--- title: "Runtech China RT30WM 30W Solar Panel - Specs & Review | ComparePV" description: "Runtech China RT30WM 30W solar panel. Specs: 13.07% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/runtech-china-rt30wm" updated: 2026-09-11 --- # Runtech China RT30WM Strong in heat, modest efficiency 91 panels in the 0-130 W band, all technologies ## Identity - **Manufacturer:** Runtech China - **Model:** RT30WM - **Series:** RT Compact Mono - **Rated power:** 30 W - **Cell technology:** Monocrystalline ## How it compares Compared against 0-130 W band, all technologies (91 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 30 W | 100 W | Weak - bottom 3% | | | Module efficiency | 13.07% | 15.40% | Weak - bottom 9% | 13,966 | | Power density | 130.7 | 151.5 | Weak - bottom 15% | 13,951 | | Temperature coefficient | -0.230 | -0.370 | Strong - top 2% | 9 | | Weight (kg) | 2.5 kg | 7.7 kg | Typical | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 13.07% | 15.40% | Weak - bottom 9% | 13,966 | | Power density | 130.7 | 151.5 | Weak - bottom 15% | 13,951 | | Temperature coefficient | -0.230 | -0.370 | Strong - top 2% | 9 | | Weight per kWp | 83.3 | 72.9 | Typical | 13,798 | | Performance warranty | - | 25 yrs | | | ### Strengths - **-0.230 %/°C temperature coefficient** - Top 2% of the 0-130 W band, against a median of -0.370. Ranked 9th in the whole database. ### Watch out for - **13.07% module efficiency** - Bottom 9% of the 0-130 W band, against a median of 15.40%. Ranked 13,966th in the whole database. - **130.7 watts per square metre** - Bottom 15% of the 0-130 W band, against a median of 151.5. - **Best for:** Hot roofs and southern climates. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 30 W - **Efficiency:** 13.07 % - **Voltage at Pmax (Vmp):** 18.40 V - **Current at Pmax (Imp):** 1.63 A - **Open-circuit voltage (Voc):** 22.60 V - **Short-circuit current (Isc):** 1.76 A - **Max system voltage:** 715 V ### Temperature - **Temperature coefficient of Pmax:** -0.230 %/degC - **Temperature coefficient of Voc:** -0.330 %/degC - **Temperature coefficient of Isc:** 0.100 %/degC - **NOCT:** 47 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 36 ### Physical - **Length:** 656 mm - **Width:** 350 mm - **Thickness:** 25 mm - **Weight:** 2.5 kg - **Area:** 0.23 m2 - **Power density:** 130.7 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13966 of 14005 | | Power density | 13951 of 14005 | | Temperature coefficient | 9 of 14005 | | Weight | 13798 of 14005 | | Warranty | 13880 of 14005 | ## About this series The Runtech China RT Compact Mono series consists of advanced modules based on **high-efficiency monocrystalline cells**, designed to maximize energy yields on limited mounting surfaces. The use of **Half-Cut cell technology** significantly reduces internal losses and improves the efficiency of the entire system in partial shading conditions, which is crucial for installations on complex residential roofs. Thanks to the use of multi-busbar MBB connections, these panels offer more stable current flow and higher resistance to micro-cracks, which directly translates into **long-term reliability and mechanical durability** even under heavy snow or wind loads. This addresses the typical problem of rapid module degradation in the variable Polish climate. This product is dedicated to investors seeking an optimal balance between price and modern technology, offering efficiency that exceeds standard market solutions. The compact frame format makes the panels much easier to install, which will be appreciated by installers working at heights. By choosing the RT Compact Mono series, the user gains an **excellent ratio of generated power to external dimensions**, allowing for the installation of an efficient photovoltaic system even on small or unconventional roof surfaces. ## Notable figures - Efficiency of 13.1% is 8.8pp below the \*\*database\*\* median (21.8%) - 130.7 W/m² power density is 87.4 W/m² below \*\*database\*\* median (218.1 W/m²) - requires larger installation area - At -0.23%/°C (vs median -0.30%/°C), loses ~3% less power in hot conditions - At 2.5 kg, this panel is 24.0 kg lighter than \*\*database\*\* median (26.5 kg) - easier handling during installation - Ranked #13966 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the Runtech China RT Compact Mono series come with? The manufacturer provides two separate warranties: a 15-year product warranty covering material and workmanship defects, and a 25-year linear power output warranty guaranteeing the module retains a defined performance level throughout its service life. This coverage is standard for this class of monocrystalline modules and gives homeowners confidence in the long-term reliability of their PV system. ### Is the RT Compact Mono series suitable for a small or irregularly shaped roof? Yes, the RT Compact Mono series was specifically designed for installations with limited or non-standard mounting area. The compact frame dimensions allow more efficient use of available roof sections, and the 300 Wp peak power per module means even a modest number of panels can deliver meaningful energy output. Installers appreciate the easier handling and reduced labor time when working at height. ### What is half-cut cell technology and what does it mean for RT Compact Mono performance? Half-cut technology splits each monocrystalline cell in two, lowering internal resistance and reducing resistive losses. In real-world conditions, RT Compact Mono modules perform better under partial shading — from a chimney or dormer window, for example — compared to conventional full-cell modules. This advantage is particularly relevant for typical residential rooftops where some shading is nearly unavoidable. ### Can RT Compact Mono panels withstand heavy snow loads and harsh winter conditions? The RT Compact Mono series uses multi-busbar MBB interconnection, which significantly increases cell resistance to microcracks — the primary cause of accelerated degradation under cyclical mechanical stress. The modules are engineered to handle high snow loads and wind pressure, making them well-suited for the variable climate across central and northern Europe. ### What is the peak power of an RT Compact Mono panel and is it enough for a residential home? Each module delivers up to 300 Wp under standard test conditions (STC). A typical single-family home consuming 4,000–5,000 kWh per year generally requires a 4–6 kWp system, which translates to 14–20 panels from this series. The compact form factor makes it possible to fit such a system even on rooftops with limited usable surface area. ### How does the RT Compact Mono series compare to standard monocrystalline panels on the market? Compared to conventional mono modules, the RT Compact Mono combines half-cut cell architecture with multi-busbar MBB electrodes, resulting in higher module efficiency, improved shading tolerance, and reduced susceptibility to microcracks. The compact frame design also simplifies logistics and on-roof handling, which lowers overall balance-of-system (BoS) labor costs relative to larger, heavier modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/30w-69131a8f22ee.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Runtech China RT 4BW](https://comparepv.com/panel/runtech-china-rt-4bw) | 4 W | -26 W, hotter, +11.2 pp | | [SpolarPV Type Q](https://comparepv.com/panel/spolarpv-type-q) | 45 W | Hotter, heavier, +2.1 pp | | [TPL Solar TPL80S-36](https://comparepv.com/panel/tpl-solar-tpl80s-36) | 80 W | +50 W, hotter, +1.4 pp | | [Gamko New Energy GKA157F50W](https://comparepv.com/panel/gamko-new-energy-gka157f50w) | 50 W | +20 W, +0.6 pp | | [Trina Solar TEB-NEGA2CD.48-80W (Clay)](https://comparepv.com/panel/trinasolar-evergreen-shanghai-pv-tech-co-ltd-teb-nega2cd-48-80w-clay) | 80 W | +50 W, hotter, heavier | --- Source: https://comparepv.com/panel/runtech-china-rt30wm Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.