Decent Energy · Home energy · Climate tech
Two years embedded with a home-energy start-up, from first brand to flexibility trading
Decent Energy helps households with solar and batteries cut cost and carbon by shifting when they use power. We have been their embedded lead developer since 2024: brand and site, customer onboarding, supplier and inverter integrations, the customer dashboard, an admin portal and the marketing CMS.
Visit the live site- 2
- years
- 5
- integrations
- 20
- CMS section types
- 0
- old CMS URLs left
embedded, and counting
Octopus, FoxESS, GivEnergy, n3rgy, Electralink
migrated from Prismic to Mojimoto
after the move
The problem
Decent Energy's product is clever and unglamorous: forecast what a house will use and generate, then charge, hold or discharge the battery in half-hour steps so the household pays less and burns less carbon. The hard part is not the maths. It is getting a real customer from "interested" to "connected": consent, tariff details, smart-meter access, and credentials for whichever inverter happens to be on their wall.
They had a data science team building the engine. They needed someone to own everything a customer touches.
What we did
Kai started in August 2024 with the brand and a marketing site, and has been embedded as lead software developer since, working alongside Decent's own engineers and data scientists.
The onboarding platform came first: a multi-step flow that saves and resumes, syncs to the CRM, captures consent, and collects credentials for Octopus, FoxESS and GivEnergy accounts. Then smart-meter consent through n3rgy and Electralink, a customer accounts API, and an installation model so every consent and control decision is tracked per property rather than per person. In 2026 we redesigned the internal admin portal, rebuilt the customer dashboard, and brought their flexibility-trading estimator into the main app so customers can see what selling flexibility to the grid could earn them.
The AI-first way of working arrived partway through, and it shows in the pace of the last twelve months. Same rules as everywhere: review gates, tests first, and a couple of hard-won project rules written down so they never happen twice. Along the way we also moved the marketing site's content out of Prismic and into Mojimoto, all twenty section types, with image crops preserved and not a single old URL left behind.
What changed
Decent Energy has a founder-to-customer journey that works end to end, a marketing site their own team edits, and a developer who has been in the codebase long enough to know where the bodies are buried. Customer and savings figures are theirs to publish; the engagement itself is the outcome we can point to: two years, still going, still the same person.
Your Ikigai have been instrumental in getting our startup off the ground. From logo design, creative, leaflets and web design they've been attentive, responsive and really sought to understand our needs as a business. They also really believe in what our business is trying to achieve. I guess they really are bought into our Ikigai.
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