Until now, this range of solar pumping could only be performed efficiently by rod-driven jack pumps, which are extremely bulky and expensive. SunRise fills that gap. Most solar pumps use centrifugal impellers, requiring much more power. SunRise requires a smaller, less costly solar array. When the sun shines, the pump fills a storage tank.
Most systems pump only during daylight hours and require no costly batteries.
Batteries may be used if a large storage tank is not practical. SunRise uses a positive displacement sealed piston mechanism to force water up. An oval camshaft drives two opposed horizontal pistons, in balance. These three moving parts run on roller bearings in non-toxic oil, sealed by flexible gaskets. The two check valves are rubber.