in the comparison, with example prices: 7

ElLär's results page on desktop with a bar chart of monthly cost on the left and the recommended contract on a rose panel on the right

The prototype

The comparison

Every contract is priced on a year of usage.

Usage
The meter file stays with the user.
The AI advisor
Suggests a contract without seeing the readings.
Two languages
Swedish and English.

The recommendation on a phone with yearly price, saving and a flower whose height shows the size of the saving

The monthly cost chart on a phone, with a flower under each month the recommended contract is cheaper

Twelve days in October

The first version

A working prototype

The prototype uses example prices and does not sign any contracts.

Get in touch.