Who it is for
This page is for you if your electricity bill weighs on your budget, in a house, villa or business in Las Terrenas, and you want to know what solar can change. No system makes the bill disappear in every case, and savings are always an estimate. But understanding what makes up your bill helps you choose well.
How your electricity bill is made up
The bill from the distribution company (EDENorte in Samaná province) usually combines several elements. Check your own bill to see which ones apply to your contract:
- Energy consumed, in kWh. This is the part solar can reduce. Depending on the rate, the price per kWh may vary with your monthly consumption level.
- Fixed charges, paid even if you use little power. They do not disappear with solar panels.
- Other items depending on the type of contract, such as a demand charge in some commercial rates.
If you run a generator during outages, its fuel and maintenance are also part of what your electricity costs you.
The role of self-consumption
Self-consumption is the share of solar production that you use directly on site. It is what reduces your bill the most, because every kWh produced and used at home is a kWh you do not buy.
- An appliance that runs during the day, such as office air conditioning, a pool pump or a fridge, uses the panels' output directly.
- What you use at night comes from the grid, unless you have batteries that stored the day's energy.
- Surplus fed into the grid only has value if it is recognized on your bill, under the net metering rules in force, which must be checked with the utility.
Before installing, a few simple measures reduce consumption: LED lighting, inverter-type air conditioners, a pool pump scheduled during the day. The system you need is then smaller.
Two paths: hybrid or grid-tied without batteries
| Hybrid Comfort | Grid-tied, no battery | |
|---|---|---|
| Components | panels, hybrid inverter, batteries | panels, grid inverter |
| Investment | higher | lower |
| During an outage | keeps running, within battery capacity | shuts down |
| At night | uses energy stored in the batteries | everything comes from the grid |
| Suited to | houses and villas, evening use, disruptive outages | businesses and buildings occupied by day |
| Maintenance | panels, inverter and battery monitoring | panels and inverter |
In short: if you use most of your power during the day and outages are not a problem, grid-tied solar without batteries is the most direct route. If you use power in the evening and at night, or if outages affect you, a hybrid solar system is more suitable.
Benefits and limitations
Benefits
- You buy fewer kWh from the grid; the estimated reduction depends on your consumption and schedule.
- You depend less on changes in electricity rates.
- With batteries, you also gain continuity during outages.
Limitations
- Fixed charges remain, and the bill does not disappear.
- Actual savings depend on sunshine, shade, your habits and the rate: they are an estimate, not an assured result.
- The payback period can only be estimated case by case.
What we check during the technical visit
- Your recent bills, ideally covering a full year, to see seasonal variations.
- When you use power and your main appliances.
- The roof, its orientation and shade.
- The electrical panel, the meter and the type of connection.
- Your generator and its fuel consumption, if you have one.
For a first idea, the solar calculator gives an indicative estimate of savings; the method is explained in how we calculate.