Solar energy mobile app

* Unfortunately, since the project is confidential because of my employer's NDA contract, it isn't possible to share more details about the design deliverables. If you have any questions about the process or any particular aspect of the project, let me know.

About the project

This mobile application is developed for one of the largest solar panel installation companies in Jönköping, Sweden, with a strong presence across Sweden and Norway. As part of the in-house tech team, I contribute to building a solution that enhances customer engagement and creates new business opportunities.

Designed for solar energy consumers, the app goal is to help users monitor and optimize their energy usage. Available for iOS and Android, it provides essential tools to track solar savings, energy consumption, manage EV charging, electrical vehicles, and participate in energy markets and battery optimization (savings).

Key Features:

Real-time insights into solar energy consumption and savings
EV charging management using the company’s chargers
Consumption history tracking for vehicles and home energy usage
Participation in energy markets, allowing users to optimize battery storage for peak shaving and cost savings and gains.

This app is a strategic initiative to improve customer experience, introduce subscription models, and provide better cost transparency compared to competitors. By integrating smart energy management with an intuitive user experience, it empowers users to make informed energy decisions while maximizing their savings.

Role in the project

As the only UX/UI Designer in the team, I was responsible for shaping the app’s user experience and visual identity. My work included:

UX Design:

Conducted user research to define key customer profiles and behavior
Led competitive analysis (SWOT) to assess strengths, weaknesses, and opportunities
Ran user testing with stakeholders to refine features and improve usability
Defined UX research strategies and metrics to continuously enhance the experience
Work on a strategy for UX research once the application is launched using Mixpanel and surveys.

UI Design:

Collaborated with an external agency to establish the brand’s style guide
Designed, perform regular maintenance, and built a scalable design system, balancing native iOS/Android components with custom elements
Created high-fidelity UI designs for key features, including flows, navigation, and interactions
Conducted exploratory testing to ensure smooth implementation
Maintained and expanded a design library for future iterations

I worked closely with the marketing, development, and QA teams, ensuring a seamless collaboration under the guidance of the Product Owner (PO).

Biggest challenges

One of the biggest challenges was the uncertainty during the feature definition phase. The initial goals were not clearly defined, which made it difficult to determine which features should be prioritized. Aligning business needs with user expectations required extensive discussions and iterations.

Another key challenge was understanding the market and the target users. Since I usually design for users in North America and Latin America, adapting to a new demographic in Sweden and Norway required a shift in approach. User behaviors, expectations, and interactions with solar energy solutions differ across regions, making it crucial to conduct thorough research and familiarize myself with this new audience.

Additionally, the project’s confidentiality limited direct user research, so we had to rely on competitive analysis, internal insights, and stakeholder feedback to shape the initial product direction.

Despite these challenges, collaboration with the team and continuous learning helped refine the application’s vision and create a user-centered experience tailored to this new market.

Chosen solutions

To maximize customer engagement and stand out from competitors, the company decided to develop a custom mobile application tailored to its users. This application serves as Version 1, laying the foundation for future enhancements based on user feedback and business needs.

The solution enables:

Subscription-based models and personalized user experiences
Better cost vs. savings transparency compared to competitors
A scalable and user-friendly interface designed to evolve with business goals

To ensure continuous improvement, a UX research plan has been defined to analyze how users interact with the app and identify areas for enhancement. This plan will help determine the next steps for development, ensuring that future updates align with both user expectations and business objectives.

Through an iterative UX/UI approach, the app is designed to evolve dynamically, integrating real-world insights and data-driven decisions to enhance the overall experience.

Outcomes and lessons learned

The design phase has been successfully completed, with all designs carefully crafted to align with both iOS and Android guidelines for a seamless, native user experience. The application is now in development and is expected to launch in Q2 of 2025. Throughout this process, continuous user testing and stakeholder feedback have been instrumental in refining the product.

Key takeaways

Early MVPs reduce rework – Delivering a Minimum Viable Product (MVP) as soon as possible helps validate assumptions, gather feedback, and refine features efficiently.
Collaboration is key – Strong communication with marketing, development, and QA teams has led to smoother development and a higher-quality product.
Validate technical feasibility early – Ensuring close collaboration with developers to assess feasibility before development starts helps reduce complexity and avoid roadblocks.
Adaptability in research – Due to project confidentiality, direct customer research was limited. Instead, leveraging competitive analysis and internal insights proved essential in defining user needs.
Designing for a different demographic is a game-changer – This project involved designing for users in Sweden and Norway, a market I was less familiar with, having previously focused on North American and Latin American audiences. I learned that understanding cultural nuances, user behavior, and regional preferences is crucial. This shift required adapting my design processes to ensure the app resonated with the local demographic, impacting decisions on visual design, interactions, and user flows.

With the upcoming launch, the focus remains on optimizing the user experience, refining key features, and ensuring a smooth integration into the company’s energy ecosystem.

Solar energy mobile App – Scalable & Intuitive UI

I designed a clean, user-friendly UI for a solar energy monitoring app, ensuring a seamless experience on both iOS and Android. To keep the design scalable and consistent, I built a design system based on a style guide from an external agency, adapting it to fit the app’s needs.

Collaboration was key—I worked closely with the development team to make sure designs were feasible and translated well into the final product. I also reviewed flows, interactions, and UI implementation to ensure a smooth user experience.

These screens are just a small glimpse of the many I created, showcasing my ability to design for scalability, cross-platform adaptation, and teamwork.