Picking the best solar design software in Malaysia for 2026 is less about drawing pretty roofs and more about encoding a scheme structure that changes the answer three ways on the same building. Under NEM 3.0 a residential customer on NEM Rakyat offsets exported units one to one, a factory on NOVA gets exports credited at a displaced cost rate rather than the retail tariff, and a site on SELCO does not export at all and lives entirely on self-consumption. Layer on Suruhanjaya Tenaga’s requirements for registered electrical contractors and competent persons, TNB’s interconnection process in the Peninsular, a completely separate regime in Sarawak, MS IEC standards, GITA and GITE tax incentives, and a climate with heavy monsoon cloud and among the highest lightning densities on earth, and the imported design template starts to creak. The platform that wins our 2026 bench test is SurgePV, an all-in-one cloud suite at US$1,299 per user per year on the 5-User Team plan, about MYR 5,720 at MYR 4.40 to the US dollar. It does not win on price: OpenSolar’s core platform is free, five PVsyst licences cost CHF 3,500 and five PV*SOL premium seats cost EUR 4,225 plus VAT, all of which undercut five SurgePV seats. Ten platforms are ranked below in each vendor’s own billing currency with approximate ringgit alongside, and with honest limitations on each, ours included. You can compare SurgePV pricing before you speak to anyone.
Direct answer. The best solar design software in Malaysia for 2026 is SurgePV, at US$1,299 per user per year on the 5-User Team plan (US$6,495 for five seats, about MYR 5,720 and MYR 28,600 at MYR 4.40 to the US dollar). It models NEM 3.0 as three separate settlement mechanisms rather than one, handles high diffuse fraction under monsoon cloud, carries tropical soiling and humidity losses, produces a single-line diagram a competent person will sign, and generates ringgit proposals with GITA modelled on every plan.
This guide is written for Malaysian solar contractors, EPC firms, consulting engineers and in-house design teams, particularly those working commercial and industrial rooftops across the Klang Valley, Penang, Johor, Melaka and the Iskandar corridor, plus teams operating in Sabah and Sarawak where the rules diverge. Every platform is scored on four axes: Malaysian regulatory depth, tropical and equatorial engineering, workflow coverage from address to signed proposal, and total cost of ownership in ringgit for a five-person team.
The Malaysian Regulatory Stack Your Software Must Encode
Five layers. Miss any one and your team finishes every project in a spreadsheet.
Suruhanjaya Tenaga, the Energy Commission. Electrical installation work in Malaysia sits under the Electricity Supply Act 1990 and the Electricity Regulations 1994, administered by Suruhanjaya Tenaga. Practically that means the installation is carried out by a registered electrical contractor, supervised by a competent person of the appropriate grade for the installation’s voltage and capacity, and the installation is registered and approved rather than simply connected. Your design tool does not hold a competency ticket. What it must do is produce a drawing set and equipment schedule complete enough that the competent person signs it instead of redrawing it, which is where imported single-line diagram templates lose you a day per project.
NEM 3.0 is three schemes, not one. This is the single largest modelling trap in the Malaysian market. NEM Rakyat, aimed at residential consumers, offsets exported units against imported units on a one to one basis, which makes the export unit worth the retail tariff. NEM NOVA, the Net Offset Virtual Aggregation mechanism for commercial and industrial consumers, credits exports at a displaced cost rate that is materially below the retail tariff, and it allows offsetting across multiple accounts held by the same entity, which is a genuinely useful design lever for a group with several premises. NEM GoMEn covers government ministries and agencies. Alongside these sits SELCO, the self-consumption pathway, where the system is designed with export limiting and there is no export credit at all. Quota availability across these programmes has moved repeatedly since 2024, so confirm the current position with SEDA and TNB before it goes into a proposal. A tool that models one generic “Malaysia net metering” rate will misprice at least two of these four cases.
TNB interconnection. In Peninsular Malaysia, Tenaga Nasional Berhad handles the connection application, the technical review, the export limiting requirement where applicable and the meter change. Larger commercial connections trigger a more detailed study and, above certain thresholds, protection and metering requirements that drive real cost into the bill of quantities. The software that helps here is the one producing a clean protection and metering scheme on the single-line diagram, not the one with the nicest 3D render.
Sarawak and Sabah are different countries for this purpose. Suruhanjaya Tenaga’s jurisdiction covers Peninsular Malaysia and Sabah and Labuan. Sarawak regulates its own electricity supply industry under state law, with Sarawak Energy as the utility, and its own net energy metering and self-consumption arrangements that do not simply mirror the Peninsular scheme. Sabah, served by Sabah Electricity, has its own grid characteristics, weaker interconnection in parts of the state and different queue realities. A design approved for a Shah Alam warehouse cannot be resubmitted unchanged for a Kuching one.
Standards. Malaysia adopts the IEC series as MS IEC standards. The ones that show up on a rooftop project are MS IEC 61215 and MS IEC 61730 for module qualification and safety, MS IEC 62109 for inverters, MS IEC 62548 for PV array design, MS 1837 for the installation of grid-connected PV systems, and MS IEC 62305 for lightning protection. Your component database should let you filter for these, and your drawing set should reference them.
📘 Regulation note
Per Suruhanjaya Tenaga and SEDA Malaysia, grid-connected PV installations require a registered electrical contractor and a competent person of the appropriate grade, and net energy metering is administered as distinct programmes with different settlement rates. Quota positions under NEM 3.0 and the SELCO pathway have changed more than once since 2024, so verify the live programme status and the applicable rate before issuing a customer proposal.
Bring one of your own sites to a free SurgePV demo. We will build the 3D roof from a satellite address, run the 8,760-hour shading simulation, and hand you the SLD, BOQ and branded proposal on the call.
Book a free SurgePV demo → Compare pricingMonsoon Cloud, Diffuse Light and Lightning Change the Physics
Malaysian irradiance sits in a narrow band, roughly 4.5 to 5.2 kWh per square metre per day across most of the country, and that stability hides the two things that actually decide accuracy.
Diffuse fraction is high. Under equatorial convective cloud, a large share of the annual resource arrives as diffuse rather than direct beam radiation. The northeast monsoon from November to March hits the east coast of the Peninsular, Sabah and Sarawak hardest, while the southwest monsoon from May to September brings a drier but still cloudy pattern to the west. Two consequences. First, the transposition model that converts horizontal irradiance to plane of array matters more here than in a clear-sky market, and a tool using a simple isotropic assumption will misread a tilt and azimuth study. Second, tilt optimisation is a weak lever: at low latitude with high diffuse fraction, the yield difference between 10 and 15 degrees is small, and the real decision is drainage, self-cleaning and wind uplift rather than a fractional yield gain.
Low tilt means soiling does not self-clean. Because roofs are near flat and tilts are shallow, rain does not shed dirt the way it does on a 30 degree European array. Malaysian soiling loss is generally lower than the Gulf or South Asia, commonly 2 to 5 percent annually, but sites near palm oil mills, cement works, highways or the seasonal haze that drifts across the region run higher, and biological growth in permanent humidity is a real mechanism that dry-climate models do not represent at all.
Humidity, heat and corrosion. Ambient sits in the low thirties Celsius with relative humidity above 80 percent for most of the year. Cell temperatures pass 60 Celsius on a close-mounted array, and at a typical temperature coefficient near minus 0.34 percent per degree that is a persistent rather than seasonal loss. Permanent humidity also argues for higher IP-rated enclosures, marine grade fixings near the coast, and serious attention to potential induced degradation and to junction box and connector quality, because water ingress in this climate is a when rather than an if.
Lightning is a design constraint. Malaysia records among the highest lightning flash densities in the world, with parts of the Klang Valley experiencing thunderstorm activity on the majority of days in the year. MS IEC 62305 risk assessment, an air termination and down conductor scheme that coordinates with the array, correctly rated surge protective devices on both DC and AC sides, and equipotential bonding are not optional extras. Most design software does not model any of this. What the better tools do is give you a place to specify the SPD and bonding scheme on the single-line diagram so it lands in the bill of quantities rather than being remembered on site.
Want a second opinion on a Malaysian rooftop? Send us the roof plan, the load profile and the intended NEM programme and our engineers will sanity-check the sizing and the export assumption. Talk to our engineering team or run a first-pass estimate with our solar calculator.
GITA, GITE and Why the Financial Model Sells the Job
In Malaysia the design conversation and the tax conversation are the same conversation, and design software that cannot carry the second one hands the close to whoever can.
The Green Investment Tax Allowance, administered through MIDA with the qualifying asset list maintained by MGTC, allows a company investing in qualifying green assets to claim an allowance on qualifying capital expenditure, set against a defined proportion of statutory income, with unutilised allowance carried forward. The Green Income Tax Exemption serves qualifying green service providers on a similar principle. The mechanics, the qualifying rates and the application window have been revised at successive budgets, so treat the specific percentages as something to confirm with the current MIDA guidance rather than something to hard-code.
The design implication is straightforward. For a Johor manufacturer, the after-tax payback on a self-consumption array with GITA claimed can differ from the pre-tax payback by more than a year. If your proposal shows only the simple payback, you are underselling the project to the exact person who signs the cheque, the finance director. Software that lets you model corporate tax position, allowance treatment and the NOVA displaced cost export rate in the same cash flow produces a proposal a Malaysian CFO can act on. Software that gives you a generic savings chart produces a document that gets forwarded and never returned.
💡 Fast tip
Ask any vendor to model one real C&I case for you during the trial: NOVA export rate, GITA claimed, export limiting active. If the tool needs a spreadsheet to do it, that spreadsheet is your permanent workflow.
The 4-Point Malaysia Bench Test
This is the framework we use before deploying any platform on our own solar EPC work. Each tool scores 1 to 10 across four axes, out of 40, and we do not deploy below 32.
- Malaysian regulatory depth. NEM Rakyat, NOVA and SELCO modelled as separate settlement mechanisms, export limiting as a first-class design option, TNB-ready single-line diagram with protection and metering, MS IEC referencing, and awareness that Sarawak is not the Peninsular.
- Tropical and equatorial engineering. A transposition model that handles high diffuse fraction, hourly monsoon weather files, humidity and high-ambient derating, low-tilt soiling behaviour, and a place to specify surge protection and bonding per MS IEC 62305.
- Workflow coverage. Address to shading study to single-line diagram to BOQ to ringgit-denominated proposal in one licence, with DXF or DWG export for the consulting engineer and the competent person.
- Total cost of ownership in MYR. Seat licence plus add-ons plus onboarding, per finished project, across a five-person team.
Scores: SurgePV 35, HelioScope 31, PVsyst 32, Aurora 28, PVSOL premium 30, OpenSolar 30, PVcase 27, RatedPower 25, Huawei FusionSolar Design 22, SolarEdge Designer 21. PVsyst, PVSOL and OpenSolar all score above SurgePV on the cost axis, because CHF 700 a year, EUR 845 a year and a free core platform each cost less than a US$1,299 seat. Huawei drops a point because it publishes no price or plan table at all, so a Malaysian team cannot budget for it in advance. No platform scores full marks on axis one, because none of them ships a native TNB application pack or a Sarawak Energy variant. That gap is real and it is where your team still does manual work.
Top 10 Solar Design Software in Malaysia Compared
Pricing is 2026 and quoted in each vendor’s own billing currency, with ringgit conversions at approximately MYR 4.40 per United States dollar where they help. No vendor on this list bills in ringgit, so every converted figure moves with the exchange rate.
| # | Platform | Price (vendor currency) | Key capability | Best for |
|---|---|---|---|---|
| 1 | SurgePV | US$1,299/user/yr, 5-User Team (about MYR 5,720) | All-in-one design, 8,760-hr simulation, SLD, BOQ, proposals | Contractors and EPCs doing 5+ projects a month |
| 2 | HelioScope | US$159/mo Basic (US$1,620/yr), US$259 Pro (US$2,640/yr) | Bankable C&I yield simulation | Consultancies on 500 kW to 5 MW rooftops |
| 3 | PVsyst | CHF 700/user/yr Professional | Reference-grade simulation physics | Lender due diligence, LSS and CGPP bids |
| 4 | Aurora Solar | US$135/user/mo Basic, US$220 Premium, billed annually | Deepest residential design and sales workflow | Residential-led operations with scale |
| 5 | PV*SOL premium | EUR 845/named user/yr + VAT | Detailed 3D shading and hybrid storage | Consultancies wanting simulation depth |
| 6 | OpenSolar | Core platform free; API Access and Connectors chargeable from 16 Apr 2026, rates not published | Free residential design tier | Solo installers and new entrants |
| 7 | PVcase | Not publicly listed, quote only | Terrain-aware ground-mount layout in CAD | LSS and ground-mount developers |
| 8 | RatedPower | Not publicly listed, quote only | Automated utility-scale plant engineering | 30 MW+ LSS developers |
| 9 | Huawei FusionSolar Design | Not publicly listed | Fast string design for Huawei hardware | Teams standardised on Huawei inverters |
| 10 | SolarEdge Designer | Free | Free string design for SolarEdge hardware | Shaded urban roofs on SolarEdge kit |
Two readings worth taking. Positions 1, 2 and 4 are the full-workflow contenders and they are the only three that produce something a customer sees. PVsyst at three is a fit ranking rather than a quality ranking, because its physics is the most trusted on this list and it generates none of the proposal or drafting workflow a Malaysian contractor needs, but Malaysia’s Large Scale Solar and Corporate Green Power Programme tender activity means more teams here genuinely need it than in a purely rooftop market.
1. SurgePV
What it does best. One licence covers the whole motion: satellite address to AI-generated 3D roof, 8,760-hour module-level shading, string sizing, single-line diagram, bill of quantities, ringgit financial model and branded proposal. Three things matter for Malaysia specifically. The settlement engine treats NEM Rakyat one to one offsetting, NOVA displaced cost export and SELCO self-consumption with export limiting as three distinct cases rather than one country rate, which is where most imported proposal templates get the C&I number wrong. The financial model carries corporate tax treatment so a GITA claim can be shown in the cash flow rather than mentioned in a footnote. And the weather handling uses hourly equatorial files with a transposition model appropriate to a high diffuse fraction, so the tilt study is not quietly borrowed from a clear-sky assumption.
Pricing. US$1,299 per user per year on the 5-User Team plan, so US$6,495 for five seats, about MYR 5,720 per seat and MYR 28,600 for five. Individual seats are US$1,899 a year, about MYR 8,360. Enterprise is quoted. Free trial, no credit card. Stated plainly: an Aurora Basic seat at US$1,620 a year is cheaper than a SurgePV Individual seat, five PVsyst licences at CHF 3,500 cost less than five SurgePV seats, and OpenSolar’s core platform costs nothing.
Who it suits. Malaysian contractors and EPCs doing five or more designs a month, teams bidding C&I rooftops alongside residential, and anyone currently paying per-seat monthly pricing plus a second licence for proposals.
Honest limitations. Four, stated plainly. First, there is no native TNB application pack and no Sarawak Energy variant, so utility submissions stay manual, and the Sarawak divergence in particular is handled by you rather than by the software. Second, it does not model lightning protection or surge coordination to MS IEC 62305. You get a place to specify the scheme in the drawing set and the BOQ, which is more than most tools offer, but the risk assessment is still an engineer’s job. Third, brand recognition in Malaysia is low because the product launched in 2025, so a bank or a Japanese or Singaporean parent company reviewing the yield report will want a conversation, and for a large LSS bid that names PVsyst in the document list you will run PVsyst anyway. Fourth, terrain-driven ground-mount layout is not at PVcase’s standard, which matters on hilly or oil palm converted land.
Book a SurgePV demo with one of your own Malaysian sites so you can test the NOVA export rate and the GITA treatment against a real TNB bill.
2. HelioScope
What it does best. Commercial and industrial yield simulation that Malaysian banks and independent engineers accept without argument. Module-level 8,760-hour modelling with a transparent and editable loss tree, which is exactly what a 2 MW Senai factory roof needs to reach financial close, and the editable loss tree lets you put a realistic tropical soiling and humidity figure in rather than fighting a default.
Pricing. US$159 a month on Basic (US$1,620 a year) and US$259 on Pro (US$2,640 a year), each covering one user and 10 projects a month, with DC design caps of 1.25 MW and 5 MW. Five Basic seats come to US$8,100 a year, about MYR 35,600. HelioScope is Aurora-owned.
Who it suits. Engineering consultancies and C&I-only teams whose deliverable is a yield report.
Honest limitations. No proposal tooling worth the name, no AI 3D roof, no NEM settlement logic of any kind, no GITA modelling and no storage dispatch. You will licence a second tool for anything the customer sees. Our HelioScope alternative guide covers the tradeoff.
3. PVsyst
What it does best. The reference simulation engine. When a lender funding a Large Scale Solar plant or a Corporate Green Power Programme offtake wants an independent yield opinion, the PVsyst loss diagram is what they ask for. Its transposition options, monthly soiling table and thermal loss handling are transparent and adjustable, which is exactly what you want in a market where every shipped default was tuned somewhere else.
Pricing. CHF 700 per user per year for the Professional annual subscription, so CHF 3,500 for five licences before the 5 to 20 percent group discount. Education is CHF 420, Training and Research CHF 560, Student and Classroom CHF 25, and PVsystCLI CHF 3,000. It is a subscription, not a perpetual licence.
Who it suits. Independent engineers, technical due diligence teams and LSS or CGPP developers.
Honest limitations. Desktop only, a genuinely steep learning curve, no proposals, no CRM, no collaboration and no Malaysian regulatory content. It is a physics instrument and does not pretend to be a business workflow. See our PVsyst alternative comparison.
4. Aurora Solar
What it does best. The deepest residential design and sales workflow in the category, with mature proposal templates and strong roof plane detection where imagery supports it.
Pricing. Basic is US$135 per user per month billed annually (US$1,620 a year, or US$159 month to month) and Premium is US$220 billed annually (US$2,640 a year, or US$259 month to month), each covering one user and 50 projects a month. Enterprise is custom. Five seats therefore run US$8,100 a year on Basic and US$13,200 on Premium, about MYR 35,600 to MYR 58,100. LIDAR modelling, bankable shade reports and battery modelling are Premium only, and plan sets are a separately priced service rather than a plan inclusion, with site models from US$9.99.
Who it suits. Residential-led operations at genuine scale with dollar-tolerant budgets.
Honest limitations. The Malaysian regulatory layer is absent: no NEM Rakyat or NOVA settlement logic, no export limiting for SELCO, no GITA modelling, no TNB formats. LIDAR coverage across Malaysia is limited, so the headline roof capture feature degrades to manual tracing on many addresses, and LIDAR modelling sits on the Premium plan rather than Basic. On price the gap is smaller than it used to look: Aurora Basic at US$1,620 a year is close to a SurgePV Team seat and cheaper than a SurgePV Individual seat, so the argument for SurgePV here is the Malaysian settlement modelling and the bundled proposal, not the licence fee. See our Aurora Solar alternative breakdown.
5. PV*SOL premium
What it does best. Detailed 3D shading, plus the strongest battery and hybrid simulation among the desktop tools. As Malaysian C&I customers start looking at storage for demand charge management, that second point matters more each year.
Pricing. EUR 845 per named user per year plus VAT, so EUR 4,225 for five seats, which is less than five SurgePV seats. The standard PV*SOL product is EUR 585. Valentin Software moved to user-based subscription on 19 November 2024, so this is no longer a perpetual licence; perpetual licences bought before that date remain usable indefinitely, but maintenance renewals for them ended on 1 October 2024.
Who it suits. Small consultancies and technical trainers who want simulation depth at a lower annual cost than a bundled cloud seat.
Honest limitations. Desktop software with a dated interface, slow on large commercial arrays, weak proposal output, painful collaboration across a distributed team, and no Malaysian regulatory content whatsoever.
6. OpenSolar
What it does best. A free design tier that is hard to argue with for a solo installer doing two or three residential jobs a month in Ipoh or Kota Kinabalu. Short learning curve, active community.
Pricing. The core platform is free. From 16 April 2026 OpenSolar charges for API Access, billed per project on creation, and for Connectors, billed as a flat monthly fee, but it has not published the rates and they vary by region.
Who it suits. Solo installers and new entrants who cannot justify a licence commitment yet.
Honest limitations. Depth is the constraint rather than price: commercial work and bankable shading are thin, and there is no NEM settlement logic and no GITA modelling. On cost it beats every paid tool on this list including ours, and until the 2026 API and Connector rates are published nobody can tell you what a Malaysian team will pay beyond zero for the core platform. Read our OpenSolar alternative analysis.
7. PVcase
What it does best. Terrain-aware ground-mount layout inside AutoCAD. Malaysian LSS sites are frequently converted plantation land with real slope and drainage constraints, and PVcase handles that far better than a rooftop-oriented tool.
Pricing. Not publicly listed. PVcase is quote only and requires an AutoCAD licence on top; any per-seat figure circulating in software directories is an unverified third-party estimate.
Who it suits. LSS and ground-mount developers and the EPCs serving them.
Honest limitations. No rooftop or residential relevance, no proposal workflow, and it requires an AutoCAD-fluent operator on staff. For the rooftop-dominated majority of Malaysian contractors that rules it out, as covered in our utility-scale solar design software guide.
8. RatedPower
What it does best. Automated utility-scale plant engineering that produces layouts, electrical design and preliminary documentation for large ground-mount projects in hours rather than weeks. For a developer preparing an LSS bid on a compressed timetable, that is a real advantage.
Pricing. Not publicly listed. RatedPower is enterprise quote only, and the $15,000-plus per seat figure that circulates for it is an industry-observed estimate rather than a vendor-confirmed price.
Who it suits. Developers at roughly 30 MW and above, a small and identifiable set of players in Malaysia.
Honest limitations. No rooftop capability, enterprise contract terms and pricing, and no Malaysian code library. Irrelevant to the large majority of the contractor market here.
9. Huawei FusionSolar Design
What it does best. It is fast, and for Huawei string inverters and optimisers the string sizing and mismatch handling are exact because the manufacturer wrote them. Huawei hardware is widely deployed on Malaysian C&I rooftops, which makes this more relevant here than in many markets.
Pricing. Not publicly listed. Access runs through an installer SmartPVMS account and Huawei publishes no price or plan table, so treat any claim that it is free as unverified until your Huawei distributor confirms the commercial terms in writing.
Who it suits. Contractors standardised on Huawei inverters who need a quick, correct string design and a fast plant layout.
Honest limitations. It designs Huawei systems, so your bill of quantities is locked to one manufacturer. Simulation depth is limited, there is no bankable report, no BOQ for the rest of the system, and no ringgit financial model with NEM settlement that a customer would accept as a proposal. The absence of published pricing is itself a limitation, because you cannot compare its cost of ownership against anything else on this list.
10. SolarEdge Designer
What it does best. Free, browser-based, and for SolarEdge power optimiser designs the string sizing and mismatch handling are exact. On cluttered Malaysian urban roofs with water tanks, stairwells and neighbouring shophouse walls, module-level electronics genuinely help, and this is the tool that sizes them properly.
Pricing. Free.
Who it suits. Installers standardised on SolarEdge hardware, common in higher-end Klang Valley and Penang residential work.
Honest limitations. It only designs SolarEdge systems, which locks your BOQ to one manufacturer at a price point many Malaysian tenders will not carry. Limited simulation depth, no bankable report, no BOQ for non-SolarEdge components, and no NEM or GITA financial modelling.
Mistakes Malaysian Contractors Make Choosing Design Software
-
1
Modelling NOVA exports at the retail tariff. Commercial exports under NOVA are credited at a displaced cost rate, not the retail rate. Using the retail number overstates savings on every export-heavy C&I design.
-
2
Designing for export when the site is on SELCO. Self-consumption means export limiting at the inverter and a size driven by the daytime load curve, not by roof area. These are different systems with different economics.
-
3
Applying Peninsular rules in Sarawak. Sarawak regulates its own electricity supply industry with Sarawak Energy as the utility. Its scheme structure and application process do not mirror the TNB one.
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4
Treating lightning protection as an afterthought. Malaysia has one of the highest flash densities in the world. Surge protective devices, bonding and the MS IEC 62305 risk assessment belong in the design and the BOQ, not on the site supervisor's memory.
-
5
Leaving GITA out of the proposal. For a corporate customer the tax allowance can shift after-tax payback by more than a year. If your document shows only the simple payback, the finance director is reading the wrong number.
The wider pattern set is covered in our common mistakes EPC companies make in rooftop solar writeup, and the performance ratio definition in our glossary explains how these losses compound rather than add.
Should a Malaysian Contractor Standardise on SurgePV?
- ✓ You design 5+ projects a month
- ✓ You bid C&I rooftops alongside residential
- ✓ You need NOVA and SELCO modelled separately from NEM Rakyat
- ✓ Your customer decisions turn on the after-tax number
- ✗ You bid LSS tenders that name PVsyst in the document list
- ✗ Annual licence cost is the deciding factor (PV*SOL at EUR 845, PVsyst at CHF 700, OpenSolar free)
- ✗ You are Huawei-only and need string sizing alone (FusionSolar, terms on request)
- ✗ You build terrain-heavy ground-mount (PVcase or RatedPower)
Verdict. For a five-person Malaysian contractor covering C&I rooftops and residential from one office, SurgePV wins on bundled scope and NEM settlement accuracy. It does not win on licence cost, and we are not going to claim it does: five PVsyst licences at CHF 3,500 and five PV*SOL premium seats at EUR 4,225 both undercut five SurgePV seats at US$6,495, and OpenSolar’s core platform is free. For a pure yield-report consultancy or an LSS bid team, PVsyst or HelioScope remains the honest answer, and bundling does not change that.
How Heaven Green Energy and SurgePV Help Malaysian Teams
Heaven Green Energy has delivered more than 10,000 solar installations, and our engineering group builds the tools we use on our own jobs. SurgePV came out of that: designers who had to hand an electrical engineer a drawing they would actually sign. For teams working in Malaysia the useful entry points are:
- Shadow analysis for 8,760-hour module-level shading on shophouse and warehouse roofs where neighbouring structures dominate.
- Solar simulation software for P50, P75 and P90 yield reports with equatorial weather files and tropical loss assumptions.
- Heaven Designs rooftop detailed engineering when you need a stamped drawing package rather than a design seat.
- Solar inverter certifications guide for the IEC series that Malaysia adopts as MS IEC.
For our own project delivery approach, see the commercial solar and industrial solar pages. The closest regional siblings for teams working across borders are the best solar design software in Singapore and best solar design software in Philippines guides, and the best solar design software pillar covers the choice outside any single market. Regional context sits with the IEA Southeast Asia energy outlook and IRENA country profiles, and incentive detail with MIDA.
Related Solar Design Software Guides
- Solar Design Software 2026: 7 Tools Compared and Priced
- Best Solar Design Software in Singapore: Top 10
- Best Solar Design Software in Philippines: Top 10
- Solar Design Software India: Platforms Compared
- Best Solar Design Software: The Global Ranking
- Commercial Solar Design Software Compared
Compare Other Markets and Tool Categories
- Best solar proposal software in Malaysia
- Best solar the full software stack in Malaysia
- Best solar shading analysis software in Malaysia
Frequently Asked Questions
What is the best solar design software in Malaysia in 2026?
SurgePV ranks first on our 4-point Malaysia bench with 35 of 40, at US$1,299 per user per year on the 5-User Team plan (US$6,495 for five seats, about MYR 5,720 and MYR 28,600). It models NEM Rakyat, NOVA and SELCO as three separate settlement mechanisms, carries GITA treatment in the cash flow, handles high diffuse fraction under monsoon cloud, and bundles SLD, BOQ and proposals in one licence. It is not the cheapest option: PVsyst scores 32 at CHF 700 per user per year, PV*SOL premium is EUR 845 per named user per year, and OpenSolar’s core platform is free. HelioScope scores 31 and remains the right answer when the deliverable is a bankable yield report.
How does NEM 3.0 work in Malaysia?
NEM 3.0 is a set of programmes rather than a single scheme. NEM Rakyat, for residential consumers, offsets exported units against imported units one to one. NEM NOVA, for commercial and industrial consumers, credits exports at a displaced cost rate below the retail tariff and allows offsetting across multiple accounts held by the same entity. NEM GoMEn covers government premises. SELCO is the self-consumption pathway with export limiting and no export credit. Quota positions have moved since 2024, so confirm current status with SEDA and TNB.
Does solar design software handle TNB interconnection requirements?
Not natively. No platform on this list ships a TNB application pack, and none has a Sarawak Energy variant. The better tools, including SurgePV, produce a clean single-line diagram with protection and metering, a load schedule and an equipment list that transfer into the utility’s forms with modest editing. Assembling and submitting the application, through a registered electrical contractor with a competent person of the correct grade, remains manual work for your team.
Are solar rules different in Sabah and Sarawak?
Yes, and the difference is structural rather than cosmetic. Suruhanjaya Tenaga’s jurisdiction covers Peninsular Malaysia along with Sabah and Labuan, while Sarawak regulates its own electricity supply industry under state law with Sarawak Energy as the utility and its own metering arrangements. Sabah, served by Sabah Electricity, has different grid conditions and connection realities in parts of the state. A design and application package prepared for Selangor cannot be reused unchanged in Kuching.
What soiling loss should I model for a Malaysian rooftop?
Two to five percent annually suits most Peninsular sites, which is lower than the Gulf or South Asia because rainfall is frequent. Raise it for sites near palm oil mills, cement works, quarries or major highways, and during regional haze episodes. The complication is tilt: Malaysian arrays are typically mounted at 10 to 15 degrees, so rain does not shed dirt efficiently and biological growth in permanent high humidity becomes a real mechanism that dry-climate soiling models do not represent.
How does lightning protection affect a Malaysian solar design?
Malaysia has among the highest lightning flash densities recorded anywhere, so MS IEC 62305 risk assessment, an air termination and down conductor scheme coordinated with the array, correctly rated surge protective devices on both the DC and AC sides, and equipotential bonding are part of the base design. Design software does not perform the risk assessment. What the better tools do is give you a place to specify the protection scheme so it appears on the single-line diagram and in the bill of quantities.
How much does solar design software cost in Malaysia?
Vendors bill in dollars, francs and euros rather than ringgit, so compare in the vendor’s own currency first. SurgePV’s 5-User Team plan is US$1,299 per user per year, US$6,495 for five seats, about MYR 28,600 at MYR 4.40 to the dollar. Aurora Solar is US$135 per user per month on Basic and US$220 on Premium when billed annually, so US$1,620 and US$2,640 a year. HelioScope is US$159 a month on Basic and US$259 on Pro. PVsyst is CHF 700 per user per year, and PV*SOL premium is EUR 845 per named user per year plus VAT. SolarEdge Designer is free and OpenSolar’s core platform is free, though OpenSolar’s 2026 API and Connector rates are not published. PVcase, RatedPower and Huawei FusionSolar Design do not publish prices at all.
What is SurgePV’s biggest weakness in the Malaysian market?
It has no native TNB application pack and no Sarawak Energy variant, so utility submissions and the Sarawak divergence stay manual. It does not perform MS IEC 62305 lightning risk assessment, only lets you specify the protection scheme in the drawing set and BOQ. Brand recognition is low because the product launched in 2025, so a large LSS bid naming PVsyst still needs PVsyst, and terrain-driven ground-mount layout is weaker than PVcase.
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Free trial, no credit card · $1,299 per user per year on the 5-User Team planDisclaimer: SurgePV is our own product. It is built by the Heaven Group, the same company as Heaven Green Energy, so treat this as a recommendation from its maker.