The Ground Mount kits at a glance
This guide compares the Compact 460W and Duo 890W Ground Mount versions. UKSOL also has Hybrid Mount products, so check the full product name before comparing specifications.
| Feature | Compact 460W | Duo 890W |
|---|---|---|
| Solar panels | 1 × 460W | 2 × 445W |
| Combined rated panel capacity | 460W DC | 890W DC |
| Mount | Ground mount; not for balconies | Ground mount; not for balconies |
| Supplied AC connection cable | 4m | 4m |
| Ballast included? | No | No |
Sources: UKSOL Compact product page and UKSOL Duo product page. Both include a microinverter and mounting equipment; use the exact kit’s instructions to establish the required ballast and clearances.
Sources: UKSOL: Compact 460W Ground Mount kit · UKSOL: Duo 890W Ground Mount kit · UKSOL: Before you Buy
What do 460W and 890W mean?
These figures describe the panels’ rated direct-current capacity, not continuous electricity delivered to your home. The microinverter converts panel electricity for household use and limits the alternating-current output. UKSOL states an 800VA maximum for the microinverter: an 890W panel rating does not mean 890W goes into your socket. Read UKSOL’s explanation of the inverter limit.
Watts describe power at a moment in time; kilowatt-hours describe energy over a period. A kit’s headline wattage therefore cannot tell you its daily generation or annual bill saving. National Energy Action explains watts and kilowatt-hours.
Sources: UKSOL: Plug-In Solar FAQs · National Energy Action: understanding solar PV
Which fits the space you have?
UKSOL gives approximate installed dimensions of 1.76m wide × 1.00m deep for the Compact and 3.70m wide × 1.20m deep for the Duo. These are equipment footprints, not the whole area you must keep available. Add the access, cable and ballast clearances required by the latest Ground Mount instructions. See UKSOL’s installed-size guidance.
Mark out the proposed area before ordering. A larger kit should not leave you squeezing past panels or placing them in a more shaded corner simply to make them fit.
Sources: UKSOL: Before you Buy
Choose around your home, not the bigger number
The Compact is worth considering where the one-panel arrangement fits your available space. If both arrangements fit, compare the Duo’s extra panel capacity against its additional space and purchase cost. These are starting points for your decision, not a guarantee of suitability or savings.
Ask when your household uses electricity during daylight hours. Using generation as it happens helps reduce the electricity you need to buy; savings depend on your usage as well as the system. Energy Saving Trust explains this relationship.
Check Bright Socket’s current kit pages for price, availability, delivery, included equipment and warranty terms. Those details can change. If you are choosing between the two, complete the suitability checker and ask us about anything that remains unclear.
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