# Solar Farm Miner V1.0 and V2.0 Glossary

**Fresh Value:** Fresh Value is a mechanism exclusive and original to Solar, originally created by our developer Xipz for Solar Farm Miner V2.0. Fresh Value is the Total Deposit - Total Withdrawals ≥ 0. Essentially, it tracks how much “fresh” BNB you have deposited into the miner. It’s making a return in Solar Kingdom due to the competitive edge it provides our TVL, in terms of stability.

**Engineer:**  A user who owns and operates their own Daily ROI Reactor but has 0 referrals (they are a basic, solitary investor).

**Supervisor:** An Engineer who owns and operates their own Daily ROI Reactor but has also referred other Engineers to **invest** and **build their own Daily ROI Reactors** (they are an investor that has referred other investors).

**Daily ROI Reactor:** When you invest in Solar Kingdom you become an Engineer and you are given your own Daily ROI Reactor. 

**Fuel Cells:** Your Daily ROI Reactor is fueled by Fuel Cells. When you make a BNB deposit, your BNB is automatically converted into Fuel Cells and then fed into your Daily ROI Reactor.

**Depleted Cells**: Fuel Cells become as soon as you deposit Depleted Cells. The more Total Depleted Cells you have, the higher your Daily ROI Reactor’s Value. Fuse your rewards to attain more depleted cells.\
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**Fusing:** Fusing (Compounding) is the process of taking your rewards and reinvesting them to receive more depleted cells. The power of compound interest cannot be underestimated and those who continue to fuse will increase their Daily ROI at a rapid pace.

**Harvesting:** Harvesting is the process of selling your rewards to receive BNB back into your wallet.


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