How-to Guides

Compare efficiency, wattage, temperature coefficient, warranty and certification. Match panel type to roof space, budget and climate, then confirm inverter compatibility.

Find daily kWh from bills, divide by peak sun hours and panel rating, allow roughly twenty percent losses, then check available roof or ground area.

Survey, design, approve, mount, wire, protect, test and commission. Electrical connections should be completed by qualified, insured professionals following local code.

Monocrystalline maximises efficiency, polycrystalline lowers cost, and bifacial adds rear-side yield over reflective surfaces. Weigh space, budget, mounting height and expected gains.

Add equipment, installation, permits and batteries, then divide by annual savings. Include degradation, tariff changes, maintenance and incentives for realistic returns.

List essential loads, choose chemistry, check usable capacity, voltage, cycle life, warranty and inverter compatibility. Prioritise safety certification and a management system.

Multiply load kW by desired hours, divide by depth of discharge and efficiency, then add margin for ageing and future appliances.

Size for continuous and surge loads, match MPPT voltage windows, decide between string, micro or hybrid types and confirm monitoring and grid-code compliance.

Use interval data to define peak reduction in kW and shifted energy in kWh, then account for efficiency, degradation, cooling and fire safety.

Verify voltage, current and communication compatibility, choose series or parallel string layouts, size cables and fuses, and follow manufacturer wiring diagrams.

Define goals, gather data, assess roofs, design, finance, procure, build, commission and operate. Assign owners and milestones to every stage.

Model savings, degradation, escalation, operating costs and tax effects. Report payback, net present value and internal rate of return.

Cut waste first, generate daytime power, store surplus for evenings and use batteries to avoid peak tariffs and demand charges.

Check references, certifications, equipment quality, warranties, financial strength, delivery record and service capability before comparing price.

Define scope, performance targets, standards, site data, testing, documentation, warranties and maintenance duties so every bidder prices the same requirement.

Clean gently, inspect for cracks and hot spots, trim shading, check connectors and compare monitoring data against expected output.

Read error codes, check breakers, voltages and ventilation, review settings and firmware, and escalate faults you cannot safely resolve.

Use inverter portals, meters and alerts to compare production with expected values and track consumption trends.

Set inspection intervals, cleaning cycles, thermal imaging, electrical testing and spares, and keep records for warranties.

Audit loads, size the array for winter sunlight, size batteries for autonomy days and add generator backup.

Determine daily water volume and total dynamic head, select pump type, size the array and store water in tanks.

Check switchboard capacity, protection and meter arrangement, choose AC or DC coupling and install transfer arrangements safely.

List loads, add starting surges, apply derating for conditions and choose fuel type, enclosure and transfer switch.

Check roof condition, shading, structure, switchboard and access, and gather bills and drawings before surveys.

Provide bills, location, loads, goals and timeline. Ask for itemised scope, assumptions, warranties and exclusions.