Typical year
8,159 kWhabout 680 kWh per month on averageSt Elizabeth solar guide
One of Jamaica’s strongest parish averages—but roofs still vary.
St Elizabeth has excellent modelled solar output, especially across the southern and western belts. That does not remove the need to check shade, heat, salt and wind at the property.
Local data guide · published 31 August 2026
Try a system size
What would that mean on a roof?
These figures estimate electricity from the panels, not money saved. A kWh is one unit of electricity on your bill; kW describes the panel system’s rated size. Your savings depend on when you use that electricity, whether you store it in a battery and whether you send any to JPS Jamaica.
Middle half of locations
7,959–8,320 kWhDifferences between locations; your roof can change the resultStrongest month
March · 747 kWhLong-term average, not a forecastWeakest month
February · 647 kWhAbout 13% below March
About 1,530About 1,780 kWh/kWp
The parish is not one number
The south and west lead. Northern uplands are more moderate.
The strongest cells run along much of the southern side of the parish, including the drier belt around Treasure Beach and toward the southwest. Output becomes more moderate inland and toward higher northern terrain.
Even here, the right system is set by the JPS Jamaica bill and daytime demand—not by filling every available square metre with panels.
- Cells analysed
- 1,422
- Central geographic range
- 1,592–1,664
- Typical variation
- About ±2%
Month by month
How does solar output change through the year?
March is strongest in the long-term model. February produces about 87% of that output, so the annual figure should not be treated as twelve identical months.
View the monthly figures as a table
| Month | Per installed kW | 5 kW system |
|---|---|---|
| January | 135.8 kWh | 679 kWh |
| February | 129.3 kWh | 647 kWh |
| March | 149.4 kWh | 747 kWh |
| April | 142.8 kWh | 714 kWh |
| May | 138.4 kWh | 692 kWh |
| June | 130.5 kWh | 653 kWh |
| July | 138.1 kWh | 690 kWh |
| August | 139.3 kWh | 696 kWh |
| September | 134.0 kWh | 670 kWh |
| October | 132.3 kWh | 661 kWh |
| November | 130.0 kWh | 650 kWh |
| December | 131.9 kWh | 660 kWh |
Before asking for quotes
Questions worth asking in St Elizabeth.
- Will salt reach the array?South-coast properties should ask for salt-mist-suitable modules, compatible rails and fasteners, sealed electrical equipment and clear warranty terms.
- Is agricultural dust or debris likely?Open and cultivated areas can soil modules. Preserve a safe cleaning route and avoid layouts that trap leaves at the lower frame edge.
- Can the roof tolerate exposed winds?A strong solar location can also be an exposed one. The proposal should identify attachment spacing and the structure carrying uplift loads.
- Is the array being oversized for export?High yield makes surplus more likely. Compare daytime self-use and the JPS Jamaica export credit before accepting the largest proposed system.
Use the Jamaica panel and roof guide to test the mounting and equipment answers in a quotation.
Generation is not the bill
A 5 kW system making 680 kWh a month will not automatically erase the same-sized bill.
Timing decides value
Solar used in the home avoids the retail cost of a JPS Jamaica unit. Surplus sent through net billing receives a much lower export credit.
A battery moves energy
A battery can carry daytime generation into evening use and provide outage cover, but it does not make the panels generate more.
Your roof changes the result
Shade, direction, heat, dirt, cable losses and equipment choices move a real installation away from the parish benchmark. Use the panel guide to test those roof assumptions.
How we calculated this
Where do these estimates come from?
We use long-term sunshine data to estimate panel output across the parish. These are planning averages, not a forecast for your roof. Shade, roof direction and equipment can change the result.
See the data, calculation and source assumptions
We selected the 1,422 Global Solar Atlas PVOUT grid cells whose centres fall inside the St Elizabeth parish boundary, then calculated the annual mean, central 50% range and monthly means.
The source models a free-standing crystalline-silicon system at optimum fixed tilt. It is useful for parish comparison and early planning, not a guarantee for a particular roof.
- Solar source
- Global Solar Atlas 2.0 PVOUT
- Source years
- 1999–2018 long-term average
- Spatial resolution
- 30 arc-seconds, approximately 1 km
- Calculation
- Jamaica Solar Check parish aggregation
Solar data obtained from Global Solar Atlas 2.0, developed and operated by Solargis on behalf of the World Bank Group with ESMAP funding. Source data © 2019 Solargis, CC BY 4.0. Parish calculations and colour map are adaptations by Jamaica Solar Check; the source organisations do not endorse this site. Boundary geometry: geoBoundaries JAM ADM1, sourced from OpenStreetMap/Wambacher, CC BY-SA 2.0.