燃气发电机组采购，很多人只盯着“功率够不够、效率高不高”，结果用起来才发现——火花塞好几百一个，几千小时就得换；机油消耗量比想象的翻一倍；厂家在千里之外，修一次等一周。

When it comes to purchasing gas generator sets, many people only focus on whether the power is sufficient and the efficiency is high, only to realize that there are hundreds of spark plugs that need to be replaced after thousands of hours; The oil consumption has doubled compared to expectations; The manufacturer is thousands of miles away and repairs take one week.

隐藏成本一：耗材价格差数倍

Hidden Cost One: Price Difference of Consumables Multiple Times

火花塞、滤清器是燃气发电机组的“易耗品”。不同品牌零配件价格相差数倍。某品牌火花塞几百元一只，另一品牌可能上千。一台十几缸的机组一次换下来，差价就是大几千。选型时问清楚：火花塞寿命多少小时？单价多少？单次更换费用多少？

Spark plugs and filters are consumables of gas generator sets. The prices of spare parts from different brands vary several times. A spark plug from a certain brand costs a few hundred yuan each, while another brand may cost thousands. A unit with more than ten cylinders can be replaced at once, and the price difference is several thousand yuan. When selecting, ask clearly: What is the lifespan of the spark plug in hours? What is the unit price? What is the cost of a single replacement?

隐藏成本二：机油消耗

Hidden Cost 2: Oil Consumption

燃气内燃机需要定期换机油，不同机型机油耗量差异明显。沼气、瓦斯等含腐蚀性成分的气体对机油污染更严重，消耗量比烧天然气时要大。按每年运行8000小时算，机油消耗量差0.1g/kWh，一年下来成本差好几万。

Gas internal combustion engines require regular oil changes, and there are significant differences in oil consumption among different models. Gases containing corrosive components such as biogas and gas cause more serious pollution to engine oil, with a higher consumption than when burning natural gas. Calculated based on 8000 hours of operation per year, the difference in oil consumption is 0.1g/kWh, resulting in a cost difference of tens of thousands of dollars per year.

隐藏成本三：大修间隔与大修费用

Hidden Cost 3: Overhaul Interval and Overhaul Cost

大修周期30000小时和50000小时的设备，差价可能只有几十万，但大修一次的费用可能上百万。选型时问：大修周期承诺多少小时？大修费用大概多少？ 这两个数字加在一起，才是设备的真实“全生命周期成本”。

The price difference between equipment with a major overhaul cycle of 30000 hours and 50000 hours may only be a few hundred thousand, but the cost of one major overhaul may be in the millions. When selecting, ask: How many hours is the promised overhaul cycle? What is the approximate cost of major repairs? The sum of these two numbers is the true 'full lifecycle cost' of the device.

选型建议： 燃气发电机组是“买着用着都要算”的设备。把备件价格、机油消耗、大修周期和大修费用提前问清楚，算一笔5年的总账，比只比“裸机价”靠谱得多。

Selection suggestion: Gas generator sets are equipment that should be considered for both purchase and use. Asking in advance about spare parts prices, oil consumption, overhaul cycles, and overhaul costs, and calculating a 5-year total, is much more reliable than just the "bare machine price".

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