Surplus energy from the solar water may be used for thermal energy storage materials of high thermal inertia of the concrete, the ground directly under the foundation .
Nishati ziada kutoka maji ya nishati ya jua inaweza kutumika kwa ajili ya mafuta vifaa kuhifadhi nishati ya Inertia high mafuta ya saruji, ardhi moja kwa moja chini ya msingi .