[RE-wrenches] Electric Water kWh/ person

[frenergy]

Drake,

             It would help to know....is this duplex already built? and 
considering where you live, is a woodstove being considered for space heat?

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net

On 3/14/2018 4:19 PM, drake.chamberlin at redwoodalliance.org wrote:
> Hello Wrenches,
>
> Is there a good way to estimate the power that will be consumed for 
> electric water per person per day? We are estimating the amount of 
> power that will be used by an all electric duplex, and the water 
> heater amount seems high. The current model we have claims 3493 kWh/ 
> year per 26 gallon tank will be consumed. With the two units, that 
> would add up to 6986 kWh / year for hot water, pushing the system size 
> to humongous for a 1300 ft sq building.
>
> Does that seem high? There will be a maximum of 2 people per unit.
>
> The owner is considering going to 115 V units with a 15 gallon tanks. 
> I think the smaller tank would help, but it would seem that the amount 
> of hot water consumed would be the main issue.
>
> How can we get a good estimate for a per person energy usage for 
> electric hot water? Any other suggestions are welcome.
>
> Thank you,
>
> Drake
>
>
>
>
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