about getting annual heating and cooling load based on specific location

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You can use Output:Meter for this, if you are looking for a total value for the home. In particular, these meters will be of interest

Output:Meter,Heating:*,Hourly;
Output:Meter,Cooling:*,Hourly;

Let's break down the first one Output:Meter,Heating*,Hourly;:

• This is the form <EndUseType>:<ResourceType>:<name>. You are asking to report the End Use Heating and using a wildcard to return all ResourceType (fuels)
• The reporting frequency is set to "Hourly", meaning you will get 8760 values.

You might want to be more specific, for example Heating:Gas to return the gas consumption used for heating (if you have a boiler for example). Or Heating:EnergyTransfer if you want to look at the energy actually used to condition your zones.

Look at the documentation I linked above for more information (and more options). You should also look at the Output Details and Examples Volume for eplusout.mtd documentation: after a successful run you can look at the eplusout.mtd file that is created by E+ which will show you available meters and what they report exactly.