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Solar energy guides
How each component of a photovoltaic system works, the types on the market and what to check in the datasheet before choosing — written for installers and buyers.
Solar panels: a complete guide to choosing photovoltaic modules
Solar panels explained: technologies, power, efficiency, temperature coefficient and warranty — what to check in the datasheet before choosing a photovoltaic module.
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Solar inverters: a complete guide to types and how to choose
Solar inverters explained: grid-tied, hybrid, off-grid and microinverters, MPPT and DC/AC ratio — how to choose the right inverter power for a photovoltaic system.
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Solar mounting structures: roof and ground fixing systems and how to choose
Mounting structures for solar panels on fibre-cement, metal and ceramic-tile roofs, flat slabs and the ground — materials, wind loads and how to choose the right one.
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Solar batteries: types, lithium vs lead-acid and how to choose
Solar batteries compared: lithium (LiFePO4) and lead-acid, capacity, depth of discharge and cycle life — how to choose energy storage for hybrid and off-grid systems.
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Solar charge controllers: PWM vs MPPT and how to choose
Solar charge controllers explained: the difference between PWM and MPPT, how to size one and how to choose the right model for an off-grid system.
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Solar cables: cross-section, colours and how to choose PV cable
Photovoltaic cable explained: cross-section, colours, UV resistance and how to size the right cable for a solar energy system.
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MC4 solar connectors: what they are and how to use them safely
MC4 connectors explained: what they are for and how to make safe, waterproof connections between panels, cables and inverter in a photovoltaic system.
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Solar string boxes: what they are, what they do and how to choose
Solar string boxes explained: the DC protection enclosure, its components (surge protection and fuses) and how to choose the right one for a photovoltaic system.
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Transformers for solar power: when you need one
Transformers in solar projects: when they are needed in solar plants and three-phase systems, the types available and how to choose one for a photovoltaic project.
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Size the whole system
Once you know the components, estimate the system size, number of panels and monthly generation for a consumption in Brazil.