Elisa Kotiakku

 The blog post you shared is a personal account of installing and using the Elisa Kotiakku home battery system. It describes the process from solar panel installation to battery setup, challenges during installation, and the benefits of joining Fingrid’s reserve market through Elisa. It also includes a referral code for discounts on new installations.

🔑 Key Highlights from the Blog

• Solar panels first (spring 2024): The author installed a 6.4 kWp solar panel system and chose a Growatt hybrid inverter to prepare for future battery use.

• Battery boom (winter 2024–25): After reading forums and blogs, they reserved a Teravoima battery but later switched to Elisa Kotiakku in spring 2025.

• Why Elisa Kotiakku?

  • Offered interest-free and fee-free financing.

  • Enabled participation in Fingrid’s reserve market, where households can earn compensation for providing grid flexibility.

  • Provided a large battery with expansion potential.

• Installation process (summer 2025):

  • Two battery towers were installed and connected to a Huawei inverter (replacing the Growatt).

  • Initial issues: one tower didn’t appear in the software. Multiple resets and a controller replacement didn’t solve it immediately.

  • Eventually, after support from Elisa and Huawei, both towers became fully operational.

• Referral benefit:

  • The author received a referral code (B2MQ6S0VN4).

  • New customers using this code get €200 off installation costs.

  • Offer valid until 31 May 2026.

⚡ Why This Matters

• Energy independence: Storing solar energy allows the household to use more of its own electricity instead of selling excess cheaply to the grid.

• Financial benefit: Participation in Fingrid’s reserve market helps offset the investment cost.

• Scalability: The system allows future expansion once tested and proven.

📌 Practical Takeaway

If you’re considering a home battery in Finland, Elisa Kotiakku offers financing, grid market participation, and a referral discount. The blog shows that while installation may face technical hiccups, support eventually resolves them, and the system can provide both savings and resilience.

Would you like me to break down how Fingrid’s reserve market works for households so you can see how the compensation model offsets battery costs?