I want to know the answer to the following question:
How much energy was the Solar Two able to store using salts?
All the background I'm provided with is that "The Solar Two used this method of energy storage, allowing it to store 1.44 terajoules (400,000 kWh) in its 68 cubic metres storage tank with an annual storage efficiency of about 99%.". Is that enough to answer the question?
Answer: yes