As Ostrom's sole in-house designer, I took the app from simple usage tracker to full home energy management platform—while also shaping the branding and marketing assets.

Services

UX/UI
Branding
Socials
Print

Tools

Figma
Adobe Suite
Webflow

Client

Client

As Ostrom's sole in-house designer, I took the app from simple usage tracker to full home energy management platform—while also shaping the branding and marketing assets.

Services

UX/UI
Branding
Socials
Print

Tools

Figma
Adobe Suite
Webflow

Client

Client

2021

2022

2023

2024

I designed the Ostrom app from scratch, establishing the initial design system and building core flows for consumption tracking via meter readings, payments, and contacting support.

2021

As Ostrom’s founding designer, I built the app from scratch. I established the initial design system and core flows for consumption tracking via meter readings, payments, and contacting support.

2022

Gradually we added EV charging, HVAC control, and solar panel monitoring. I designed each integration, translating complex technical requirements into intuitive user flows.

2023

As the app evolved into a full energy platform, the original UI reached its limit. I led a structural redesign, introducing a modular, tile-based architecture to ensure the UI could scale cleanly.

2024

I designed a specialized dashboard for the dynamic tariff. This interface transforms real-time smart meter data into actionable insights, helping users optimize spending against market prices.

users with the standard tarif can input meter readings to keep track of usage
dynamic tariff users have access to more data + filters
users with the standard tarif can input meter readings to keep track of usage
dynamic tariff users have access to more data + filters
users could connect as many devices as needed
overview screen — solar inverter
overview screen — EV charging
users could connect as many devices as needed
overview screen — solar inverter
overview screen — EV charging

As Ostrom grew, the brand needed to keep pace. I refined the logo for clarity at every size, and extended the colour palette to make the brand feel more welcoming, and designed ad campaigns (both online and OOH).

The marketing assets I designed struck a good a balance between trustworthy, transparent, and a little bit tongue-in-cheek (where appropriate). As our following and customer count grew, Ostrom brought on a social media manager who I worked with to build modular templates in figma that they could use across platforms.

I also designed merch, given away both internally and externally, and actually worn regularly (not just at work events!).

As Ostrom grew, the brand needed to keep pace. I refined the logo for clarity at every size, and extended the colour palette to make the brand feel more welcoming, and designed ad campaigns (both online and OOH).

The marketing assets I designed struck a good a balance between trustworthy, transparent, and a little bit tongue-in-cheek (where appropriate). As our following and customer count grew, Ostrom brought on a social media manager who I worked with to build modular templates in figma that they could use across platforms.

I also designed merch, given away both internally and externally, and actually worn regularly (not just at work events!).

© 2026 Taryn Hart
Impressum + Datenschutz
© 2026 Taryn Hart
Impressum + Datenschutz