generac makes a very good generator for all uses1. Do portable generators take less gas when the load is a lot lower?Basically, generators only have one speed since they run at a constant rpm. However, as power consumption increases the load on the engine increases and more fuel is consumed in maintaining that rpm. So a generator will use less fuel at 1/4 load than 1/2 load.2. How to wire a 240v mains generator to a portacabin?The advice to hire someone competant should be taken seriously. This is not something you should do unless you are entirely familiar with the workings of electrical systems. I am not sure what a portacabin is. Likely a different term used in these parts of the woods. You should install some sort of electrical panel, similar to one in a house. If there is a main feed from the electrical utility and you plan to use the generator as an emergency backup power source you should install a transfer panel. The neutral / ground bond should occur at one location only. This is usually in the main distribution panel. There seems to be no standard for portable generators in this matter. Some manufacturers supply a bonded neutral, others leave it floating. The system should be grounded, again usually at the main distribution panel. Even if you opt to hire an electrician, knowing and understanding what is being done is beneficial. You will be in a better position to tell if the electrician is full of BS or if he truly knows what he is doing. I've seen far too many electricians advise people in a terribly irresponsible manner and do unacceptably shoddy work. Do your research and ask questions. Read through my web page on home generators and email me if there are other questions.3. Why Own a Generator?A permanently installed automatic standby generator provides backup power protection and peace of mind for your family or business during a power outage. A standby generator runs on liquid propane or natural gas, and just like your central air conditioner, works automatically when you need it and shuts off when you do not . There's no need to manually fuel or start a standby generator, and you can eliminate the need for extension cords that portable generators require. Sizes are available to back up essential circuits only or to provide complete coverage for large homes and businesses. Around the home, a standby generator can create enough power for nearly all of your needs - heating or cooling, lighting and cooking - at the same time. For more information on standby generators, see our Standby Generator Buying Guide.4. How do those portable generators work? How much electricity can they create and what can it power?yes it needs to be running to provide power. you can get as low as 1000watts, up to 10,000watts you need oil and gas (or propane). The model and power output will determine the price. depends on what you need. computer's differ, a coffeemaker uses about 800watts. Honda makes the best generators, longest life. They are 5x the cost of a generic Chinese manufactured generator. edit: pay no attention to mark, his mom did not teach him the age old lesson "if you've nothing nice to say, do not say anything at all."5. World Best Generator Brands 2021Generators are appliances that convert mechanical energy into electrical power for use in an external circuit. They supply power during electricity outage, thereby preventing disruption of business operations. Due to the high global demand for generators, there exists a huge array of generator manufacturers worldwide - all fighting for a share of the market. Here are the world's best generator brands: Caterpillar Inc., which is based in Illinois, United States, is the world's biggest manufacturer of generator sets - offering the widest range of specifications available in the market. Caterpillar manufactures gas-powered generators whose sizes range from 7.2KVA to 480KVA and diesel powered generators ranging from 5.6KVA to 12,960KVA. The company's diesel engines are designed for thousands of working hours before overhaul. They are fitted with high-strength blocks, large bearing areas, and hardened crankshafts to lengthen their life cycles. Features like high-strength blocks, large bearing areas, steel backed aluminum alloy bearings and hardened crankshafts are a few examples of how Caterpillar engines are designed to deliver long life cycles.Cummins Inc. is an American Fortune 500 company that designs, manufactures, and distributes engines, filtration, and power generation products. Headquartered in Columbus, Indiana, Cummins manufactures leading generators whose sizes range from 15KVA to 3,000KVA. The power generator company offers the 250KVA to 500KVA range to contractors for powering site offices cranes and other diverse construction requirements. The 500KVA to 3,000KVA generators are used for permanent installations as backup power to large companies and factories. Headquartered in Brest in Northwest France, SDMO Industries designs, builds, and installs generating sets ranging from 1 kVA to 3,300 kVA. The company that was founded in 1966 offers a range of portable generators, industrial gensets and rental generators under the KOHLER-SDMO brand. KOHLER-SDMO generators are sold in more than 180 countries through a network of resident partners.SDMO Industries has six subsidiaries in Germany, Belgium, Sao Paulo, Spain, Miami, and the United Kingdom. Based in Glasgow, Scotland, Aggreko Plc is of the world's leading manufacturers of temporary power generators. Although the company provides both short-term power generation and temperature control equipment, Aggreko is renowned for its powerful generators that range in size from 30kW to 1,500kW. Aggreko was started in the Netherlands in 1962. The name Aggreko is a combination of the Dutch word 'aggregaten' (which means generator) and the first two letters of its founder's (Luc Koopmans) last name. The company can supply 15KVA to 2,000KVA in single generators, as well as multi-megawatt bundles using 1,250KVA units, which are interconnected. Aggreko was among the first companies in the world to sound-proof generators to keep things quiet for their customers.Established in 1873 in Stockholm, Sweden, for building and running Sweden's new railway, Atlas Copco is today a world leading producer of generators. The company provides both portable and stationary generators. Due to the rising demand for large scale power generators, Altas Copco now capitalizes on the 500KVA to 1,000KVA power nodes - although it still connects sites that require 20KVA to 275KVA ranges. FG Wilson is an Irish provider of leading diesel and gas generators, ranging from 6.8 KVA to over 2,500 KVA. The company that was founded in 1966 by Freddy Wilson - then a Belfast lad with a big dream - is a world leader in the power generation industry. FG Wilson's 730KVA to 2,500 KVA power nodes provide reliable power for critical installations such as airports, large factories, hospitals, mini power stations, and data centers etc. The company's product range includes open and enclosed generators supplying prime and standby power - from standby domestic use to power modules capable of operating as complete power stations feeding national grids.Headquartered in Peterborough, England, Perkins is one of the world's leading suppliers of gas and diesel generators. The company provides generators from 7KVA to 2,500 KVA. Perkins was acquired by Caterpillar in 1998 for $1.325 billion, forming what they claimed was the biggest diesel engine manufacturer in the world. The company has manufacturing plants in the US, UK, Brazil, China, India and a partnership with Ishikawajima-Shibaura-Machinery Corp. in Tokyo, Japan. The global generator market is projected to grow from an estimated $22.3 billion in 2019 to $29.3 billion by 2024. The market is expected to expand due to the rising demand for uninterrupted power from end-users. Never miss a story. Sign up for our newsletter.