Portable backup
Jackery 5000 Plus MVP: $2,635.
A refurbished Explorer 5000 Plus plus two 450W bifacial panels from Amazon. Sized for fridge, internet, radon, lights, and the well pump on critical-only loads. Solar numbers modeled for Tinicum, PA (ZIP 18947, ~40.5°N); load numbers come from 152 days of Emporia circuit data at the Barn. Jackery markets the 5000 Plus as a long-life LFP class unit, so cycle life is part of the value story here too.
Total cost
$2,635
$1,935 Jackery refurb + $699.99 Amazon panels.
Solar array
0.9 kW
2× 450W bifacial, 25% efficiency, ~48 sq ft.
Battery
5.04 kWh
~4.5 kWh usable LiFePO4, 7,200W output, long-cycle LFP class battery.
Summer day (avg)
~4.0 kWh
5.0 sun-hrs × 0.85 × 0.9 kW + bifacial gain.
Winter day (avg)
~1.7 kWh
2.0 sun-hrs × 0.85 × 0.9 kW, no bifacial gain.
Critical runtime
~17 hr
Battery alone, 300W load (radon+fridge+internet).
What the $2,635 buys you
A 2-panel test rig, not a bill-offset system.
The Jackery Direct eBay refurb Explorer 5000 Plus ($1,935) plus the 450W bifacial 2-pack from Amazon ($699.99) is the cheapest serious entry into the solar workflow at the Barn. The 2 panels are sized to refill the Jackery on a typical day; the Jackery's built-in 120V outlets cover the fridge, internet, radon, lights, and well pump during an outage. The trade-off is real: no Smart Transfer Switch, no whole-home backfeed, no HVAC. The full $33k EG4 staged system is the bill-offset play; this is the test rig that lets you prove out the workflow first.
Critical subtotal
~5.8 kWh/day
Radon 2.26 + fridge 2.14 + internet 0.30 + well 0.59 + lights 0.50 from 152 days of Emporia data.
Annual yield
~1,260 kWh/yr
0.9 kW × 3.5 PA avg sun-hrs × 0.85 × 365 + summer bifacial upside.
Outage budget
2-3 days
Clear-sky summer critical-only loads. Cloudy or winter: 1 day. Plan for grid restore beyond that.
Best use
Phase 0 testing
Prove the workflow at $2,635 before committing $30k+ to the staged EG4 system.
Seasonal generation (Tinicum, PA)
What the 2 panels actually produce.
NREL PA solar resource at ~40.5°N gives 3.5 average peak sun-hours/day annual. 900W × sun-hrs × 0.85 efficiency. Bifacial ground-mount gain (+10-15%) counted in summer only — snow cover and low sun angle cancel it in winter.
| Season | Sun-hrs/day | Best day | Avg day | Worst day |
|---|---|---|---|---|
| Summer (Jun-Aug) | 5.0-5.5 | 5.0 kWh | 4.0 kWh | 2.8 kWh |
| Spring / Fall | 3.5-4.0 | 3.6 kWh | 3.0 kWh | 2.0 kWh |
| Winter (Dec-Feb) | 2.0-2.5 | 2.3 kWh | 1.7 kWh | 1.0 kWh |
| Annual | 3.5 avg | ~1,260 kWh/yr |
Annual model: 0.9 kW × 4.1 avg PA sun-hrs × 0.85 × 365 ≈ 1,143 kWh baseline. Plan for 1,100-1,300 kWh/yr after summer bifacial gain and shoulder-season upsides. Worst winter days lose ~40% to snow cover and cloud.
Outage duration by season
How long the Jackery actually lasts.
Jackery 5,040 Wh (4,500 usable) ÷ net drain rate. Critical subtotal 5.79 kWh/day from Emporia. Net drain = (critical kWh/day − solar kWh/day) ÷ 24 hr. Runtime is hours from a full battery at that drain rate.
| Scenario | Solar/day | Net drain | Runtime |
|---|---|---|---|
| Summer, avg sun | 4.0 kWh | 75W | ~2.8 days |
| Summer, worst sun | 2.8 kWh | 125W | ~1.7 days |
| Spring / Fall, avg | 3.0 kWh | 116W | ~1.8 days |
| Winter, avg sun | 1.7 kWh | 171W | ~1.2 days |
| Winter, snow / cloudy | 1.0 kWh | 200W | ~1.0 day |
| No solar at all | 0 kWh | 240W | ~21 hr |
Drop the well pump and lights (no showering/cleaning) to drop the load to ~4.7 kWh/day. Summer surplus with reduced load: roughly break-even, Jackery holds overnight. Add a Jackery expansion battery to multiply the runtime table by 2x (10 kWh) or 4x (20 kWh).
Mounting angle
Use the same seasonal logic even on a portable-backed plan.
If you mount the 450W pair permanently, the same Tinicum rules still apply: flatter in summer, steeper in winter, and true south in all cases. The shared fixed-mount baseline is the IntegraRack IR-30 BallastRack at 30° with IR EarthScrews where ground mounting makes sense.
| Season | Recommended tilt | Why |
|---|---|---|
| Summer | 15°-25° | Sun is high, so flatter panels catch more light. |
| Winter | 55°-60° | Sun is low, so steeper panels face it better. |
| Year-round fixed | 30°-40° | A practical compromise if we do not want seasonal adjustments. |
What the Jackery actually runs (Emporia, 152 days)
Per-circuit fit at the Barn.
The "Yes" rows are the loads the Jackery carries indefinitely on a summer day and for ~14-17 hours on battery alone. The "No" rows are the loads that exceed the Jackery's output (heat pump, water heater, dryer) or its continuous 120V rating. Numbers come from Emporia 1-day circuit data (Jan 14–Jun 14, 2026) and 1-hour peak data.
| Circuit | kWh/day | Peak kW | Jackery? | Note |
|---|---|---|---|---|
| Radon fan | 2.26 | 0.49 | Yes | 24/7 essential; idle draw matches Jackery's 121W phantom baseline. |
| Kitchen outlets (fridge) | 2.14 | 1.66 | Yes | Mostly fridge compressor cycling; plug fridge into Jackery outlet. |
| Internet / router / phones | 0.30 | 0.05 | Yes | Estimated; not directly metered. |
| Well pump | 0.59 | 0.28 | Yes | Intermittent; Jackery handles the 280W draw. |
| LED lighting | 0.50 | 0.10 | Yes | Estimated; runtime scales with how many bulbs you run. |
| Critical subtotal | ~5.8 | ~2.6 | ~17 hr | The loads the Jackery was actually designed for. |
| Master bedroom | 5.23 | 1.76 | Partial | Likely includes a sub-panel; verify before plugging in. |
| Kitchen stove | 0.31 | 1.20 | Short bursts | Microwave/coffee ok; resistive burners will trip the 3,500W 120V limit. |
| Clothes dryer | 0.87 | 4.44 | No | 4.44 kW peak exceeds Jackery's continuous 120V output. |
| Water heater | 10.10 | 4.64 | No | 10 kWh/day would drain the Jackery in 1 hour. |
| Heat pump | 23.35 | 7.63 | No | 23 kWh/day = 3 days of Jackery capacity per day; not a fit. |
Phantom baseline from 1-min data: 121W median, 145W avg, 50W minimum. The Jackery's idle draw is closer to 50W; the 145W avg reflects fridge compressor + radon cycling when the house is "off".
Emporia per-circuit diagnostics
Single kit versus double kit.
One 900W panel pair is the simple refill path. Doubling to two pairs gives the Jackery much better daytime headroom and makes the critical-load stack easier to sustain.
| Build | Solar / day | Critical fit | Readout |
|---|---|---|---|
| 1 kit / 2 panels | ~1.3 kWh/day | Enough to slow discharge and stretch outage runtime. | Best portable starter. |
| 2 kits / 4 panels | ~2.6 kWh/day | Much better for holding the critical circuit set through daylight. | Better if the array becomes semi-permanent. |
Time to full charge (5,040 Wh)
Charge under load.
The Jackery advertises ~1 hour AC fast charge. From the 2-panel pair, charge time depends on what else is drawing. The break-even point is 765W of load: above that, the panels can't keep up and the battery drains.
| Source | Net power | Time to 100% |
|---|---|---|
| AC wall (Jackery fast charge) | ~4,000W | ~1.3 hr |
| Solar only, no load | 765W | ~6.6 hr |
| Solar + 145W phantom | 620W net | ~8.1 hr |
| Solar + 300W critical | 465W net | ~10.8 hr |
| Solar + 500W (+lights, laptop) | 265W net | ~19.0 hr |
| Solar + 765W (1:1) | 0W net | stalled |
| Solar + 1,000W | -235W | draining |
Solar assumes 5 peak sun-hours and 0.85 system efficiency. Add ~0.4-0.6 kWh/day in summer for bifacial ground-mount gain. Charge time to 80% is roughly 0.8× the numbers above.
Verdict
What the MVP does and doesn't do.
What it does well
2-3 day backup of fridge, internet, radon, lights, and well pump on critical-only loads. ~1,260 kWh/yr from the 2 panels — enough to refill the Jackery 200+ times per year. Hands-on test of charge-controller behavior, load management, and solar siting.
What it doesn't do
Bill offset, HVAC, water heating, dryer, kitchen stove on resistive burners. The Jackery 5,040 Wh battery is the bottleneck, not the panels. The 2 panels can produce ~1,260 kWh/yr; the battery stores 5,040 Wh at a time.
Best use case
Phase 0 of the solar roadmap. Prove the workflow at $2,635 before committing $30k+ to the staged EG4 system. Test solar siting, charge controller behavior, and load management in real conditions.
Other Jackery options
The MVP is the entry point — these are the alternatives.
Hardware prices checked June 14, 2026. Jackery bundle prices move, so treat this as a planning snapshot.
| Jackery path | Planning price | Nominal / usable | Selected-load runtime | HVAC runtime | Read |
|---|---|---|---|---|---|
| MVP: refurb + 900W Amazon panels | $2,635 | 5.04 / ~4.5 kWh | 2-3 days | — | Test rig, 2-3 day backup, no HVAC. Detailed above. |
| Refurb Explorer 5000 Plus + add-on Smart Transfer Switch | $2,934 | 5.04 / ~4.5 kWh | ~5 hours | ~2.4-3.1 hours | Best Jackery entry price; used/refurbished purchase risk; whole-home backfeed but no solar refill. |
| Explorer 5000 Plus + Smart Transfer Switch | $3,499 | 5.04 / ~4.5 kWh | ~5 hours | ~2.4-3.1 hours | Cleanest small automatic-circuit option, but small battery. |
| Explorer 5000 Plus 10kWh + Smart Transfer Switch | ~$5,199-$5,919 | 10.08 / ~9.1 kWh | ~10 hours | ~4.8-6.2 hours | Better outage appliance, still not meaningful HVAC duration. |
| Whole-Home Backup Kit 5000 Plus | $9,699 | 20.16 / ~18.1 kWh | ~20 hours | ~9.7-12.5 hours | Closest Jackery battery match, but now overlaps the broader DIY split-phase budget. |
Lower-cost Jackery path (no solar)
Refurbished 5000 Plus from Jackery Direct on eBay + add-on STS.
The Jackery Direct eBay refurbished Explorer 5000 Plus is listed at $1,935. Pairing it with the official Jackery Smart Transfer Switch add-on at $999 models at $2,934 before tax and installation. That saves about $565 versus the new $3,499 kit, but the eBay listing is used/refurbished with a shorter stated warranty and return terms, so it is a price play rather than the cleanest purchase path. The MVP at the top of this page trades the STS for a 0.9 kW refillable array at $2,635.
Solar input model
Callsun kits and the 450W Amazon pair — refill scenarios.
The MVP uses the 450W bifacial 2-pack from Amazon (0.9 kW, $699.99, Amazon's Choice, 25% efficiency). Jackery advertises up to 4,000W solar input on the Explorer 5000 Plus, so the array is well under the ceiling. For a larger mounted array, the same seasonal-rack logic applies if we ever expand beyond the test pair. The final string plan still needs voltage/current verification across the high-PV and low-PV inputs before scaling up.
| Array | Panel cost | Panel face | Avg solar/day | Base Jackery refill | Read |
|---|---|---|---|---|---|
| MVP: 0.9 kW (Amazon 450W pair) | $699.99 | ~48 sq ft | ~1.7-4.0 kWh/day seasonal | ~1.2-3.0 days | Cheapest refill option; the MVP rig. |
| 2 kits / 4 panels / 1.8 kW (Callsun 450W) | $1,399.98 | ~96 sq ft | ~3.4-8.0 kWh/day seasonal | ~0.6-1.5 days | Significant improvement over the MVP if the array becomes semi-permanent. |
| 4 kits / 8 panels / 3.6 kW | $2,799.96 | ~192 sq ft | ~6.8-16.0 kWh/day seasonal | Same-day refill on average days | Good minimum fixed array for keeping the Jackery useful during a daytime outage. |
| 6 kits / 12 panels / 5.4 kW | $4,199.94 | ~288 sq ft | Above Jackery input target | Not recommended | Past the practical Jackery target; wiring, input limits, and permits become the main question. |
Refill estimates use the seasonal model above: the MVP's 0.9 kW pair produces roughly 1.7 kWh/day in winter and 4.0 kWh/day in summer. A 2-kit Callsun array roughly doubles that and is the first upgrade that feels materially better than the MVP. Final string design still needs voltage/current checks against the Jackery inputs.
Against your 120V usage
The Jackery base kit is convenient, but it is a short-duration selected-load battery: roughly 4.5 kWh usable against a 22 kWh/day target. That is enough to smooth a short outage, keep network/fridge/lights alive for part of a day, and avoid custom battery wiring. It is not comparable to the 16 kWh DIY battery model for runtime.
Against your HVAC
Output should be capable of the recent observed HVAC draw class because Jackery lists 7,200W output and 120/240V support. The battery is the problem: the recent HVAC data showed about 34.9-45.1 kWh/day, so one 5 kWh-class Jackery only models at about 2.4-3.1 HVAC hours. Include the HVAC circuit only after electrician review of the 45A breaker, transfer switch limits, and startup behavior.
Peak shedding / utility rewards
Do not count this until the utility is confirmed.
ZIP 18947 is in Bucks County, Pennsylvania, so Jersey Central Power & Light is not the default assumption. Tinicum Township points residents to Met-Ed for electric concerns, and Bucks County also has PECO and PPL territory. Check the actual utility name on the bill before modeling incentives.
| Utility case | Available peak shedding | Planning value |
|---|---|---|
| If bill is JCP&L | Energy Savings Rewards for eligible smart thermostats connected to central cooling. Events run during summer peak periods; thermostat adjustments can be up to about 4°F and typically under 4 hours. | $75 enrollment incentive per thermostat, with published program summaries showing $25 per device per year afterward. |
| If bill is Met-Ed / PECO / PPL | Needs utility-specific confirmation. The practical action is still local peak shedding: pre-cool/pre-heat, avoid dryer/water-heater overlap, and let Jackery carry critical circuits during short peak windows. | Do not assign a dollar credit until the bill utility and enrolled rate/program are known. |
| Jackery role | Useful for manual load shifting and short backup windows. It does not automatically create utility demand-response revenue unless a program explicitly pays for batteries or controllable load. | Comfort/resilience value first; bill savings are secondary unless paired with TOU pricing or a confirmed incentive. |
Install notes
What this does and does not solve.
Treat this as a blueprint for an electrician conversation. It is not a finished permitted design. The practical next step is choosing the exact backed-up circuits around the 5 kWh-class Jackery output and deciding whether to start with the new or refurbished inverter, and whether to add the Smart Transfer Switch or the 2-panel solar array.
Electrician checklist
Confirm the selected-load panel, inverter certification, battery communication, disconnects, fusing, conductor sizing, grounding, labeling, battery location, permits, and warranty support before treating this as purchase-ready.
Sources
- Jackery Explorer 5000 Plus for the 5.04 kWh capacity, 7,200W output, 120/240V support, and current planning prices.
- Jackery Direct eBay refurbished Explorer 5000 Plus listing for the $1,935 used/refurbished option, quantity, seller, warranty note, and return terms.
- Amazon 450W bifacial 2-pack (Callsun Store) for the $699.99 coupon price, N-Type 16BB / 25% efficiency / anti-shade dual-module specs, and 4.8-star sample size.
- Callsun 450W 2-pack manual reference for the listed panel dimensions used in the area estimate.
- IntegraRack IR-30 BallastRack and IR EarthScrews 10-pack for the shared fixed-mount baseline.
- Emporia Barn 1-day circuit CSV (152 days) for measured per-circuit daily kWh averages, heat-pump share, and critical-load subtotal used in the Jackery capability section.
- Emporia Barn 1-hour circuit CSV for measured hourly peak kW per circuit (heat-pump 7.63 kW, water-heater 4.64 kW, dryer 4.44 kW).
- Emporia Barn 1-minute circuit CSV for the 121W median / 145W avg / 50W minimum phantom-load baseline used in the charge-under-load math.
- JCP&L Energy Savings Rewards for the current smart-thermostat demand-response enrollment incentive.
- JCP&L Energy Savings Rewards FAQ for eligibility, summer event season, and thermostat-adjustment behavior.
- Sustainable Jersey utility demand response summary for the $75 enrollment and $25 annual JCP&L device incentive snapshot.
- Tinicum Township community contacts for the local Met-Ed electric concern listing.
- TubeTested 2026 Will Prowse approved products index for the referenced 2026 affiliate-list context.