Self consumption

This is a term that is used very often when talking about renewable energy installation. Indeed, if you have chosen to install solar panels and/or small wind, you must have asked yourself certain questions, including that of self-consumption! Self-consumption allows you to take a step closer to energy autonomy, targeting 100% autarcy.

Solar and Wind self-consumption: consuming the energy you produce

When we talk about solar and wind self-consumption, we are talking about directly consuming the energy produced by your photovoltaic panels and the wind turbine. There are several ways to enhance your production:

When thinking about the profitability of your wind and solar project, the logical way to setup your system is to directly consume the energy produce on site then store the excess in battery bank before feeding back to the grid.

In Sweden, the weather and season play an important role in sizing the system and the combination of solar and wind make a lot of sense, by providing energy in summer with long sunny day and winter with short windy day.

Total self-consumption

Total self-consumption means that the person who owns solar panels and wind turbine undertakes to use all of his electricity production. Each installation must remain connected to the network in order to take over when solar energy is not available (at night for example). Thus, when you do not consume all of your electricity, it is injected into the network automatically. It is important to keep in mind that consuming all the electricity produced does not allow you autonomy; you have the possibility of becoming energy independent only if you have a domestic battery.

Self-consumption with storage of surplus

To optimize your consumption based on your on-site production, you are looking at injecting back to the grid as low as possible and save it for later. Solar will produce during daytime and wind in theory will produce as long as the wind blows, which is not 100% of the time. Therefore you want to have energy ready at any time and this is where your local storage via lithium batteries is coming into action. Recent inverter development can manage battery by charging and discharging and having the parameters setup to Solar / wind self consumption optimization. Equipment such as the Next3 will choose various scenarios depending on your local condition.

Own consumption with storage

Full Grid Feeding: Self-consumption without the use of storage

Zero Grid Feeding: Your energy just for you

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