3 ms·

Or just charge a battery with the solar panels at much greater efficiency.

• adrian_b 5y ago
  For short-term storage a rechargeable battery is certainly preferable. For long-term storage, the battery auto-discharges, so the efficiency drops quickly with the storage time, until it becomes much less than for storing the energy by synthesizing some appropriate chemical compound. For storing solar energy, both short-term storage (e.g. for a day or a week), like rechargeable batteries, and long-term storage (e.g. for a year or more), like synthetic gasoline, are needed.
  • SigmundA 5y ago
    Lithium self discharges at 1-2% per month, not an issue in most circumstances, not sure where it would be an issue, if it was just have a maintaining solar panel nearby.