Autonomy scoreLocal analysis
Jacksonville Home autonomy potential in Jacksonville (32202)
The strongest asset here is Low-carbon heating. It is not, however, what pays your home the most: that is Food growing.
Annual potential, standard home
$1,965
Four items added up — each one is a separate decision, in whatever order suits you.
Overall score
65 /100
Advanced
Jacksonville: 65/100 achievable autonomy with a recommended setup.
Strong potential — high self-sufficiency in energy, water & food is well within reach.
What you could reach in Jacksonville
A typical home in Jacksonville can reach about 65% self-sufficiency with a right-sized solar, storage, rainwater and low-carbon heating setup — most of it backed by federal tax credits. The figure sharpens once you enter your own home.
- ≈172 days a year off the grid — keep the fridge, lights, router and heating pump running straight from your own roof and battery, right through a winter outage.
- Rainwater self-reliance — ≈109,310 L harvested from a 100 m² roof covers the garden and toilet flushing, so hosepipe bans stop mattering.
- A real harvest — ≈320 kg of fresh vegetables over a ≈329-day frost-free season takes a genuine bite out of the weekly shop.
- A warm, low-bill winter — insulation plus a right-sized heat pump turns the local climate into low-carbon comfort and shields you from gas-price spikes.
From the most to the least profitable, here
What you could gain
-
Food growing70/100
~$896/yr
off the weekly shop — up to ≈320 kg/yr of fresh vegetables from 100 m²
The detail
Realistic outlook
With about 329 frost-free days, a household garden in Jacksonville supports up to three planting rotations a year.
Watch-outs
A productive garden needs space, decent soil and a few hours a week — start small and scale up.
Incentives & tips
USDA People's Garden and many municipal community-garden and composting programs support home food production.
Frost-free growing season : ≈ 329 days — Source: PVGIS, hourly ERA5 temperatures 2005–2015 (frost dates).
-
Solar energy39/100
~$587/yr
less electricity with 3 kWp on your roof (≈4,512 kWh/yr)
The detail
Realistic outlook
At 1,504 kWh/kWp per year, Jacksonville offers moderate potential for residential rooftop solar.
Watch-outs
Roof orientation, shading and local interconnection rules affect real output — get a site assessment first.
Incentives & tips
Federal Residential Clean Energy Credit (IRA §25D): 30% tax credit on solar PV and battery storage through 2032.
Annual PV yield : 1,504 kWh/kWp — Source: PVGIS 5.2 (EU Joint Research Centre), optimal tilt and local horizon.
-
Low-carbon heating90/100
~$282/yr
less heating after insulation + heat pump (−1,710 kWh/yr on 90 m², electric heating)
The detail
Realistic outlook
560 heating-degree-days: a high-efficiency heat pump is the lowest-carbon way to keep Jacksonville warm.
Watch-outs
A heat pump only pays off in a well-insulated envelope — insulate first, then size the unit.
Incentives & tips
Energy Efficient Home Improvement Credit (§25C): up to $2,000/yr for heat pumps plus credits for insulation; HEEHRA state rebates may stack.
Heating-degree-days (base 18°C) : ≈ 560 HDD — Source: PVGIS, hourly ERA5 temperatures 2005–2015 (base 18°C).
-
Rainwater89/100
~$200/yr
less mains water with a 5,000 L tank (≈109,310 L/yr harvestable from a 100 m² roof)
The detail
Realistic outlook
1,286 mm of rain a year makes rooftop rainwater harvesting highly productive in Jacksonville.
Watch-outs
Harvested rain is non-potable by default — keep it separate from drinking water and add a first-flush diverter.
Incentives & tips
Rainwater incentives vary by state — e.g. Texas sales-tax exemption on harvesting equipment, local rebates in Arizona. Check state and city programs.
Average annual rainfall : 1,286 mm — Source: NASA POWER, MERRA-2 corrected precipitation.
$1,965
Ranked by annual value. The order of the works themselves does not change: insulate before you equip.
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Estimate your solar system in Jacksonville
Estimate your solar system in Jacksonville
Based on a local yield of 1,504 kWh/kWp per year.
Indicative estimate (production = kWp × local yield). Real output depends on roof orientation, shading and your self-consumption rate.
Climate month by month in Jacksonville
In Jacksonville, a 3 kWp array pitched at 30° and facing 6° east of south — the optimum PVGIS computes for this location — produces about 4,512 kWh a year. April is the strongest month, at about 435 kWh, and December the weakest, at 318 kWh. November to February still bring 30% of the year's output, so the system stays useful all winter and a battery pays its way year-round.
The heating season runs from January to February: 2 months average below 59 °F (15 °C), and January is the coldest at 55 °F (12.7 °C). In a typical year the coldest hours drop to about 37 °F (3 °C), the point a heat pump has to be sized for: mild conditions, the easiest case for any heat pump.
Frost is practically absent from a typical year in Jacksonville, so the garden can produce in every season; the limits are summer heat and water, not cold. Expect about 96 days above 86 °F (30 °C): shade netting and mulch matter as much as frost protection, and the water tank is drawn hardest in August.
With a mean wind of 5 mph (2.3 m/s) at 10 m, a small rooftop turbine would produce little in Jacksonville; the roof is better used for solar. The southern horizon is open (at most 3.8°) in PVGIS's elevation model, so low winter sun reaches roofs unless nearby buildings block it.
Compared with Charlotte, 342 miles away, Jacksonville has 3% more solar yield, 91 more frost-free days and a heating need 67% lower. Compared with Nashville, 500 miles away, Jacksonville has 11% more solar yield, 91 more frost-free days and a heating need 71% lower.
| Month | Mean temperature | Solar output, 3 kWp |
|---|---|---|
| January | 55 °F (12.7 °C) | 345 kWh |
| February | 56 °F (13.6 °C) | 345 kWh |
| March | 62 °F (16.7 °C) | 426 kWh |
| April | 69 °F (20.6 °C) | 435 kWh |
| May | 75 °F (23.7 °C) | 432 kWh |
| June | 80 °F (26.5 °C) | 378 kWh |
| July | 81 °F (27.2 °C) | 387 kWh |
| August | 81 °F (27.3 °C) | 378 kWh |
| September | 78 °F (25.5 °C) | 345 kWh |
| October | 71 °F (21.6 °C) | 381 kWh |
| November | 63 °F (17.1 °C) | 339 kWh |
| December | 59 °F (15.0 °C) | 318 kWh |
Frequently asked questions — Jacksonville
How much could solar panels generate in Jacksonville?
A well-oriented 3 kWp rooftop array in Jacksonville produces about 4,512 kWh a year, worth roughly $587 in self-consumption. A 6 kWp system reaches about 9,024 kWh/yr where the roof allows. Federal Residential Clean Energy Credit (IRA §25D): 30% tax credit on solar PV and battery storage through 2032.
Is rainwater harvesting worth it in Jacksonville?
Yes. A 60 m² roof in Jacksonville can capture about 65,586 litres a year for the garden, WC and washing machine. Keep harvested rain separate from drinking water and fit a first-flush diverter. Rainwater incentives vary by state — e.g. Texas sales-tax exemption on harvesting equipment, local rebates in Arizona. Check state and city programs.
What grants help with low-carbon heating in Jacksonville?
Energy Efficient Home Improvement Credit (§25C): up to $2,000/yr for heat pumps plus credits for insulation; HEEHRA state rebates may stack. Insulate first — a heat pump only pays off in a well-insulated home (560 heating-degree-days here), so prioritise the roof and walls before sizing the unit.
How much food can a garden grow in Jacksonville?
With about 329 frost-free days, a 100 m² garden in Jacksonville yields roughly 320 kg of fresh fruit and vegetables a year — a partial share of a household's needs, not full calorie autonomy. USDA People's Garden and many municipal community-garden and composting programs support home food production.
When is the last frost in Jacksonville?
Frost is practically absent from a typical year in Jacksonville, so the garden can produce in every season; the limits are summer heat and water, not cold.
How much does solar produce in winter in Jacksonville?
December is the weakest month: a 3 kWp array makes about 318 kWh, against 435 kWh in April. November to February add up to 30% of the yearly total.
How this score is calculated
Public climate data (PVGIS with NREL's NSRDB radiation) weighted by how vital each dimension is. The score sharpens once you enter your own home. See the full methodology.
Sources
- Solar energy — Source: PVGIS 5.2 (EU Joint Research Centre), optimal tilt and local horizon.
- Rainwater — Source: NASA POWER, MERRA-2 corrected precipitation.
- Food growing — Source: PVGIS, hourly ERA5 temperatures 2005–2015 (frost dates).
- Low-carbon heating — Source: PVGIS, hourly ERA5 temperatures 2005–2015 (base 18°C).
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