Solar and backup power for a Jamaican home

Weeks without grid power after Melissa turned solar and battery backup from a nice-to-have into part of rebuilding. Jamaica's rules split into three parts: who may do the electrical work, what is needed to sell power back to JPS, and what tax relief applies. JPS's own website blocks automated reading, so this guide relies on the Ministry of Science, Energy, Telecommunications and Transport (MSET), the Government Electrical Regulator (GER), the Office of Utilities Regulation (OUR) and Tax Administration Jamaica (TAJ).

Backup only, or grid-tied?

A battery-and-inverter system that keeps your fridge and lights on during outages, with or without panels, does not sell anything to JPS and needs no net billing licence. A grid-tied system that exports surplus does. The MSET instruction sheet limits net billing to self-generators using renewable sources only, with system capacity not exceeding 10 kW for residential and 100 kW for commercial customers, who must be current JPS customers in good standing. Decide this first; it changes the paperwork and the design.

Who can do the work

The GER administers the Electricity Act 2015 and the 2020 electrical work regulations. Its rule is short: all electrical work requires the engagement of an electrician. For work where the main cable is below 70 amperes, typical of a house, the GER says the work shall be certified by an electrical engineer registered under the Professional Engineers Registration Act or by a registered electrician before commencement. At 70 amperes and above you need a professional electrical engineer and the approval of a licensed inspector. The GER publishes registries of registered electricians by category and licensed inspectors by class; JaRanks' electricians listings are drawn from them and link to the source. MSET's older GEI page makes the same point, noting that the growth of solar has made licensed electricians indispensable.

Before the system is switched on, a licensed electrical inspector must assess the work to ensure it complies with the specification and is ready to be energised, then issue a compliance certificate. Keep it; JPS and your insurer will want it.

Net billing step by step

1. Apply to the Ministry for a net billing licence. The MSET sheet requires a single-line diagram showing the status and registration number of the licensed electrician or registered professional engineer (electrical), among other documents.
2. Pay the fees. The sheet lists a non-refundable processing fee of J$19,000 and an application fee of J$1,800 per kW of excess electricity the system is permitted to supply. Successful applicants pay a further licence fee under section 9(5)(a)(i) of the Electricity Act.
3. Wait for JPS's contract. JIS reported when the regulations were introduced that JPS has 30 days from receiving the licence to issue a standard offer contract, that the applicant gets a 60-day window for extra documents, and that the licence is valid for ten years.
4. Get paid the net billing rate. The OUR's public notice states the net billing energy rate satisfies the principle of the short-term variable avoided cost of generation plus a premium of fifteen percent for renewable energy generation, applying to facilities from 0 to 100 kW. The December 2024 rate was J$21.289 per kWh; June and July 2025 were J$19.171 and J$19.979. It moves with fuel prices and is below the retail tariff, so size the system for your own use first and treat exports as a bonus.

Tax relief in 2026

Three things are true at once:

• GCT. TAJ's list of exempt goods includes photosensitive semiconductor devices including photovoltaic cells, solar cells designed to produce electricity from the sun, photovoltaic panels, charge controllers, inverters, photovoltaic batteries and LED bulbs and lighting. JIS reported in July 2024 that lithium-ion batteries are included in the exemption.
• Income tax credit. JIS reported Senate approval of a credit of 30 percent of the acquisition and installation cost of a residential solar photovoltaic system, capped at J$1.2 million, for systems acquired and installed on or after 1 January 2023.
• Customs duty. The Melissa-era exemption that covered solar panels, batteries and inverters ended with a hard stop on 15 January 2026 per the Ministry of Finance. Standard duty applies again; ask your supplier or a broker for the current rate, which we could not find on an official page.

Buying sensibly

• Ask the installer for the electrician's GER registration number and check it.
• Get the inspector's compliance certificate before final payment.
• Insist on a written warranty for panels, inverter and batteries, and find out who honours it in Jamaica.
• If you are funding from abroad, tie payments to delivery, installation and the compliance certificate.

What JaRanks cannot do

JaRanks cannot design your system, confirm JPS will approve a net billing application, or calculate your tax credit. Fees and rates are quoted from MSET, OUR and TAJ documents on the review date; JPS's own pages could not be read and may carry newer procedures.