I will design bess sizing, battery layout and sld for solar
Solar PV Design Manual J Xactimate
About this Gig
Not sure how big a battery and solar array you actually need to keep your home running through an outage, or worried your installer's numbers don't add up? I've seen homeowners buy an oversized inverter paired with an undersized battery and end up with a system that can't carry the load past a few hours. I design complete hybrid solar and battery systems sizing, wiring, and single line diagram - so your battery, inverter, and panel setup are matched correctly before you buy anything.
What you get:
- Battery capacity sizing (kWh, DoD, round-trip efficiency) matched to your daily load
- Solar array sizing (kWp, panel count, string layout) for your target autonomy
- Single line diagram: DC combiner, battery bank, hybrid inverter, ATS, and AC panel
- Component list matched to your home's actual load profile
Undersize it and you're back in the dark after a few hours. Size it right and your hybrid system actually rides through the outage and holds up to inspection.
I work daily with LiFePO4 battery banks, hybrid inverters, and home backup wiring, so your solar battery system is sized right the first time.
Contact Me Before Ordering.
Project type:
Residential
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Commercial
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Office & workspace
Solar system type:
Grid-connected
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Off-grid
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Hybrid
Software:
Aurora Solar
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AutoCAD
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SAP2000
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
Other Building Engineering Services I Offer
FAQ
How do you calculate the battery size I need?
I size to your daily load ÷ depth of discharge ÷ end-of-life factor — for example, a 12 kWh/day load at 80% DoD comes out to roughly a 16 kWh nameplate LiFePO4 pack.
Can you size the solar array too, or just the battery?
Both — Standard and Premium include solar array sizing (kWp, panel count, string configuration) matched to your battery and daily production target.
Do you include the wiring/ATS setup in the diagram?
Yes, Premium's single line diagram includes the DC combiner, battery bank, hybrid inverter, automatic transfer switch, and AC distribution board down to breaker level.
What file formats do I receive?
PDF for review on all tiers, plus editable DWG/Visio source files on Premium.
Will this work for an off-grid system, not just grid-tied?
This gig is built around grid-tied hybrid systems with utility backup; message me first if you need a fully off-grid design so I can confirm fit.
How fast can you turn this around if I need it urgently?
Standard delivery is 3-6 days by tier; rush delivery is available as a paid extra.
