Ok, this time I am serious (Texas)

The short answer--It will be fairly expensive to setup a solar power + battery + AC inverter system to run your 700 Watt @ 110 VAC split capacitor pump.

It does depend on what you are trying to do... Do you want a system that only runs during daylight? Do you want 24 hour a day operation? Do you have AC power available to the pump?

If you are trying to save money... First you should measure the power used by the existing pump with a KIll-a-Watt type meter:

https://www.amazon.com/s?k=kill-a-watt+meter&crid=1Q15KNJUHJJFA&sprefix=kill-a-watt,aps,281&ref=nb_sb_ss_i_2_11

You will find a 700 Watt motor running 24x7x30 days a month--That is as much power as the average North American home uses in a month:

• 700 Watts = 0.7 kWatts
• 0.7 kWatts * 24 hours per day * 30 Days per month = 504 kWH per month (average home uses around 500-1,000 WH per month)

Typically, with solar power, you try to find the smallest/most efficient "device" you can that does just what you need (and perhaps limited hours per day)--All to save energy usage.

We can go into great depth of design--But it probably would not be cost effective for you just to power this as a pond pump.

The cheapest and easiest method to solar power on a home is to install a "Grid Tied" solar power system. Basically, solar array + GT AC Inverters which connect directly to your main breaker panel. You (usually) need a building permit, utility approval, and an electrician/solar installer (can be a DIY project--But lots of details to work out first).

GT Solar is usually very cost effective--However, there can be issues (local utility may not allow, HOA may have issues, you need roof/land clear of trees/buildings/shade to get direct sunlight, etc.).

-Bill