Your electricity data. One clear solar decision.
GreenInvest Pakistan is a consumer solar calculator and decision-support system for Pakistan. It turns electricity use, current and desired bills, budget, roof space and backup needs into a practical recommendation for solar PV, battery storage and inverter capacity.
Residential · Commercial · Industrial · Solar sizing · Battery backup · Electricity-bill forecasting · Installer quote checks · Financial risk
Open the live calculator · Download for Windows · View project impact
GreenInvest is designed around the questions people actually need answered before speaking to an installer or committing capital.
| Your question | What GreenInvest provides |
|---|---|
| Should I install solar? | An install, conditional or do-not-install screening outcome with the reasons made visible. |
| What should I install? | Solar, inverter and battery capacities, plus alternatives worth comparing. |
| What could it cost? | A complete screened system estimate checked against the entered budget and roof limits. |
| What could my bill become? | Seasonal energy and monthly bill projections, including the bill target and remaining grid charges. |
| What could change the answer? | Constraint checks, risks, sensitivity analysis, Monte Carlo uncertainty and evidence requirements. |
| Build my recommendation | Check an installer quote |
|---|---|
| Start with electricity use, bill goals, budget, roof availability and backup needs. | Enter the proposed solar, battery, inverter and price details from a quotation. |
| Receive a screened configuration and alternatives fitted to the stated constraints. | See whether the proposal fits the entered demand, bill target, backup requirement and budget. |
| Best when you are deciding what to request from the market. | Best when you already have a proposal and want a structured second look. |
GreenInvest scales with the decision. Household recommendations retain their fine-grained small-system search, while commercial and industrial screening can evaluate projects through 4 MW of solar, 100 MWh of storage and 6 MW of continuous battery-inverter capacity. Large-project costs use explicit procurement anchors and restrained volume savings rather than applying one household price indefinitely.
- The verdict — a clear outcome and the decisive reasons behind it.
- The plan — selected and alternative solar, inverter and battery sizes.
- Bills and energy — seasonal consumption, production and estimated monthly grid bills.
- Battery and backup — protected-load, outage-duration and storage-capacity checks.
- Risk and uncertainty — named constraints, sensitivity analysis and on-demand Monte Carlo results.
- Evidence and downloads — reports, plan data, configuration, evidence and CSV exports that can be reviewed outside the application.
See battery, comparison and mobile product views
GreenInvest 4.5.0 applies a 2026 LESCO reference schedule selected from the consumer's connection type and connected load. Residential calculations use nine consumption bands; commercial and industrial calculations use their own regular or time-of-use rates and per-kW fixed charges. The calculator does not offer an agricultural category.
The final payable bill can also include taxes, fuel and quarterly adjustments, duties, surcharges, television fees, arrears, minimum charges and other utility-specific items. GreenInvest therefore shows these as additional bill items and asks consumers to compare the selected category and rates with a recent electricity bill. It also models seasonal demand rather than pretending the same electricity use occurs every month.
Review the current consumer tariff reference
The result keeps the assumptions visible so it can support a better installer conversation—not replace the professional checks that happen before purchase.
Open greeninvest-pakistan.vercel.app on a phone, tablet or computer. No installation is required.
- Download the latest Windows ZIP.
- Right-click it and select Extract All.
- Open the extracted folder and run
GreenInvest.exe.
The package includes the calculation engine, Python 3.13 and Qt WebEngine. It does not require Python, Node.js, Vercel, a separate browser or a traditional installer. It supports 64-bit Windows 10 and 11 and uses approximately 400 MiB after extraction. Calculations continue to work offline.
Windows notice: the current preview is not code-signed, so SmartScreen may ask for confirmation on first launch. Download only from the official release page and verify the SHA-256 checksum using the release guide.
GreenInvest does not ask for a name, email address, electricity account number or home address to produce a recommendation. The official Windows application calculates locally. The hosted calculator sends the submitted configuration to the GreenInvest calculation service only when an analysis is requested.
Minimal anonymous project events may support aggregate impact reporting. Optional feedback is sent only after permission is selected and the feedback is submitted. Individual comments never appear on the public impact page.
GreenInvest is independent screening and decision support. It is not an installer quotation, final electrical or structural design, financing offer, warranty, tax calculation or guarantee of savings.
Before spending money, ask qualified local professionals to verify the roof, shading, structure, wiring, protection, earthing, equipment compatibility, warranties, utility treatment and complete payable bill.
| Resource | Official location |
|---|---|
| Current release | GreenInvest Pakistan 4.5.0 |
| Consumer tariff reference | 2026 residential, commercial, and industrial schedule |
| Windows verification | Installation and SHA-256 instructions |
| Product support | Support guide |
| Product issue | Open a structured issue |
| Sensitive security report | Private vulnerability reporting |
| Privacy | Privacy summary |
Do not attach electricity bills, addresses, account numbers, private quotations, saved plans, access tokens or other personal information to a public GitHub issue.
- Pakistan Energy Simulator — utility-scale solar, wind and wave resource modelling, project economics and uncertainty analysis.
- Muhammad Bin Asad's portfolio — product background, project context and selected engineering work.
GreenInvest Pakistan is independently owned. This public repository provides official documentation and compiled releases; it does not publish the proprietary calculation model, ranking rules, pricing catalogue, private data or internal operating tools. Use of the compiled application is governed by the GreenInvest Pakistan use and distribution notice. Bundled open-source components retain their respective licences and recipient rights, documented in third-party notices.
GreenInvest Pakistan
Clear solar decisions, with the assumptions left visible.