Financial Analysis of 30.7 kW On Grid Rooftop PLTS in BLK Sukabumi Regency
Bibliographic record
Abstract
The use of solar energy as a solar power plant (PLTS) has increasingly developed and received attention in the last few decades. BLK Sukabumi Regency has a building roof that has the potential to be used as a rooftop PLTS, so it can reduce electricity bills. This research aims to financially analyze the integration of rooftop solar PV at the Sukabumi Regency Job Training Center (BLK). In this research, planning and design of a rooftop PLTS with a capacity of 30.7 kW was carried out using Canadian Solar 320 W solar panels and an ICA Solar 30 kW inverter. The analysis results show that the construction of this rooftop PLTS requires initial investment costs of IDR 300,000,000.00 with annual operational costs reaching IDR 35,278,070.00 and total operational and maintenance costs for 20 years reaching IDR 558,453,870.40. Apart from that, this project has a Net Present Cost (NPC) value of IDR 894,907,600.00 with a payback period of approximately 12 years. After integration with Rooftop PLTS, electricity tariffs succeeded in decreasing by around 30% from IDR 900/kWh to IDR 630.64/ kWh, with a reduction in energy costs from IDR 63,370,935.00/year to 30,615,359.59/year. Based on the results of this research, the relevant suggestions are: implementing a 30 kW rooftop PLTS in BLK Sukabumi Regency as a step towards more sustainable use of renewable energy; conduct further feasibility studies to find alternative components such as solar panels or inverters that are more economical without sacrificing system performance; and consider utilizing renewable energy in other locations on a larger scale, such as government buildings or large industries, to reduce dependence on fossil energy sources.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".