1. ESS (Energy Storage System):
   a system that stores electricity for later use.
2. BESS (Battery Energy Storage System):
   an ESS that uses batteries to store electricity.
3. AIO (All-In-One):
   a compact unit that combines batteries, inverter, and controllers in one product.
4. Inverter:
   a device that converts electricity from direct current (DC) — used in batteries and solar panels — to alternating current (AC), which powers your home and the grid.
5. EMS (Energy Management System):
   AI-driven smart software/hardware that controls and handles how energy flows between your home, battery, solar, and the grid.
6. VPP (Virtual Power Plant):
   a network of many home batteries working together like one big power plant, trading electricity on energy markets.
7. Grid export:
   selling electricity from your battery or solar panels into the public grid.
8. Grid import:
   buying electricity from the public grid (e.g., when prices are low).
9. Savings:
   reduction in your electricity bill by using stored cheap energy instead of expensive peak-time electricity.
10. Earnings:
    extra income you receive when your battery participates in trading activities through the Besst VPP.
11. Besst VPP:
    Besst’s Virtual Power Plant platform, where all connected household batteries operate together on the energy market.
12. Besst partner:
    a household or business that owns/uses a Besst AIO and participates in the Besst VPP.
13. Community business model:
    the way Besst unites thousands of small partners into one cooperative power system, sharing revenues fairly.
14. DSO (Distribution System Operator):
    local company that manages electricity distribution lines to your home (responsible for meters and connection approvals).
15. TSO (Transmission System Operator):
    national operator that manages high-voltage electricity transmission and balancing of the whole power system.
16. MPPT (Maximum Power Point Tracking):
    a smart controller inside the inverter that ensures solar panels always deliver maximum output.
17. Ancillary markets (balancing):
    special electricity markets where batteries provide grid balancing services (frequency regulation, reserve capacity).