The OnSun Blog
Practical, no-jargon guides for solar owners: when to run each appliance, how to lift your self-consumption past 60%, and how solar forecasting turns the week's weather into a smaller power bill.
Practical, no-jargon guides for solar owners: when to run each appliance, how to lift your self-consumption past 60%, and how solar forecasting turns the week's weather into a smaller power bill.
From 2027 a 10 kWh battery at €6,000 takes 12.5 to 15 years to pay off in Amsterdam, and under €3,800 it pays inside ten. Timing the dishwasher, the washing and the car is free and worth €120 to €230 a year.
Lees dit artikel in het Nederlands: Is een thuisbatterij de moeite waard na salderen?
In Sydney, Brisbane and Melbourne a 13 kWh battery takes a little over nine years to pay for itself. Running your appliances in daylight is free and worth $200 to $500 a year from the first week. Doing both beats either.
Mid-latitude panels make 2-3x more per day in summer than winter, and 10-25% of normal under heavy cloud. Includes a free tool for your location.
Weather models, sun geometry and your panel specs become an hour-by-hour production curve. Here is how.
Exporting earns 4-8c/kWh; buying it back costs 25-40c. Why self-consumption is where the real savings live.
Usually 10am-3pm, but the window moves daily with the weather and your roof. How to time washing, pool pumps and EV charging.