Free mock exam
Grid Connection — Renewable Energy & Solar PV Practice
Free topic-focused mock exam: all 17 questions on Grid Connection, drawn from the wider Renewable Energy & Solar PV bank. 35-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.
- Questions
- 17
- Time limit
- 35 min
- Pass mark
- 70% · 12/17
- Question bank
- 17
Free, no sign-up. Retake as many times as you like — the questions are reshuffled, with the answer order changed.
Sample questions
01What does G99 regulation cover?
- ASafety standards
- BPlanning permission
- CEnvironmental impact
- DGrid connection requirements
Why: G99 covers the requirements for connecting distributed energy resources to the distribution network.
02Under ENA G99, what is the registered capacity range for a Type A Power Generating Module?
- A0.8 kW or greater but less than 1 MW
- B1 MW or greater but less than 10 MW
- CBelow 0.8 kW
- DExactly 3.68 kW per phase
Why: G99 Issue 2 defines a Type A Power Generating Module as one with a connection point below 110 kV and a registered capacity of 0.8 kW or greater but less than 1 MW.
03Which device is used to actively limit the power exported to the grid from a solar installation?
- AAn export limitation device with a current/power sensor
- BA Type B residual current device
- CA maximum power point tracker in the inverter
- DA surge protective device on the a.c. side
Why: An export limitation device monitors current at the supply point and curtails inverter output to keep export within the DNO-agreed limit.
Common questions
Is the Grid Connection mock exam free?
Yes — 100% free, no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.
Can I retake the mock exam?
Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.
Does this count towards the real qualification?
No — this is independent practice material. To gain the actual qualification you need to sit the official assessment through an approved provider.
