Education
Practical guides to using electricity smarter and saving money
Cut Your Winter Electricity Bill 2026/27: The Complete Checklist
Twelve steps to lower heating and electricity costs this winter, plus a widget showing what scheduling heating to cheap hours would have saved in your country last winter.
Your Water Heater Is the Cheapest Home Battery You Can Buy
A 200 L tank stores as much energy as a home battery with zero conversion loss. Turn it into price-aware storage with a Shelly plug and Elewatt, and see what it saves.
Transparent Electricity Pricing: Your Real Cost per kWh
See what 1 kWh really costs: spot market price, grid fees, taxes and supplier margin explained — and how to check your true electricity price live.
From One Tinkerer to Another — Welcome to Elewatt
The story of why Elewatt was built — and how it might be exactly what you've been looking for.
Smart EV Charging: Save money by charging at the right time
Electric vehicles are expensive to run at peak hours. Learn how to automate charging to always use the cheapest electricity.
Electric Radiators & Smart Heating: Cut your winter electricity bill
Heating is the biggest electricity cost in Baltic homes. Learn how to automate electric radiators to run only during the cheapest hours.
Shelly Smart Relay Integration: Automate any device by price
Connect your Shelly devices to Elewatt and let price-based schedules control when they run — no manual action needed.
Shelly Plug S Gen3 Setup: Automate on Cheap Electricity
Set up a Shelly Plug S Gen3 in minutes and run your appliances on the day's cheapest electricity hours automatically. Setup guide, tips and savings.
Shelly Electricity Tariff: Live prices, plug-and-play
Push live electricity prices to Shelly's Electricity Tariff API in 5 minutes. No scripts, no Home Assistant — just paste one URL into Elewatt.
Daikin Onecta: Smart heat-pump scheduling for cheap-hour heating
Connect your Daikin heat pump to Elewatt via the Onecta cloud and automatically heat during the cheapest electricity hours.
What Does 1 kWh of Electricity Actually Cost in Estonia?
Understand all five components of your electricity bill — and why the spot price alone tells only part of the story.
From Electricity Savings to Investment Growth: A Thought Experiment
A €25 smart plug saves ~€500/year on your water heater. What if you invested that money instead of spending it? Here is what 20–30 years of compound interest looks like.
Smarter Together: How Demand Flexibility and Battery Storage Complement Each Other
Smart demand shifting and battery storage aren't rivals — they work toward the same goal. Discover how both technologies complement each other to create a stable, affordable, low-carbon grid.
What Is a Smart Grid? Pros, Cons & How You Save
A plain-English guide to smart grids — how they work, their pros and cons, and how automating your home cuts your bill while helping balance the grid.
The Gigacorn Challenge: Save 1 Gigatonne CO₂/yr
How smart demand control for water heating and EV charging is one of the clearest paths to 1 GT of annual CO₂ savings — and the full calculation showing how Elewatt gets there.
Fixed or Stock Electricity: Which to Choose?
Compare fixed and stock electricity prices, understand who benefits from each, and use our calculator to find the best option for your household.
Spot Price Apps for Smart Homes: The Complete Guide
Compare apps and tools that shift your home's electricity use to the cheapest spot-price hours — from open-source scripts to platforms like Elewatt.
Electric vs Petrol Cars: Complete Cost Comparison & Future Outlook
Compare electric and petrol cars: running costs, maintenance, environmental impact, battery recycling, and total cost of ownership.
Best Balcony Solar & Battery Backup Systems
Compare Anker Solix, EcoFlow, Bluetti and Zendure balcony solar batteries — and charge them on the cheapest spot-price hours with Elewatt.